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1 inch length Counterbore Screws
12-point Flange Screws, Counterbore Screws, Ferry Head Cap Screws or Counterbore Screws, feature a 12 point head and a flanged bearing surface. Usually fully threaded, the 12-point design provides for higher tightening torque, without edge rounding and they are covered under ASME Standard B18.2.1
104 results, (click on any line for more information)
| Search Results Sponsored by Metric Threaded Products, Inc., your source for 12 Point Flange Screws. For more results, visit www.metric-threaded.com | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/8-16 x 1 | 3/8-16 x 1 zinc 12 point flange screws | stock |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 1/2-20 x 1 | 1/2-20x1 alloy blk 12 pt flange screws | stock |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-20 x 1 | 7/16-20x1 alloy 12 point flange bolt | stock |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 1/4-20 x 1 | 12 pt flange screw alloy | 500 |
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| Cal Fastenrs | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/2-20 x 1 | - 12-pt fl/b | 50 |
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| R&S Indus | OR | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-20 x 1 | 1/4-20 x 1 12 pt flange screw alloy steel | 5 |
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| R&S Indus | OR | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/8-11 x 1 | 5/8-11 x 1 12 pt flange screw alloy steel | 13 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/8-24 x 1 | nf ferry c/s | 35 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/2-13 x 1 | nc ferry c/s | 50 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/8-11 x 1 | nc ferry c/s | 20 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 1 | 3/8-16x1 gr8 12pt hd flange bolt plain | 200 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-24 x 1 | 3/8-24x1 gr8 12pt hd flange bolt plain | 50 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 7/16-14 x 1 | 7/16-14x1 gr8 12pt hd flange bolt plain | 100 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 7/16-20 x 1 | 7/16-20x1 gr8 12pt hd flange bolt plain | 50 |
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| Weaver | WA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 1/2-13 x 1 | 1/2-13x1 gr8 12pt hd flange bolt plain | 125 |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 1/4-20 x 1 | 1/4-20 x 1 ferry hd c/s blk | 1524 |
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| Future Fastener | TX | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Yellow | 7/16-20 x 1 | 7/16-20 x 1 ferry cap screw (yel/zinc) | 462 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/2-20 x 1 | nf ferry c/s | 15 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | nf ferry c/s | 28 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | nc ferry c/s | 64 |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-14 x 1 | nc ferry c/s | 112 |
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| Hayes | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | 3/8-24 x 1 12 pt. ctrbr screw alloy | 96 |
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| Hayes | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-20 x 1 | 7/16-20 x 1 12 pt. ctrbr screw alloy | 1 |
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| BHAM | AL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | 3/8-16x1 12 pt counterbore bolt b18.2.1 | 50 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 1/4-20 x 1 | 12 pt flange screw alloy | 500 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 5/16-18 x 1 | 12 pt flange screw alloy | 8,440 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 3/8-16 x 1 | 12 pt flange screw alloy | 9,950 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 7/16-14 x 1 | 12 pt flange screw alloy | 11,360 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 1/2-13 x 1 | 12 pt flange screw alloy | 100 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Yellow | 5/16-18 x 1 | 12 pt flange screw alloy | 25,988 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Black | 5/16-18 x 1 | 12 pt flange screw alloy | 33,190 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Yellow | 5/16-24 x 1 | 12 pt flange screw alloy | stock |
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| Jackson | MS | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | nc ferry c/s | 9 |
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| American | WI | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-20 x 1 | 7/16-20x1 nf 12 point flange bolt | 180 |
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| American | NY | 12 Point Flange Screw (CounterBore) | Steel | Cadmium | 3/8-24 x 1 | fl/b 12 pt cad pl | 400 |
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| American | NY | 12 Point Flange Screw (CounterBore) | Steel | Plain | 9/16-12 x 1 | square set screw cup point | 400 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | 5/16-18 x 1 12 point cap screw alloy b18.2.1 | 69 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-24 x 1 | 5/16-24 x 1 12 point cap screw alloy b18.2.1 | 295 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | 3/8-16 x 1 12 point cap screw alloy b18.2.1 | 44 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | 3/8-24 x 1 12 point cap screw alloy b18.2.1 | 60 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-14 x 1 | 7/16-14 x 1 12 point cap screw alloy b18.2.1 | 30 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-20 x 1 | 7/16-20 x 1 12 point cap screw alloy b18.2.1 | 129 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/2-20 x 1 | 1/2-20 x 1 12 point cap screw alloy b18.2.1 | 94 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/2-13 x 1 | 1/2-13 x 1 12 point cap screw alloy b18.2.1 | 36 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-20 x 1 | 1/4-20 x 1 12 point cap screw alloy b18.2.1 | 49 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-28 x 1 | 1/4-28 x 1 12 point cap screw alloy | 100 |
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| CIF | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-20 x 1 | 1/4-20x1 12 point flange bolt alloy plain (969) (969) (974) () | 974 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-24 x 1 | fine 12-point fl/b | 277 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-20 x 1 | coarse 12-point fl/b | 1,900 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/2-13 x 1 | coarse 12-point fl/b | 130 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | coarse 12-point fl/b | 914 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | coarse 12-point fl/b | 225 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | fine 12-point fl/b | 6 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-28 x 1 | fine 12-point fl/b | 1,443 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/8-18 x 1 | fine 12-point fl/b | 134 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-20 x 1 | fine 12-point fl/b | 125 |
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| ASMC | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-14 x 1 | coarse 12-point fl/b | 50 |
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| Olander | CA | 12 Point Flange Screw (CounterBore) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-24 x 1 | 5/16-24 x 1 12-pt bolt sst rohs si plt () () | 50 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | 5/16-18 x 1 12 point cap screw alloy b18.2.1 | 100 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-24 x 1 | 5/16-24 x 1 12 point cap screw alloy b18.2.1 | 75 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | 3/8-16 x 1 12 point cap screw alloy b18.2.1 | 140 |
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| Ababa | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | 3/8-24 x 1 12 point cap screw alloy b18.2.1 | 40 |
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| Liberty | IL | 12 Point Flange Screw (CounterBore) | Steel | Nickel Plated | 5/16-18 x 1 | 12-pt fl/b (cbore bolt) | 80 |
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| Liberty | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | 12pt fl/b (cbore bolt) | 5 |
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| Liberty | IL | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-24 x 1 | 12-pt c/s | 50 |
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| Alma Bolt | MI | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-28 x 1 | SAE 12-pt counterbore screw | 948 |
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| Alma Bolt | MI | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-20 x 1 | 12-pt counterbore screw | 588 |
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| MidStates | MI | 12 Point Flange Screw (CounterBore) | Steel | Chrome Plated | 1/4-20 x 1 | 12-pt -chrome ejot | 14 |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 3/8-16 x 1 | 3/8-16 x 1 zinc 12 point flange screws | stock |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Black Oxide | 1/2-20 x 1 | 1/2-20x1 alloy blk 12 pt flange screws | stock |
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| MTP | CA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-20 x 1 | 7/16-20x1 alloy 12 point flange bolt | stock |
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| IPC | VA | 12 Point Flange Screw (CounterBore) | Steel | Phosphate | 3/8-16 x 1 | 3/8-16x1 12 pt. flange screw gmw-3179h phos & oil must gauge 3a after plating | 791 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/2-20 x 1 | 12 pt countr-bor plain 1/2-20 x 1 (FINE THREAD) | 53 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Grade B7 | Plain | 5/8-11 x 1 | 12 pt cntr-bor grn b7 5/8-11 x 1 (XYLAN 1425 GREEN) | 60 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | 12 pt countr-bor plain 5/16-18 x 1 | 193 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | 12 pt countr-bor plain 3/8-24 x 1 (FINE THREAD) | 67 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/8-11 x 1 | 12 pt countr-bor 5/8-11x1 | 120 |
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| JET Indus | WI | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | 12pt flange bolt 3/8-24x1 plain | 100 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | 12 point counterbore screw | 518 |
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| ISSCO | MO | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-28 x 1 | 12 point counterbore screw | 2951 |
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| UltraFast | WA | 12 Point Flange Screw (CounterBore) | Steel | Zinc/Clear | 1/2-13 x 1 | double hex tork zn | inquire |
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| B & K FAST | PA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | 5/16-18 x 1 12 pt flange bolts b18.2.1 | 9 |
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| B & K FAST | PA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-24 x 1 | 5/16-24 x 1 12 pt flange bolts b18.2.1 | 54 |
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| General F | MI | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | 3/8-16 x 1 12 pt ctbr scr b18.2.1 | 529 |
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| OSSCO | RI | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 1 | 3/8-16x1 ferry ctrbore cap screw gr8 b18.2.1 | 13 |
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| OSSCO | RI | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-24 x 1 | 3/8-24x1 ferry ctrbore cap screw gr8 b18.2.1 | 50 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 5/8-11 x 1 | 12 pt lb7 xylan green 5/8-11 x 1 | 60 |
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| Delta | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | 12 pt countr-bor plain 3/8-16 x 1 | 100 |
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| Wurth Ada | MN | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-24 x 1 | scr 12pt flange alloy (pl) 5/16-24x1 | 775 |
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| OBRIEN | OH | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 5/16-18 x 1 | 12 pt flange scr gr8 black | 12 |
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| THRDFAST | AL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | 12 pt counterbore screw b18.2.1 | 340 |
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| GUIDON | NJ | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 1/4-20 x 1 | 500 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/2-20 x 1 | 1/2-20 x 1 12 point flange bolt alloy plain b18.2.1 | 30 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-14 x 1 | 7/16-14 x 1 12 point flange bolt plain b18.2.1 | 55 |
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| All Size | TX | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/8-11 x 1 | 5/8-11 x 1 12 point flange bolt plain b18.2.1 | 18 |
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| Wurth | IN | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | 3/8-16 x 1 countr-bor screw alloy | 16,600 |
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| Wurth | IN | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-18 x 1 | 5/16-18x1 countr-bor alloy | 1,948 |
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| Wurth | IN | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-20 x 1 | 1/4-20 x 1 countr-bor alloy | 3,675 |
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| FMP | MA | 12 Point Flange Screw (CounterBore) | Grade 8 | Plain | 3/8-16 x 1 | 12-point external wrenching bolt | 100 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-20 x 1 | nc 12 pt fl/b pl | 110 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-14 x 1 | nc 12 pt fl/b pl | 4 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-16 x 1 | nc 12 pt fl/b pl | 3 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/2-13 x 1 | nc 12 pt fl/b pl | 113 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 5/16-24 x 1 | nf 12 pt fl/b pl | 17 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 1/4-28 x 1 | nf 12 pt fl/b pl | 63 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 7/16-20 x 1 | nf 12 pt fl/b pl | 50 |
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| Valley Nu | WA | 12 Point Flange Screw (CounterBore) | Steel | Plain | 3/8-24 x 1 | nf 12 pt fl/b pl | 55 |
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| ACCURATE | IL | 12 Point Flange Screw (CounterBore) | Steel | Plain | 9/16-12 x 1 | square cup pt set screw, socket | 200 |
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