5/16-18 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.
201,904 Machine Screw, showing 200, (click on any line for more information)
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Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
ISSCO | MO | Machine Screw | Steel | Plain | 5/16-18 x 1 1/2 | slotted round | 3100 |
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ISSCO | MO | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 | slotted round | 680 |
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ISSCO | MO | Machine Screw | Steel | Plain | 5/16-18 x 1/2 | slotted fillister | 1800 |
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ISSCO | MO | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | slotted round 18-8 stainless | 357 |
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Cal Fastenrs | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | 5/16-18x1 1/4 phillips oval m/s 18-8 304 steel phil oval | 50 |
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NAPPCO | TX | Machine Screw | Steel | Black Oxide | 5/16-18 x 1 1/4 | phil truss m/s stl blackox 5/16-18x1-1/4 | 5784 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | phil truss m/s stlzincplt 5/16-18x1-1/2 | 4854 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | phil pan m/s steelzincpltd 5/16-18x1-3/4 | 4773 |
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NAPPCO | TX | Machine Screw | Steel | Black Oxide | 5/16-18 x 5/8 | phil truss m/s stl blackox 5/16-18x5/8 | 1390 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 | 5/16-18 x 2 phil/pan ms rohs | 1572 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | phil truss m/s steelzincplt 5/16-18x1 | 6000 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | phil truss m/s stl zincplt 5/16-18x1-1/4 | 1400 |
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NAPPCO | TX | Machine Screw | Steel | Plain | 5/16-18 x 1/2 | phil truss m/s steel 5/16-18x1/2 black | 1890 |
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NAPPCO | TX | Machine Screw | Steel | Black Oxide | 5/16-18 x 3/4 | phil truss m/s steel blackox 5/16-18x3/4 | 1076 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | phil pan m/s steelzincpltd 5/16-18x1-1/2 | 670 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/8 | fillslotted m/s stlzincplt 5/16-18x3/8 | 1934 |
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NAPPCO | TX | Machine Screw | Steel | Black Oxide | 5/16-18 x 1 1/2 | phil truss m/s stl blackox 5/16-18x1-1/2 | 1200 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | fillslotted m/s stl zinc plt 5/16-18x1 | 1148 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 5/8 | phil flat m/s steelzincpltd 5/16-18x5/8 | 660 |
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NAPPCO | TX | Machine Screw | Steel | Plain | 5/16-18 x 1 | button hd hex soc m/s stl 5/16-18x1 | 565 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | trussslotm/s steelzincpltd 5/16-18x3/4 | 1600 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | phil truss m/s steelzincplt 5/16-18x3/4 | 1025 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 | flat slotted m/s stl zine pltd 5/16-18x2 | 119 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | phil truss m/s steelzincplt 5/16-18x1/2 | 2000 |
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NAPPCO | TX | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | phil pan m/s steelzincpltd 5/16-18x3/4 | 10857 |
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MESAFAST | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | phil truss 18-8 s/s | 100.0 |
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UNEEDA | NJ | Machine Screw | Steel | Plain | 5/16-18 x 3/4 | slotted round m/s | 300 |
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UNEEDA | NJ | Machine Screw | Steel | Plain | 5/16-18 x 1/2 | slotted round m/s | 900 |
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UNEEDA | NJ | Machine Screw | Steel | Plain | 5/16-18 x 5/8 | phil flat m/s | 2170 |
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UNEEDA | NJ | Machine Screw | Steel | Plain | 5/16-18 x 3/4 | slotted fill m/s | 1200 |
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UNEEDA | NJ | Machine Screw | Steel | Plain | 5/16-18 x 1/2 | slotted flat m/s | 1250 |
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UNEEDA | NJ | Machine Screw | Steel | Plain | 5/16-18 x 3/4 | slotted flat m/s | 600 |
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UNEEDA | NJ | Machine Screw | Steel | Plain | 5/16-18 x 3/4 | phil pan m/s | 2188 |
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Liberty | IL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | 5/16-18x1/2 phillips truss head machine screw zinc | 2,950 |
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Liberty | IL | Machine Screw | Ni-Cu Alloy (Monel, K-Monel, etc.) | Plain | 5/16-18 x 1 1/8 | 5/16-18x1-1/8 slotted flat head machine screw monel qq-n-281d with nylock pellet | 4 |
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Liberty | IL | Machine Screw | Steel | Plain | 5/16-18 x 2 3/16 | 5/16-18x2-3/16 slotted fillister machine screw mn 400 | 400 |
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American | NY | Machine Screw | Brass | Plain | 5/16-18 x 7/8 | slotted flat | 140 |
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American | NY | Machine Screw | Brass | Plain | 5/16-18 x 3/4 | slotted fillister | 150 |
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American | NY | Machine Screw | Brass | Nickel Plated | 5/16-18 x 7/8 | slotted flat 100 | 300 |
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American | NY | Machine Screw | Brass | Plain | 5/16-18 x 1 1/4 | hex cap | 173 |
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American | NY | Machine Screw | Brass | Cadmium | 5/16-18 x 1 1/4 | slotted round cad pl | 250 |
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American | NY | Machine Screw | Brass | Nickel Plated | 5/16-18 x 1 1/4 | slotted round pl | 44 |
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American | NY | Machine Screw | Brass | Plain | 5/16-18 x 1.00 | hex | 300 |
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American | NY | Machine Screw | Brass | Plain | 5/16-18 x 4 3/4 | slotted round full thr | 300 |
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American | NY | Machine Screw | Brass | Plain | 5/16-18 x 1 1/2 | hex cap | 32 |
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American | NY | Machine Screw | Brass | Nickel Plated | 5/16-18 x 2 3/4 | he cap pl | 100 |
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American | NY | Machine Screw | Steel | Plain | 5/16-18 x 1/2 | unslotted hex black | 400 |
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American | NY | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | slotted round pl | 680 |
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American | NY | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 5/8 | indented hex zp | 2000 |
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American | NY | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 5/8 | slotted round pl | 3400 |
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American | NY | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 5/8 | slotted flat zp | 300 |
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American | NY | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | unslotted hex zp | 2150 |
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American | NY | Machine Screw | Steel | Cadmium | 5/16-18 x 3/4 | slotted round cad pl | 89 |
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American | NY | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 7/8 | slotted flat pl | 75 |
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American | NY | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | phillips pan plate | 675 |
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American | NY | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | phillips flat zp | 2300 |
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Mansco | MI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18x1 flat phil m/s znc w/nyl patch | 26500 |
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Mansco | MI | Machine Screw | Steel | Black Oxide | 5/16-18 x 1 1/4 | 5/16-18x1-1/4 pan phil m/s blk ox w/nyl patch | 3814 |
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Mansco | MI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/8 | 5/16-18x3/8 indented hex unslotted m/s triv znc | 4000 |
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Mansco | MI | Machine Screw | Steel | Black Oxide | 5/16-18 x 3/4 | 5/16-18x3/4 pan phil m/s blk ox w/nd593s blue microspheres patch | 1500 |
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Mansco | MI | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 6 | 5/16-18x6 flat phil m/s triv znc | 350 |
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IRF | NJ | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 4 | phil flat m/s | 100 |
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IRF | NC | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 | slotted round m/s stl | 3,094 |
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IRF | NC | Machine Screw | Steel | Plain | 5/16-18 x 1/2 | slotted indented hex m/s type-f cad & clear | 960 |
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BAYFASTCO | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | slotted round head machine sc | 1796 |
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BAYFASTCO | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 6 | slotted round head | 1000 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | slotted indented hex ms | 1915 |
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OBRIEN | OH | Machine Screw | Steel | Plain | 5/16-18 x 7/8 | slotted round m/s | 400 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | phillips pan m/s | 285 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | slotted truss ms | 1700 |
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OBRIEN | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1/2 | phillips flat ms 18-8 304 undercut | 100 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | slotted flat m/s | 100 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 | phillips flat m/s | 100 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | phillips pan ms | 1190 |
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OBRIEN | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | phillips flat m/s 18-8 304 | 96 |
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OBRIEN | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | ms flat slotted 18-8 304 | 74 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | slotted hex m/s | 75 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | phillips flat undercut m/s | 46 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 5 | slotted flat m/s | 14 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | slotted hex m/s | 820 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | phillips flat ms | 235 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 1/2 | phillips flat m/s | 700 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | slotted round ms | 700 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | phillips flat m/s | 514 |
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OBRIEN | OH | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | slotted flat | 520 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | 18-8 ss phil round m/s b18.6.3 | 8 |
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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 | Brass | Plain | 5/16-18 x 1 | slotted flat m/s b18.6.3 | 8 |
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THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | phil flat m/s b18.6.3 | 5 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | 18-8 ss phil pan m/s b18.6.3 | 4 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/4 | 18-8 ss slotted flat m/s b18.6.3 | 4 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | 18-8 ss slotted flat m/s b18.6.3 | 3 |
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THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | phil flat m/s b18.6.3 | 2 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | 18-8 ss slotted round m/s b18.6.3 | 1 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | 18-8 ss slotted pan m/s b18.6.3 | 1 |
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THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | phil truss m/s b18.6.3 | 1,935 |
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THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 | phil truss m/s b18.6.3 | 750 |
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THRDFAST | FL | Machine Screw | Steel | Plain | 5/16-18 x 1 1/2 | slotted hex washer m/s b18.6.3 | 624 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | 18-8 ss phil flat m/s b18.6.3 | 60 |
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THRDFAST | FL | Machine Screw | Steel | Plain | 5/16-18 x 1 | unslotted hex washer m/s b18.6.3 | 50 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 | 18-8 ss phil oval m/s b18.6.3 | 18 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | 18-8 ss phil flat m/s b18.6.3 | 14 |
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THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 6 | 18-8 ss phil flat m/s b18.6.3 | 6 |
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THRDFAST | OK | Machine Screw | Steel | Plain | 5/16-18 x 1 1/2 | slotted hex washer m/s b18.6.3 | 100 |
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THRDFAST | OK | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | slotted flat m/s b18.6.3 | 90 |
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GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | PHILLIPS PAN | 155 |
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GUIDON | NJ | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | SLOTTED PAN | 52 |
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GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | TRUSS PHILLIPS | 1,125 |
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GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3/4 | SLOTTED TRUSS | 500 |
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GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | SLOTTED TRUSS | 2,400 |
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GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | SLOTTED TRUSS | 1,204 |
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GUIDON | NJ | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1/2 | SLOTTED ROUND | 100 |
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GUIDON | NJ | Machine Screw | Brass | Plain | 5/16-18 x 1 | SLOTTED ROUND | 200 |
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GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | SLOTTED ROUND | 440 |
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GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 2 1/4 | SLOTTED ROUND | 1,300 |
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GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 5/16-18 x 3 | SLOTTED ROUND | 100 |
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Lightning | LA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | oval phillips m/s 18-8-ss | 125 |
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Lightning | LA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | oval phillips m/s 18-8-ss | 146 |
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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 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | phil flat ms 18-8 ss | 2,399 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | phil flat ms 18-8 ss | 2,755 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 | phil flat ms 18-8 ss | 1,275 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | phil flat ms 18-8 ss | 2,903 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | phil flat ms 18-8 ss | 5,354 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1/2 | phil flat ms 18-8ss | 92 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 3/4 | phil flat ms 18-8 ss | 10,345 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | phil flat ms 18-8 ss | 2,387 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 5/8 | phil flat ms 18-8 ss | 50 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | phil flat ms 18-8 ss | 3,900 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 | phil flat ms 18-8 ss | 1,619 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 | phil pan ms 18-8 ss | 10 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | phil pan ms 18-8 ss | 25 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 | phil pan ms 18-8 ss | 40 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | phil pan ms 18-8 ss | 110 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/2 | phil pan ms 18-8 ss | 135 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | phil pan ms 18-8 ss | 50 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | phil pan ms 18-8 ss | 528 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | phil pan ms 18-8 ss | 190 |
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SeattleNB | WA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 3/4 | phil pan ms 18-8 ss | 50 |
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