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4 inch length Machine Screws (ASME B18. 6.3)
Machine Screws are uniformly threaded screws which are designed to be screwed into pre-drilled, pre-threaded holes, or in conjunction with a nut, usually with a diameter less than 1/4inch. Larger diameter machine screws with a hex head are usually referred to as machine bolts.
99 results, (click on any line for more information)
| Search Results Sponsored by ISSCO, Inc., your source for Machine Screws. For more results, visit isscoinc.com | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Buy Machine Screws from one of our FCH Network Members | ||||||||
| GLF | OH | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | #6-32x4 phil pan m/s stl zc b18.6.3 () () () | 750,000 |
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| GLF | OH | Machine Screw | Steel | Black Oxide | #10-24 x 4 | 10-24x4 combo pan m/s stl blk ox b18.6.3 () () () | 3931,000 |
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| Irwin Ind | Ont | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | 6-32 x 4 pan phillips machine screw steel clear zinc b18.6.3 | 550 |
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| BHAM | AL | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | 6-32x4 slotted flat m/s zinc b18.6.3 | 73 |
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| Ababa | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 4 | 10-24 x 4 p-flat m/s s/s b18.6.3 | 125 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | 10-24 x 4 p-flat m/s stl znc b18.6.3 | 1000 |
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| Ababa | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 4 | 10-24 x 4 p-oval m/s s/s b18.6.3 | 83 |
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| Ababa | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 4 | 10-24 x 4 phil-pan mach screw s/s b18.6.3 | 350 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | 10-24 x 4 p-pan m/s stl znc b18.6.3 | 862 |
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| Ababa | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 4 | 10-32 x 4 p-pan mach screw s/s b18.6.3 | 125 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | #10-32 x 4 | 10-32 x 4 phil-pan mach screw stl znc b18.6.3 | 555 |
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| Ababa | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | 1/4-20 x 4 p-flat m/s s/s b18.6.3 | 25 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 p-flat m/s stl znc b18.6.3 | 550 |
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| Ababa | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | 1/4-20 x 4 p-pan m/s s/s b18.6.3 | 50 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 p-pan m/s stl znc b18.6.3 | 359 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 s-rnd m/s stl znc b18.6.3 | 300 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | 5/16-18 x 4 s-rnd m/s stl znc b18.6.3 | 57 |
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| Ababa | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 4 | 3/8-16 x 4 p-pan mach screw s/s b18.6.3 | 215 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | 3/8-16 x 4 | 3/8-16 x 4 s-rnd m/s stl znc b18.6.3 | 200 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | 6-32 x 4 combo rd m/s stl znc b18.6.3 | 300 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | 6-32 x 4 s-rnd m/s stl znc b18.6.3 | 1500 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | #8-32 x 4 | 8-32 x 4 combo rd m/s stl znc b18.6.3 | 800 |
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| Ababa | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 4 | 8-32 x 4 p-pan m-scr s/s b18.6.3 | 24 |
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| Ababa | CA | Machine Screw | Steel | Zinc/Clear | #8-32 x 4 | 8-32 x 4 phil-pan mach screw stl znc b18.6.3 | 168 |
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| Exim | S'pore | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | #1/2-13 x 4 | screw round head square necks/s 18-8 passivated#1/2-13 x 4 in b18.6.3 | 10 |
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| Exim | S'pore | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | t6 2 x 4 | screw pan head t-6s/s passivatedm2 x 4 mm b18.6.3 | 26443 |
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| Exim | S'pore | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | t10 3 x 4 | screw pan head t-10s/s passivated m3 x 4 mm b18.6.3 | 5426 |
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| SII | IN | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | #6-32 x 4 phillips drive pan head zinc finish steel machine screw b18.6.3 | 881 |
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| QFC | TX | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20x4 phil pan m/s zinc b18.6.3 | 400 |
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| QFC | TX | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | 10-24x4 round mach screw zinc b18.6.3 | 568 |
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| QFC | TX | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | 6-32x4 phil flat m/s zinc b18.6.3 | 452 |
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| B & K FAST | PA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 phil flat machine screws zinc b18.6.3 | 667 |
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| B & K FAST | PA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | 5/16-18 x 4 phil flat machine screws zinc b18.6.3 | 200 |
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| B & K FAST | PA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 slotted flat machine screws zinc b18.6.3 | 779 |
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| B & K FAST | PA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | 5/16-18 x 4 slotted flat machine screws zinc b18.6.3 | 189 |
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| B & K FAST | PA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 phil pan machine screws zinc b18.6.3 | 1614 |
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| B & K FAST | PA | Machine Screw | Steel | Plain | #8-32 x 4 | 8/32 x 4 slotted round machine screw pln b18.6.3 | 21 |
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| B & K FAST | PA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 slotted round machine screws zinc b18.6.3 | 3879 |
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| B & K FAST | PA | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | 10/24 x 4 phil truss machine screws zinc b18.6.3 | 62 |
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| B & K FAST | PA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #14 x 4 | #14 x 4 slotted hwh s m s 18-8 stainless b18.6.3 | 494 |
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| B & K FAST | PA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10 x 4 | #10 x 4 phil pan s m s 18-8 stainless b18.6.3 | 42 |
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| B & K FAST | PA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | 1/4-20 x 4 phil flat machine screws 18-8 ss b18.6.3 | 21 |
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| B & K FAST | PA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | 1/4-20 x 4 slotted round machine screws 18-8 ss b18.6.3 | 303 |
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| General F | MI | Machine Screw | Steel | Zinc/Clear | #8-32 x 4 | 8-32 x 4 pn phil ms full thread zn b18.6.3 | 350 |
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| OSSCO | RI | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | 10-24x4 phil round m/s plated b18.6.3 | 50 |
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| OSSCO | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 4 | 10-24x4 slotted round m/s 18-8 304 b18.6.3 | 11 |
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| OSSCO | RI | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20x4 phil round m/s plated b18.6.3 | 100 |
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| OSSCO | RI | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 4 | 1/2-13x4 slotted round m/s plated b18.6.3 | 2 |
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| OSSCO | RI | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | 6-32x4 slotted flat m/s plated b18.6.3 | 1,380 |
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| QFC | TX | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20x4 slotted flat m/s zinc b18.6.3 | 128 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | slotted round m/s b18.6.3 | 762 |
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| THRDFAST | FL | Machine Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 4 | 316 ss slotted truss m/s b18.6.3 | 975 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | slotted round m/s b18.6.3 | 440 |
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| THRDFAST | FL | Machine Screw | Brass | Plain | 1/4-20 x 4 | slotted round m/s b18.6.3 | 97 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 4 | 18-8 ss phil round m/s b18.6.3 | 48 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 4 | 18-8 ss slotted round m/s b18.6.3 | 22 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 4 | slotted flat m/s b18.6.3 | 20 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | phil pan m/s b18.6.3 | 20 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 4 | slotted round m/s b18.6.3 | 13 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 | 18-8 ss slotted round m/s b18.6.3 | 8 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 3/8-16 x 4 | slotted flat m/s b18.6.3 | 8 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | phil flat mach b18.6.3 | 2,200 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 3/8-16 x 4 | phil round m/s b18.6.3 | 365 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | slotted truss m/s b18.6.3 | 52 |
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| THRDFAST | TN | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | combo round m/s b18.6.3 | 200 |
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| THRDFAST | TN | Machine Screw | Steel | Zinc/Clear | #6-32 x 4 | combo round m/s b18.6.3 | 100 |
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| THRDFAST | TN | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | slotted round m/s b18.6.3 | 50 |
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| THRDFAST | TN | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | phil pan m/s b18.6.3 | 50 |
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| THRDFAST | MS | Machine Screw | Steel | Zinc/Clear | 3/8-16 x 4 | slotted round m/s b18.6.3 | 10 |
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| THRDFAST | MS | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | slotted round m/s b18.6.3 | 51 |
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| KBS | TN | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | 10-24 x 4 rh sq soc m/s pltd b18.6.3 | 3,600 |
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| KBS | TN | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 phil pan m/s pltd b18.6.3 | 21,796 |
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| KBS | TN | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | 1/4-20 x 4 phil oval m/s s/s b18.6.3 | 29,903 |
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| KBS | TN | Machine Screw | Steel | Zinc/Black | #6-32 x 4 | 6-32 x 4 slotted flat m/s black ox black zinc b18.6.3 | 600 |
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| KBS | TN | Machine Screw | Steel | Zinc/Clear | 3/8-16 x 4 | 3/8-16 x 4 slotted flat m/s plated b18.6.3 | 2,679 |
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| THRDFAST | AL | Machine Screw | Brass | Plain | #10-24 x 4 | slotted round m/s b18.6.3 | 37 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | slotted flat m/s b18.6.3 | 80 |
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| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | 18-8 ss slotted flat m/s b18.6.3 | 13 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | slotted round m/s b18.6.3 | 9 |
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| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 4 | 18-8 ss phil round m/s b18.6.3 | 6 |
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| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 4 | 18-8 ss slotted flat m/s b18.6.3 | 14 |
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| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 4 | 18-8 ss phil oval m/s b18.6.3 | 17 |
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| THRDFAST | AL | Machine Screw | 316, 317, A4 Stainless | Plain | 3/8-16 x 4 | t-316 ss slotted flat m/s b18.6.3 | 3 |
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| WSB | KY | Machine Screw | Steel | Zinc/Clear | #10-24 x 4 | e/screw ms rd st (zn) h+sz 10-24x4 b18.6.3 | 24,219 |
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| All Size | TX | Machine Screw | Steel | Plain | #10-24 x 4 | 10-24 x 4 truss combo machine screw b18.6.3 | 500 |
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| All Size | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | 5/16-18 x 4 flat phillip machine screw zinc b18.6.3 | 290 |
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| FACCA | Ont | Machine Screw | Grade 5 | Zinc/Clear | #6-32 x 4 | machine screw binding slot head #6-32 unc x 4 lg low carbon steel zinc plated ansi b18.6.3-1972 b18.6.3 | 75,760 |
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