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1/4-20 Machine Screws
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.
184,867 Machine Screw, showing 200, (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 | |
| ISSCO | MO | Machine Screw | Steel | Zinc/Green | 1/4-20 x 1 | slotted hex washer | 2050 |
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| ISSCO | MO | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/4 | slotted truss | 3175 |
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| ISSCO | MO | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/4 | slotted fillister | 1000 |
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| ISSCO | MO | Machine Screw | Steel | Plain | 1/4-20 x 4 | slotted flat | 1830 |
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| Buy Machine Screws from one of our FCH Network Members | ||||||||
| EASTERN SCREW | RI | Machine Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 3/4 | 1/4-20 x 3/4 combo pan 316 (phil/slot combo) | 725 |
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| EASTERN SCREW | RI | Machine Screw | Aluminum | Plain | 1/4-20 x 1 | 1/4-20 x 1 full hex alum | 1340 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20 x 1/2 indented hex 188 | 3000 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/4 | 1/4-20 x 3/4 indented hex 188 | 50040 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | 1/4-20 x 5/8 indented hex 188 7/16 across flats | 1150 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 5/8 | 1/4-20 x 2-5/8 indented hex 18-8 2 thread | 2600 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 7/8 | 1/4-20 x 1-7/8 indented hex 18-8 | 467 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/4 | 1/4-20 x 1-1/4 indented hex 18-8 | 4000 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 1/2 | 1/4-20 x 2-1/2 indented hex 18-8 | 755 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20 x 1 indented hex 18-8 | 17400 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 3/8 | 1/4-20 x 2-3/8 indented hex 188 full thread | 62 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/2 | 1/4-20 x 1-1/2 indented hex 18-8 | 5553 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/4 | 1/4-20 x 3/4 indented hex 188 7/16 across flats | 1005 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 7/8 | 1/4-20 x 7/8 indented hex 188 | 1375 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 1/4 | 1/4-20 x 2-1/4 indented hex 18-8 2 thread | 2310 |
|
| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 3/4 | 1/4-20 x 1-3/4 indented hex 18-8 | 2785 |
|
| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 3/8 | 1/4-20 x 1-3/8 indented hex 18-8 | 145 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 | 1/4-20 x 2 indented hex 18-8 | 200 |
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| EASTERN SCREW | RI | Machine Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 3/4 | 1/4-20 x 3/4 indented hex 316 dfars complaint | 280 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 9/16 | 1/4-20 x 9/16 phillips flat 100 deg 18-8 mk hd | 445 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 6-lobe flat machine screw fully threaded 18-8 stainless steel | 62.500 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 | 1/4-20x2 6-lobe flat machine screw fully threaded 18-8 stainless steel | 12.500 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | 1/4-20x5/8 6-lobe flat machine screw fully threaded 18-8 stainless steel | 50,000 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 | 1/4-20x2 6-lobe pan machine screw fully threaded 18-8 stainless steel | 12.500 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3 | 1/4-20x3 6-lobe pan machine screw fully threaded 18-8 stainless steel | 12.500 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/2 | 1/4-20x1 1/2 6-lobe pan machine screw fully threaded 18-8 stainless steel | 15.625 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 1/2 | 1/4-20x2 1/2 6-lobe pan machine screw fully threaded 18-8 stainless steel | 12.500 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 6-lobe pan machine screw fully threaded 18-8 stainless steel black oxide and oil | 25,000 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20x1 6-lobe pan machine screw fully threaded 18-8 stainless steel black oxide and oil | 25,000 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/4 | 1/4-20x3/4 6-lobe pan machine screw fully threaded 18-8 stainless steel black oxide and oil | 25,000 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 6-lobe flat undercut machine screw fully threaded 18-8 stainless steel | 25,000 |
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| Kanebridge | IL | Machine Screw | Steel | Black Oxide | 1/4-20 x 3 | 1/4-20x3 unslotted indented hex washer head machine screw fully threaded black oxide | 15,000 |
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| Kanebridge | IL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/2 | 1/4-20x1 1/2 6-lobe truss machine screw fully threaded zinc | 37.500 |
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| Kanebridge | IL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 2 | 1/4-20x2 6-lobe truss machine screw fully threaded zinc | 31.250 |
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| Kanebridge | IL | Machine Screw | Steel | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 unslotted indented hex washer head machine screw fully threaded yellow rohs | 75,000 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 6-lobe truss full contour machine screw fully threaded 18-8 stainless steel | 37.500 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/4 | 1/4-20x3/4 6-lobe truss full contour machine screw fully threaded 18-8 stainless steel | 31.250 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/8 | 1/4-20x3/8 6-lobe truss full contour machine screw fully threaded 18-8 stainless steel | 37.500 |
|
| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | 1/4-20x5/8 6-lobe truss full contour machine screw fully threaded 18-8 stainless steel | 37.500 |
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| Kanebridge | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20x1 6-lobe truss full contour machine screw fully threaded 18-8 stainless steel | 25,000 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/8 | 1/4-20 x 3/8 combo pan 18-8 phillips/sl combo | 323 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 | 1/4-20 x 2 combo pan 188 phillips/slt combo 1-1/2 thrd | 4,200 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20 x 1 hex soc fl ms 18-8 | 2,050 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20 x 1/2 indented hex 188 7/16 across flats | 3,245 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/8 | 1/4-20 x 1-1/8 phillips fl 100 marked head 18-8 | 411 |
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| EASTERN SCREW | RI | Machine Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 1 | 1/4-20 x 1 phillips fl 100 316 mk hd | 160 |
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| EASTERN SCREW | RI | Machine Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 2 1/2 | 1/4-20 x 2-1/2 phillips fl 100 316 | 154 |
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| EASTERN SCREW | RI | Machine Screw | Grade 5 | Zinc/Clear | 1/4-20 x 1 1/4 | 1/4-20 x 1-1/4 phillips flat steel grade 5 zinc plate | 130 |
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| EASTERN SCREW | RI | Machine Screw | Grade 5 | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20 x 5/8 phillips flat stl grd 5 zc | 250 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | 1/4-20 x 5/8 hex wsh 24 serrations 18-8 | 1,330 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/4 | 1/4-20 x 3/4 hex wash serrated 18-8 | 8,500 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/2 | 1/4-20 x 1-1/2 hex wsh 188 | 565 |
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| EASTERN SCREW | RI | Machine Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 1/2 | 1/4-20 x 1/2 phillips flat u/c 316 | 2,775 |
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| EASTERN SCREW | RI | Machine Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 1 3/4 | 1/4-20 x 1-3/4 phillips flat 316 | 680 |
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| EASTERN SCREW | RI | Machine Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 3/4 | 1/4-20 x 3/4 phillips flat u/c 316ss | 230 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 3/8 | 1/4-20 x 1-3/8 phillips oval 188 | 3,140 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 | 1/4-20 x 2 phillips oval 188 | 570 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/8 | 1/4-20 x 3/8 phillips flat #10 head 18-8 | 1,650 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/4 | 1/4-20 x 1-1/4 phillips flat uc 18-8 | 3,275 |
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| EASTERN SCREW | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20 x 1 phillips flat 18-8 h eader point 100 ksi | 485 |
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