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4 inch length Screws
478,653 Screws, showing 200, (click on any line for more information)
| Buy from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| MESAFAST | CA | Self-Tapping Self-Drilling Screw (Tek etc.) | Steel | Zinc/Clear | #12-14 x 4 | #12-14 x 4 phillips pan self-drilling #3pt steel zinc | 750.0 | 
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| MESAFAST | CA | Eye Screw | Steel | Zinc/Clear | .192 x 4 | gate hook with eye | 23.0 | 
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| MESAFAST | CA | Machine Screw | Steel | Zinc/Clear | 3/8-16 x 4 | phil round zinc | 46.0 | 
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| MESAFAST | CA | Self-Tapping Sheet Metal Screw (types a,b,ab) | Steel | Zinc/Clear | #8-15 x 4 | phil pan tsa type-a | 200.0 | 
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| MESAFAST | CA | Lag Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 x 4 | hex lag 18-8 s/s | 1.0 | 
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| MESAFAST | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | phil flat machine 18-8 ss | 50.0 | 
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| MESAFAST | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | slotted pan mach 18-8 s/s | 34.0 | 
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| MESAFAST | CA | Self-Tapping Sheet Metal Screw (types a,b,ab) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #12 x 4 | phil pan type-a f/t 410 s/s hard | 18,000.0 | 
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| MESAFAST | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 1/2 x 4 | 1/2 x 4 hwh wedge-bolt threaded anchor ATITEN5064Z | 10.0 | 
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| MESAFAST | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 3/8 x 4 | 3/8 x 4 hwh wedge-bolt threaded anchor ATITEN2464Z | 155.0 | 
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| MESAFAST | CA | Drywall Screw | Steel | Phosphate | #10 x 4 | phil bugle dws coarse phos | 200.0 | 
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| MESAFAST | CA | Drywall Screw | Steel | Zinc/Yellow | #10 x 4 | phil bugle dws coarse yellow zc | 250.0 | 
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| MESAFAST | CA | Drywall Screw | Steel | Zinc/Clear | #10 x 4 | phil bugle dws fine gold zc | 90.0 | 
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| MESAFAST | CA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | slotted flat machine | 212.0 | 
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| MESAFAST | CA | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | slotted flat machine | 53.0 | 
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| MESAFAST | CA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | slotted flat machine | 5.0 | 
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| MESAFAST | CA | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | slotted round machine | 402.0 | 
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| MESAFAST | CA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | slotted round machine | 37.0 | 
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| MESAFAST | CA | Self-Tapping Sheet Metal Screw (types a,b,ab) | Steel | Zinc/Clear | #14 x 4 | phil flat type-a | 210.0 | 
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| MESAFAST | CA | Self-Tapping Sheet Metal Screw (types a,b,ab) | Steel | Zinc/Clear | #10 x 4 | phil pan type-a | 50.0 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 5/8-11 x 4 | 5/8-11x4 alloy steel square cup point set screw | 10 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 9/16-12 x 4 | 9/16-12x4 alloy steel square cup point set screw | 137 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 3/8-16 x 4 | 3/8-16x4 alloy steel square cup point set screw | 3 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 4 | 5/16-18x4 alloy steel square cup point set screw | 240 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 7/16-14 x 4 | 7/16-14x4 alloy steel square cup point set screw | 5 | 
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| SunPack | FL | Lag Screw | Steel | Zinc/Clear | 3/8-16 x 4 | 3/8-16x4 lag bolt zinc | 24 | 
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| R&S Indus | OR | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | #10-24x4 (flat) flat head slottedmachine screw flat head slotted zinc cr+3 | 21 | 
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| R&S Indus | OR | Machine Screw | Steel | Zinc/Clear | #10-32 x 4 | 10/32 x 4 machine screw round slottedzinc | 226 | 
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| R&S Indus | OR | Self-Tapping Screw w/ Neo Bonded Washer (Roofing/Siding/Pole Barn Screw) | Steel | Plain | 1/4-20 x 4 | 1/4-20 x 4 hex wash head tek 5 w/neo oxy seal | 4 | 
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| R&S Indus | OR | Set Screw (Square Head) | Steel | Plain | 1/4-20 x 4 | 1/4-20x4 square head set screws cup point coarse case hardened plain | 18 | 
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| R&S Indus | OR | Machine Screw | Steel | Zinc/Clear | 3/8-16 x 4 | 3/8-16 x 4 machine screw round slottedzinc | 300 | 
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| R&S Indus | OR | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 4 | 1/2-13x4 square head set screws cup point coarse stain a2 (18-8) | 20 | 
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| R&S Indus | OR | Lag Screw | Grade 5 | Zinc/Clear | 3/4-4 1/2 x 4 | 3/4-4 1/2x4 hex lag screw low carbon zinc cr+3 lb2z075040000 | 84 | 
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| Endries | WI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | 5/16-18x4 slotted round head machine screw zinc | 450 | 
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| Endries | WI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 4 | 8-32x4 18-8 s/s steel phillips pan head machine screw | 495 | 
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| Endries | WI | Self-Tapping Sheet Metal Screw (types a,b,ab) | Steel | Zinc/Clear | #14 x 4 | 14x4 slotted hex washer head type-a tapping screw trivalent clear zinc | 3643 | 
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| Endries | WI | Machine Screw | Steel | Zinc/Clear | 3/8-16 x 4 | 3/8-16x4 slotted flat head machine screw zinc | 50 | 
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| SWACO | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 4 | 5/16-18x4 square set sc cup case har | 190 | 
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| SWACO | OH | Set Screw (Socket Head) | Steel | Plain | 1/2 x 4 | 1/2x4 shss alloy steel | 33 | 
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| SWACO | OH | Set Screw (Socket Head) | Steel | Plain | 3/4 x 4 | 3/4x4 shss alloy steel | 47 | 
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| MTP | CA | Machine Screw | Steel | Plain | 1/4-20 x 4 | 1/4-20 x 4 st/zn slotted truss m/s | 50 | 
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| SWACO | OH | Lag Screw | Steel | Zinc/Clear | 5/16-9 x 4 | 5/16-9x4 hex lag sc low stl zn | 325 | 
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| SWACO | OH | Lag Screw | Steel | Galvanized | 5/16-9 x 4 | 5/16-9x4 hex lag sc low stl hdg | 84 | 
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| Cal Fastenrs | CA | Lag Screw | Steel | Galvanized | 1/2 x 4 | square lag bolt -fetter drive | 18 | 
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| MESAFAST | CA | Self-Tapping Sheet Metal Screw (types a,b,ab) | Steel | Zinc/Clear | #12 x 4 | phil flat type-a | 300.0 | 
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| MESAFAST | CA | Self-Tapping Self-Drilling Screw (Tek etc.) | Steel | Zinc/Clear | #10-16 x 4 | #10-16 x 4 hwh self drilling steel zinc | 200.0 | 
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| ACCURATE | IL | Set Screw (Square Head) | Steel | Plain | 5/8-11 x 4 | coarse square set scr cup | 21 | 
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| ACCURATE | IL | Wood Screw | Steel | Zinc/Clear | 16 x 4 | slotted flat w/s | 25 | 
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| ACCURATE | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | phillips pan full/thrd 18-8 s/s | 18 | 
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| ACCURATE | IL | Set Screw (Square Head) | Steel | Plain | 1/2-13 x 4 | coarse square set scr cup | 171 | 
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| ACCURATE | IL | Lag Screw | Steel | Plain | 3/8 x 4 | square lag bolt | 2450 | 
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| ACCURATE | IL | Self-Tapping Self-Drilling Screw (Tek etc.) | Steel | Zinc/Clear | 5/16 x 4 | unslotted indented hex washer tek #3 point | 300 | 
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| Endries | WI | Self-Tapping Sheet Metal Screw (types a,b,ab) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-12 x 4 | 10-12x4 18-8 stainless steel hex washer head type-a tapping screw | 400 | 
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| Endries | WI | Self-Tapping Sheet Metal Screw (types a,b,ab) | Steel | Zinc/Clear | #10-12 x 4 | 10-12x4 phillips pan head type-a tapping screw trivalent clear zinc | 600 | 
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| Endries | WI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 | 5/16-18x4 18-8 stainless steel phillips flat head machine screw | 50 | 
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| Endries | WI | Wood Screw | Plain | 5/16 x 4 | st516x4b 5/16x4 6-lobe t30 drive round washer head type-17 wood screw golden | 750 | 
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| Endries | WI | Set Screw (Square Head) | Steel | Plain | 7/8-9 x 4 | 7/8-9x4 square headed set screw cup point plain | 55 | 
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| MESAFAST | CA | Self-Tapping Sheet Metal Screw (types a,b,ab) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #12 x 4 | phil flat type-a 18-8 s/s | 100.0 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 3/4-10 x 4 | 3/4-10x4 alloy steel square cup point set screw | 94 | 
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| Endries | WI | Self-Tapping Self-Drilling Screw (Tek etc.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #12-14 x 4 | 12-14x4 410 stainless steel hex washer head self drill screw | 880 | 
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| Future Fastener | TX | Self-Tapping Screw w/ Neo Bonded Washer (Roofing/Siding/Pole Barn Screw) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #14 x 4 | #14x4 hex washer tek screw 18-8 304 steel w/neoprene bonded sealing washer | 300 | 
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| Future Fastener | TX | Wood Screw | Brass | Plain | #10 x 4 | #10x4 phillips flat head wood screw brass (m4.8x100) | 60 | 
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| Empire | WA | Lag Screw | Steel | Galvanized | 1/2 x 4 | 1/2 x 4 hex lag screw h.d.g hot dip galvanized | 25 | 
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| MESAFAST | CA | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | phil flat machine | 100.0 | 
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | #10-24x4 round slotted machine screw zinc | 50 | 
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| MESAFAST | CA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | phil pan | 100.0 | 
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| MESAFAST | CA | Lag Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 x 4 | hex lag 18-8 s/s | 44.0 | 
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| MESAFAST | CA | Self-Tapping Self-Drilling Screw (Tek etc.) | Steel | Plain | #12-14 x 4 | hwh tek #3 point dom. | 200.0 | 
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| MESAFAST | CA | Self-Tapping Self-Drilling Screw (Tek etc.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #14-14 x 4 | hwh self-drilling #3 point 410 s/s | 500.0 | 
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| HBBOLT | CA | Self-Tapping Self-Drilling Screw (Tek etc.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #12 x 4 | flat phil teks 410 ss | 4,700 | 
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| MESAFAST | CA | Lag Screw | Steel | Zinc/Clear | 5/16 x 4 | hex lag | 75.0 | 
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| MFS | KS | Machine Screw | Steel | Zinc/Clear | #8-32 x 4 | slotted flat | 304 | 
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| MFS | KS | Machine Screw | Steel | Zinc/Clear | #10-32 x 4 | slotted round | 77 | 
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| MFS | KS | Machine Screw | Steel | Zinc/Yellow | #8-32 x 4 | slotted pan | 280 | 
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| MFS | KS | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | slotted round | 75 | 
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| MFS | KS | Machine Screw | Brass | Plain | 5/16-18 x 4 | slotted flat | 18 | 
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| MESAFAST | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 4 | phil flat mach 18-8 s/s | 20.0 | 
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| MESAFAST | CA | Lag Screw | Steel | Zinc/Clear | 5/16 x 4 | eyebolt lag thread #11104 | 4.0 | 
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| MESAFAST | CA | Self-Tapping Self-Drilling Screw (Tek etc.) | Steel | Zinc/Clear | 5/16-12 x 4 | 5/16-12 x 4 hwh self drilling tek 3 steel zinc zinc | 500.0 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 1/2-13 x 4 | 1/2-13x4 alloy steel square cup point set screw | 1 | 
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| MESAFAST | CA | Self-Tapping Sheet Metal Screw (types a,b,ab) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-15 x 4 | phil flat type-a 18-8 s/s | 100.0 | 
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| MESAFAST | CA | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | slotted round machine | 100.0 | 
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| MESAFAST | CA | Self-Tapping Thread Cutting Screw (types f,1,23,25) | Steel | Free Zinc Basecoat + Ceramic Topcoat (Ruspert, Ruspro, Dagger-Guard, etc.) | #10-8 x 4 | square flat particle board type-17 w/nibs green ceramic coated | 650.0 | 
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| HBBOLT | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 4 | round slotted m/s 18-8 ss | 225 | 
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| HBBOLT | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | round slotted m/s 18-8 ss | 250 | 
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| HBBOLT | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 4 | round slotted m/s 18-8 ss | 215 | 
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| HBBOLT | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 | round slotted m/s 18-8 ss | 25 | 
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| Purchase | MO | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 3/16 x 4 | tapper hwh 3/16 x 4 | 100 | 
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| Purchase | MO | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 1/4 x 4 | tapper hwh 1/4 x 4 | 200 | 
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| Purchase | MO | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 3/16 x 4 | tapper pfh 3/16 x 4 | 100 | 
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| Purchase | MO | Self-Tapping Sheet Metal Screw (types a,b,ab) | Grade 5 | Zinc/Clear | 1/2-13 x 4 | 1/2-13 x 4 hex t/b gr.5 znc | 75 | 
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| Purchase | MO | Self-Tapping Sheet Metal Screw (types a,b,ab) | Steel | Zinc/Clear | 3/4-10 x 4 | 3/4-10 x 4 hex t/b zn full thread | 70 | 
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| Purchase | MO | Lag Screw | Steel | Zinc/Clear | 1/2 x 4 | 1/2 x 4 hex lag screw stl zn | 110 | 
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| Purchase | MO | Machine Screw | Steel | Zinc/Clear | 3/8-16 x 4 | 3/8-16 x 4 slotted round m/s stl zinc | 200 | 
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| Purchase | MO | Machine Screw | Steel | Plain | 1/4-20 x 4 | 1/4-20 x 4 slotted round m/s steel plain | 966 | 
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| Purchase | MO | Self-Tapping Self-Drilling Screw (Tek etc.) | Steel | Zinc/Clear | #14 x 4 | 14 x 4 hex washer tek 3 steel zinc | 400 | 
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| MESAFAST | CA | Self-Tapping Self-Drilling Screw (Tek etc.) | Steel | Free Zinc Basecoat + Ceramic Topcoat (Ruspert, Ruspro, Dagger-Guard, etc.) | #1/4-20 x 4 | hwh self drilling #5 point dagger guard exterior coating dagger guard exterior coating | 85.0 | 
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| HBBOLT | CA | Lag Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16 x 4 | lag bolt 18-8 ss | 147 | 
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| HBBOLT | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 4 | pan phillips ss | 117 | 
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| HBBOLT | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | pan slotted m/s 18-8 s/s | 300 | 
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| HBBOLT | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 1/4 x 4 | 1/4 x 4 hwh aggregator screws HTCAG 144 | 150 | 
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| HBBOLT | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 3/16 x 4 | 3/16 x 4 hwh ultra con HUC 3164 | 300 | 
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| HBBOLT | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 1/4 x 4 | 1/4 x 4 hwh ultra con HUC 144 | 618 | 
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| HBBOLT | CA | Machine Screw | Steel | Zinc/Clear | #10-32 x 4 | round phil mach | 300 | 
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| HBBOLT | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Zinc/Clear | 1/2 x 4 | titen hd z/p | 198 | 
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| HBBOLT | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Zinc/Clear | 3/8 x 4 | 3/8 x 4 simpson titen hd screw anchor TITENHDZ 384 | 206 | 
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| HBBOLT | CA | Steel | #10 x 4 | 10 x 4 rustguard dek scr w/nib DECKRG 104 | 80 | 
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| HBBOLT | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 4 | flat phil m/s 18-8 ss | 28 | 
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| HBBOLT | CA | Machine Screw | Steel | Zinc/Clear | #10-32 x 4 | phil flat ms | 830 | 
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| HBBOLT | CA | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | flat phil | 1,035 | 
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| HBBOLT | CA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | flat phil. | 25 | 
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| HBBOLT | CA | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | flat phil m/s z/p | 421 | 
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| HBBOLT | CA | Steel | Plain | 1-8 x 4 | adjustment 4140 | 10 | 
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| HBBOLT | CA | Self-Tapping Self-Drilling Screw (Tek etc.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #10 x 4 | flat phil teks 410 ss | 1,000 | 
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| HBBOLT | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 1/4 x 4 | 1/4 x 4 phil fh ultra con FUC 144 | 638 | 
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| HBBOLT | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 1/4 x 4 | 1/4 x 4 phil fh aggregator scr FTCAG 144 | 25 | 
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| HBBOLT | CA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Plain | 3/16 x 4 | 3/16 x 4 phil fh ultra con FUC 3164 | 300 | 
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| WDMB | IA | Lag Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 x 4 | scr lag (18 8) 3/8x4 (W0M0) | 14,212 | 
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| WDMB | IA | Concrete/Masonry Screw (Tapcon, Titen etc.) | Steel | Zinc/Clear | t 3/8 x 4 | hex cap screwwhd tapcon anc ldt st (zn) 3/8x4 1015500841090 100 (W010) | 200 | 
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| WDMB | IA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | machine screw pan st (zn) phillips 1/4-20x4 (W040) | 1,800 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 3/4-10 x 4 | square cup point set | 94 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 7/16-14 x 4 | square cup point set | 5 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 3/8-16 x 4 | square cup point set | 7 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 9/16-12 x 4 | square cup point set | 139 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 1/2-13 x 4 | square cup point set | 1 | 
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| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 5/8-11 x 4 | square cup point set | 10 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | Steel | Plain | 3/8-7 x 4 | 3/8-7x4 bh penta plus lag screw | 41 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 x 4 | 3/8x4 lag screw key-rex ss{60lw2-50f | 572 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 4 | 1/2-13x4 bh hex-pin m/s ss | 47 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 | 5/16-18x4 bh penta-plus m/s ss | 279 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 x 4 | 5/8-11x4 bh penta plus ss | 270 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 4 | 1/2-13x 4 bh penta-plus ss | 333 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | 1/4-20x4 bh key-rex m/s ss{ | 1 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 | 3/8-16x4 bh key-rex m/s ss | 325 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8 x 4 | 5/8 x 4 bh key-rex m/s ss | 1 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 | 3/8-16x4 rh raptor m/s ss | 2 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 | 3/8-16x4 rh raptor m/s ss{x50-3h}exclusive | 0.2 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 | 3/8-16x4 rh raptor m/s ss{90nw2-50fe}exclusive | 0.061 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 | 3/8-16x4 rh raptor m/s ss{x50-5ar} | 05 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 | 3/8-16x4 th key-rex m/s ss | 480 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 4 | 1/2-13 x 4 bh keyed-lok m/s ss | 485 | 
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| Bryce Fastener | AZ | Tamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 | 3/8-16x4 bh keyed-lok m/s ss | 29 | 
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| ACF | CA | Lag Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16 x 4 | 5/16x4 s/s hex lag screw | 750 | 
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| ACF | CA | Lag Screw | Steel | Galvanized | 3/8 x 4 | 3/8x4 hex lag screw hot dipped galvanized | 675 | 
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| ACF | CA | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | 10-24x4 phillips flat m/s z/p rohs compliant | 25 | 
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| ACF | CA | Drywall Screw | Steel | Plain | #10 x 4 | #10x4 phillips bugle drywall screw black | 600 | 
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| ACF | CA | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | 10-24x4 phillips pan m/s z/p rohs compliant | 750 | 
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| ACF | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 4 | 8-32x4 s/s phillips pan m/s | 1360 | 
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| ACF | CA | Machine Screw | Steel | Zinc/Clear | #8-32 x 4 | 8-32x4 slotted round m/s z/p rohs compliant | 1500 | 
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| ACF | CA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20x4 slotted round m/s z/p rohs | 44 | 
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| ACF | CA | Self-Tapping Thread Cutting Screw (types f,1,23,25) | Steel | Plain | 1 1/2 x 4 | 1-1/2 x4 type-f wiring duct light gray 6 | 120 | 
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| Wurth Ada | MN | Lag Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 x 4 | scr lag (18 8) 3/8x4 | 12,002 | 
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| Wurth Ada | MN | Set Screw (Square Head) | Steel | Zinc/Clear | 1/2-13 x 4 | scr set square cp charound (zn) 1/2-13x4 | 1,040 | 
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| Wurth Ada | MN | Set Screw (Square Head) | Steel | Plain | 1-8 x 4 | scr set square cp charound (pl) 1-8x4 | 100 | 
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| Wurth Ada | MN | Lag Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 x 4 | scr lag (18 8) 1/2x4 | 237 | 
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| Wurth Ada | MN | Machine Screw | Steel | Zinc/Yellow | #10-32 x 4 | scr m/s pan steel (zy) phillips 10-32x4 | 700 | 
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| Wurth Ada | MN | Machine Screw | Steel | Zinc/Clear | #8-32 x 4 | scr m/s round steel (zn) slotted 8-32x4 | 3,450 | 
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| Wurth Ada | MN | Set Screw (Square Head) | Steel | Plain | 1/2-13 x 4 | scr set square cp charound (pl) 1/2-13x4 | 125 | 
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| Wurth Ada | MN | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 | scr m/s pan (18 8) phillips 5/16-18x4 | 300 | 
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| Wurth Ada | MN | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | scr m/s round steel (zt) phillips 1/4-20x4 | 300 | 
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| Wurth Ada | MN | Lag Screw | Steel | Plain | 3/8 x 4 | scr lag steel (pl) 3/8x4 | 408 | 
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| Wurth Ada | MN | Lag Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 x 4 | scr lag (18 8) 1/4x4 | 100 | 
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| A & A Bolt | MD | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 slotted round head machine screws zinc plated | 244,000 | 
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| Valley Nu | WA | Lag Screw | Steel | Plain | 3/8 x 4 | hex lag | 18 | 
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| Valley Nu | WA | Lag Screw | Steel | Galvanized | 3/4 x 4 | hex lag hdg | 25 | 
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