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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 are usually referred to a machine bolts.
No results , but 200 less specific items displayed.
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty |
|---|---|---|---|---|---|---|---|
| Search results presented by ISSCO, Inc., your source for Machine Screws. For more results, visit isscoinc.com | |||||||
| Mansco | MI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/8 | indented hex unslotted m/s triv znc | 4,390 |
| KL Sales | WI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | phillips pan m/s stl znc | 76 |
| Northern | MN | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | 5/16-18x1/2 m/s round sl pk zc | 26 |
| Northern | MN | Machine Screw | Steel | Black Oxide | 5/16-18 x 1/2 | 5/16-18x1/2 m/s truss ph black rie4037a | 968 |
| Mansco | MI | Machine Screw | Steel | Zinc/Black | 5/16-18 x 1/2 | pan phil m/s blk znc | 1,000 |
| Cal Fastenrs | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1/2 | 5/16-18 x 1/2 phil flat undercut m/s stainless steel phil flt u-cut | 1,000 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | 5/16-18 x 1/2 phillips pan head machine screw fully threaded steel trivalent zinc rohs compliant | 12,500 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 1/2 | 5/16 - 18 x 1/2 slotted truss head machine screw serrated spcl gr5 j429 carburized znyel | 13644 |
| Trinity | IA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | 5/16 - 18 x 1/2 slotted truss head machine screw low carbon steel znclr | 11800 |
| GLF | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | slotted flat m/s zc | 100 |
| Olander | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1/2 | 5/16-18 x 1/2 slot flat u/c sst rohs | 317 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | phil flat | 200 |
| SWACO | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | 5/16-18 x 1/2 ph pn ms stl zi | 700 |
| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1/2 | 18-8 ss slotted flat m/s b18.6.3 | 16 |
| AFI | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | 5/16-18x1/2 phil truss ms st zn rohs | 3500 |
| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1/2 | slotted fillister m/s 18-8 s/s | 93 |
| KL Sales | WI | Machine Screw | Steel | Zinc/Black | 5/16-18 x 5/8 | phil truss m/s stl blk zn | 390 |
| Spencer | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 5/8 | 5/16-18 x 5/8 steel ind hex slotted m/s zinc | 2400 |
| Spencer | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 5/8 | indented hex slotted m/s | 2400 |
| Mansco | MI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 5/8 | pan phil m/s triv znc | 15,725 |
| Mansco | MI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 5/8 | 5/16-18x5/8 truss phil m/s triv znc w/blue nylok patch | 1,200 |
| Trinity | IA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 5/8 | 5/16 - 18 x 5/8 slotted round head machine screw 18 - 8 ss plain | 221 |
| Trinity | IA | Machine Screw | Steel | Zinc/Yellow | 5/16-24 x 5/8 | 5/16 - 24 x 5/8 ansi c/r truss head machine screw low carbon steel znyel | 2471 |
| EFSCO | OR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 5/8 | slotted flat 18-8 s/s | 68 |
| EFSCO | OR | Machine Screw | Brass | Plain | 5/16-18 x 3/4 | 5/16-18 x 3/4 brass flat slot mach scr pl | 32 |
| EFSCO | OR | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3/4 | 5/16-18 x 3/4 machine screw round slot zb | 41 |
| SOLUTION | OH | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3/4 | 5/16-18x3/4 phil truss m/s zinc w/olive drab black dye packaged 1 250 per | 11,966 |
| SOLUTION | OH | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3/4 | 5/16-18x3/4 phil truss m/s zinc w/olive drab black dye packaged 1 250 per | 11,966 |
| Kanebridge | IL | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3/4 | 5/16-18x3/4 phillips truss ms f/t blk zinc blk zinc | 37.500 |
| Kanebridge | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18x3/4 phillips truss serrate f/t ms zinc | 37.500 |
| Mansco | MI | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3/4 | pan phil m/s triv blk znc | 9,550 |
| Mansco | MI | Machine Screw | Steel | Black Oxide | 5/16-18 x 3/4 | pan phil m/s & wax | 24,910 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18 x 3/4 phillips pan head machine screw fully threaded steel trivalent zinc rohs compliant | 7,200 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18 x 3/4 phillips truss head machine screw fully threaded steel trivalent zinc rohs compliant | 41,008 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18 x 3/4 unslotted indented hex head machine screw fully threaded steel trivalent zinc rohs compliant | 11500 |
| Trinity | IA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | 5/16 - 18 x 3/4 slotted flat head machine screw low carbon steel zinc trivalent clear | 49 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 3/4 | 5/16 - 18 x 3/4 slotted truss head machine screw serrated spcl gr5 j429 carburized znyel / hvof coating | 338 |
| Trinity | IA | Machine Screw | Steel | Zinc/Yellow | 5/16-18 x 3/4 | 5/16 - 18 x 3/4 c/r pan head machine screw low carbon steel znyel | 496 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 3/4 | 5/16 - 18 x 3/4 c/r truss head machine screw serrated spcl gr5 j429 carburized znyel | 15077 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 3/4 | 5/16 - 18 x 3/4 slotted truss head machine screw serrated spcl gr5 j429 carburized znyel | 10814 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | slotted round | 2245 |
| AFI | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | 5/16-18x3/4 phil truss ms ss | 700 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | slotted flat 18-8 ss | 152 |
| Hodell | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | fill slotted m/s zn | 115 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | phil oval 18-8 ss | 96 |
| Valley Nu | WA | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3/4 | nc pan phil zb | 1066 |
| Timberline | CO | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | phl tr m/s ss 5/16-18 x 3/4 | 1000 |
| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | slotted flat m/s 18-8 s/s | 149 |
| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | phil flat m/s b18.6.3 | 28 |
| GLF | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | slotted flat m/s zc | 84 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | slotted round 18-8 ss | 175 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | phil truss 18-8 ss | 283 |
| GLF | OH | Machine Screw | Brass | Plain | 5/16-18 x 3/4 | slotted flat m/s brs | 38 |
| Hewes | NY | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | 5/16-18x 3/4 slt fillister | 6400 |
| Timberline | CO | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3/4 | phl fl m/s bz 5/16-18 x 3/4 | 1400 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | phil flat 18-8 ss | 30 |
| GLF | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | slotted round m/s zc | 150 |
| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | 18-8 ss slotted round m/s b18.6.3 | 35 |
| SBS | MA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | phil truss m/s | |
| AIH | AZ | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 7/8 | 5/16-18 x 7/8 phil pan m/s s/s pass 304ss MS51957-97 | 450 |
| MTP | CA | Machine Screw | Grade 8 | Chrome | 5/16-18 x 7/8 | 5/16-18 x 7/8 gr.8 polished chrome torx pan head t-30 a bb 200 fb 1000 qk 5000 t40 colony machine 71.00/c | 1,873 |
| MTP | CA | Machine Screw | Steel | Plain | 5/16-18 x 7/8 | 5/16-18 x 7/8 st/zn phil pan hd machine screws | 1,250 |
| Trinity | IA | Machine Screw | Steel | Zinc/Yellow | 5/16-24 x 7/8 | 5/16 - 24 x 7/8 c/r truss head machine screw dog point low carbon steel case hdnd znyel | 54 |
| KL Sales | WI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | phillips pan m/s stl znc | 69 |
| KL Sales | WI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | phillips flat m/s stl znc | 80 |
| EFSCO | OR | Machine Screw | Steel | Plain | 5/16-18 x 1 | 5/16-18 x 1 slotted truss head machine screw | 21 |
| EFSCO | OR | Machine Screw | Steel | Zinc/Black | 5/16-18 x 1 | 5/16-18 x 1 machine screw pan slotted zb | 9 |
| SOLUTION | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18x1 6-lobe flat head m/s rohs/zinc/compliant (trivalent) | 500 |
| SOLUTION | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18x1 slot fillister m/s (ft) rohs/zinc/compliant w/vc3 vibratite | 1,967 |
| Kanebridge | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18x1 phillips truss serrate f/t ms zinc | 31.250 |
| Mansco | MI | Machine Screw | Steel | Zinc/Black | 5/16-18 x 1 | pan phil m/s triv blk znc | 19,782 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 phillips flat head machine screw fully threaded steel trivalent zinc rohs compliant | 13,560 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 combo (phil/slot) round head machine screw fully threaded steel trivalent zinc rohs compliant | 12360 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 unslotted indented hex washer head machine screw fully threaded steel trivalent zinc rohs compliant | 12280 |
| GUIDON | NJ | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | SLOTTED ROUND HEAD | 3,600 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 | 5/16 - 18 x 1 slotted truss head machine screw serrated spcl gr5 j429 carburized znclr | 899 |
| Trinity | IA | Machine Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1 | 5/16 - 18 x 1 slotted truss head machine screw serrated sae gr 8 j429 znyel | 447 |
| Trinity | IA | Machine Screw | Steel | Zinc/Yellow | 5/16-18 x 1 | 5/16 - 18 x 1 c/r pan head machine screw low carbon steel znyel | 1638 |
| Trinity | IA | Machine Screw | Steel | Zinc/Yellow | 5/16-18 x 1 | 5/16 - 18 x 1 c/r flat head machine screw low carbon steel znyel | 1796 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 1 | 5/16 - 18 x 1 c/r truss head machine screw serrated spcl gr5 j429 carburized znyel | 60351 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 1 | 5/16 - 18 x 1 slotted truss head machine screw serrated spcl gr5 j429 carburized znyel | 33280 |
| Timberline | CO | Machine Screw | Steel | Zinc/Black | 5/16-18 x 1 | phl tr m/s bz 5/16-18 x 1 | 34000 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | phil flat | 804 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | phil pan | 852 |
| Valley Nu | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | nc 18-8 ss truss slotted | 8 |
| Mansco | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | pan phil m/s 18-8 s/s | 103 |
| Olander | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | 5/16-18 x 1 slot flat sst rohs | 140 |
| Mansco | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | truss phil m/s 18-8 s/s | 250 |
| Hodell | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | phil pan m/s | 508 |
| Timberline | CO | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | phl tr m/s ss 5/16-18 x 1 | 100 |
| GLF | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | slotted pan m/s zc | 44 |
| Valley Nu | WA | Machine Screw | Steel | Zinc/Black | 5/16-18 x 1 | nc flat slotted zb | 387 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | slotted round 18-8 ss | 111 |
| AFI | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18x1 slt flat ms st zn | 1164 |
| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | phil flat m/s 18-8 s/s | 80 |
| Ababa | CA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 slot flat machine screw steel zinc | 500 |
| GLF | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | slotted flat m/s zc | 330 |
| Weaver | WA | Machine Screw | Brass | Plain | 5/16-18 x 1 | slotted round | 15 |
| KL Sales | WI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | slotted flat m/s stl znc | 100 |
| EFSCO | OR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 round head slotted machine screw 18-8 | 107 |
| EFSCO | OR | Machine Screw | Steel | Zinc/Black | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 machine screw round slot zb | 177 |
| Mansco | MI | Machine Screw | Steel | Black Oxide | 5/16-24 x 1 1/4 | flat phil m/s & wax | 1,000 |
| Northern | MN | Machine Screw | Steel | Black Oxide | 5/16-18 x 1 1/4 | 5/16-18x1-1/4 m/s flatat 6-lobe torx drive black rie4037a | 522 |
| Northern | MN | Machine Screw | Grade 5 | Black Oxide | 5/16-18 x 1 1/4 | 5/16-18x1-1/4 gr5 m/s trussuss 6-lobe torx drive black rie4037a | 1404 |
| Cal Fastenrs | CA | Machine Screw | Steel | Zinc/Clear | 5/16-24 x 1 1/4 | phil flat m/s i | 10,390 |
| Cal Fastenrs | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 phillip truss m/s stainless steel phil truss m/s | 590 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18 x 1-1/4 combo (phil/slot) round head machine screw fully threaded steel trivalent zinc rohs compliant | 11900 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18 x 1-1/4 slotted indented hex washer head machine screw fully threaded steel trivalent zinc rohs compliant | 10000 |
| Trinity | IA | Machine Screw | Steel | Zinc/Yellow | 5/16-24 x 1 1/4 | 5/16 - 24 x 1 1/4 slotted truss head machine screw low carbon steel znyel | 19 |
| Trinity | IA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | 5/16 - 18 x 1 1/4 slotted round head machine screw 18 - 8 ss plain | 195 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 1 1/4 | 5/16 - 18 x 1 1/4 slotted truss head machine screw serrated spcl gr5 j429 carburized znyel | 68352 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16 - 18 x 1 1/4 slotted truss head machine screw serrated spcl gr5 j429 carburized znclr | 52344 |
| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | 18-8 ss slotted fillister m/s b18.6.3 | 504 |
| Valley Nu | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | nc 18-8 ss flat slotted | 35 |
| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | 18-8 ss slotted round m/s b18.6.3 | 16 |
| EFSCO | OR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | phillips oval 18-8 s/s | 585 |
| Komar | MO | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | slotted truss | 800 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | phil flat 18-8 ss | 161 |
| AFI | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18x1-1/4 slt flat ms st zn | 900 |
| Weaver | WA | Machine Screw | Brass | Plain | 5/16-18 x 1 1/4 | slotted flat | 40 |
| Valley Nu | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | nc 18-8 ss round slotted | 67 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | slotted round 18-8 ss | 341 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | slotted round | 490 |
| EFSCO | OR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 phillips flat head machine screw 18-8 stainless | 1 |
| EFSCO | OR | Machine Screw | Steel | Zinc/Black | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 machine screw filliter slot zb | 180 |
| Alma Bolt | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | st. st. pan phillips | 473 |
| Trinity | IA | Machine Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 1 1/2 | 5/16 - 18 x 1 1/2 slotted truss head machine screw serrated spcl gr5 j429 carburized znyel | 978 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | slotted round | 533 |
| GLF | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | phil flat m/s zc | 50 |
| SBS | MA | Machine Screw | Steel | Black Oxide | 5/16-18 x 1 1/2 | unslotted hex washer m/s blk | |
| Valley Nu | WA | Machine Screw | Steel | Zinc/Black | 5/16-18 x 1 1/2 | nc flat slotted zb | 305 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | phil flat 18-8 ss | 49 |
| Weaver | WA | Machine Screw | Brass | Plain | 5/16-18 x 1 1/2 | slotted flat | 43 |
| AFI | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | 5/16-18x1-1/2 slt rd ms st zn | 575 |
| Komar | AR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | phil flat 18-8 ss | 327 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | slotted round 18-8 ss | 438 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | phil flat | 295 |
| Alma Bolt | MI | Machine Screw | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 pan phillips machine screw | 1014 |
| Valley Nu | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | nc 18-8 ss flat slotted | 64 |
| EFSCO | OR | Machine Screw | Steel | Zinc/Black | 5/16-18 x 1 3/4 | 5/16-18 x 1 3/4 machine screw round slot zb | 66 |
| GLF | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | slotted round m/s zc | 1682 |
| AFI | FL | Machine Screw | Brass | Plain | 5/16-18 x 1 3/4 | 5/16-18x1-3/4 hex machine screw brass | 200 |
| Weaver | WA | Machine Screw | Brass | Plain | 5/16-18 x 1 3/4 | slotted flat | 500 |
| KL Sales | WI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 | phil truss m/s stl znc | 59 |
| EFSCO | OR | Machine Screw | Brass | Plain | 5/16-18 x 2 | 5/16-18 x 2 brass round slot mach scr pl | 20 |
| AIH | AZ | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | 5/16-18 x 2 | 100 deg flat countersunk m/s s/s black ox MS24693-120B | 5 |
| Kanebridge | IL | Machine Screw | Steel | Zinc/Black | 5/16-18 x 2 | 5/16-18x2 phillips pan full/thrd ms blk zinc | 20,000 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 | 5/16-18 x 2 unslotted indented hex head machine screw fully threaded steel trivalent zinc rohs compliant | 10000 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 | 5/16-18 x 2 slotted truss head machine screw fully threaded steel trivalent zinc rohs compliant | 10000 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 | 5/16-18 x 2 slotted indented hex washer head machine screw fully threaded steel trivalent zinc rohs compliant | 10000 |
| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 | 18-8 ss phil flat m/s b18.6.3 | 125 |
| GLF | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 | slotted round m/s zc | 100 |
| Lightning | LA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 | oval phillips m/s 18-8-ss | 50 |
| EFSCO | OR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/4 | 5/16-18 x 2 1/4 round head slotted machine screw 18-8 | 49 |
| FTS | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/4 | fill slotted ms 18-8 ss | 4,034 |
| FTS | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/4 | fillister slotted 18-8ss | 4,034 |
| FTS | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/4 | rd slotted ms stl zn | 3500 |
| EFSCO | OR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/2 | 5/16-18 x 2 1/2 round head slotted machine screw 18-8 | 631 |
| EFSCO | OR | Machine Screw | Brass | Plain | 5/16-18 x 2 1/2 | 5/16-18 x 2 1/2 brass flat slot mach scr pl | 16 |
| Kanebridge | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | 5/16-18x2 1/2 unslt indnt hex was f/t ms zinc | 12.500 |
| KL Sales | WI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/2 | 5/16-18 x 2-1/2 phillips flat m/s 18-8/a2 | 166 |
| GLF | OH | Machine Screw | Steel | Plain | 5/16-18 x 2 1/2 | slotted flat m/s | 20 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/2 | slotted flat 18-8 ss | 50 |
| THRDFAST | AL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | slotted flat m/s b18.6.3 | 11 |
| GLF | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | phil flat m/s zc | 400 |
| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/2 | 18-8 ss slotted round m/s b18.6.3 | 6 |
| Valley Nu | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/2 | nc 18-8 ss flat slotted | 1 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | phil flat | 925 |
| Empire | WA | Machine Screw | Steel | Plain | 5/16-18 x 2 3/4 | 5/16-18x 2-3/4 flat slot m/s | 100 |
| EFSCO | OR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | 5/16-18 x 3 phillips oval head machine screw 18-8 stainless | 11 |
| EFSCO | OR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | 5/16-18 x 3 round head slotted machine screw 18-8 stainless | 18 |
| EFSCO | OR | Machine Screw | Brass | Plain | 5/16-18 x 3 | 5/16-18 x 3 brass flat slot machine screw | 59 |
| EFSCO | OR | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3 | 5/16-18 x 3 machine screw round slot zb | 307 |
| Spencer | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 | truss phil m/s thread to | 1000 |
| Global | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | slotted fillister m/s 18-8 ss | 863 |
| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | phil round m/s 18-8 s/s | 50 |
| THRDFAST | MS | Machine Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 3 | t-316 ss phil flat m/s b18.6.3 | 5 |
| Komar | AR | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 | slotted round | 200 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 | slotted flat | 720 |
| Timberline | CO | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 | fl st m/s zn 5/16-18 x 3 | 275 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | slotted flat 18-8 ss | 209 |
| Alma Bolt | MI | Machine Screw | Steel | Plain | 5/16-18 x 3 | flat slotted | 3136 |
| EFSCO | OR | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3 | flat slotted zb | 345 |
| Valley Nu | WA | Machine Screw | Steel | Zinc/Black | 5/16-18 x 3 | nc flat slotted zb | 90 |
| Timberline | CO | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 | rd st m/s zn 5/16-18 x 3 | 8 |
| WDMB | IA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 1/2 | phil flat m/s | 263 |
| EFSCO | OR | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | 5/16-18 x 3 1/2 slotted flat head machine screw 18-8 stainless | 7 |
| Mansco | MI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 1/2 | flat phil m/s triv znc | 300 |
| Weaver | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | slotted flat 18-8 ss | 298 |
| THRDFAST | AL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 1/2 | slotted hex washer m/s b18.6.3 | 75 |
| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | 18-8 ss slotted round m/s b18.6.3 | 12 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 1/2 | phil flat | 7 |
| Weaver | WA | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | slotted round | 100 |
| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | slotted flat m/s b18.6.3 | 80 |
| Mansco | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 1/2 | 5/16-18x4-1/2 flat slotted m/s 18-8 s/s | 50 |
| Valley Nu | WA | Machine Screw | Steel | Zinc/Black | 5/16-18 x 4 1/2 | nc round slotted zb | 81 |
| EFSCO | OR | Machine Screw | Steel | Zinc/Black | 5/16-18 x 5 | 5/16-18 x 5 machine screw round slot zb | 1 |
| SOLUTION | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 6 | 5/16-18x6 slot round m/s zinc | 90 |
| BEACON | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 6 | 5/16-18 x 6 slotted flat head machine screw fully threaded steel trivalent zinc rohs compliant | 10000 |
| FTS | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 13 | in hex unslotted | 1,500 |
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