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1/4 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.
167,620 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 | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 x 1 | slotted truss 18-8 | 715 |
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| ISSCO | MO | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 x 1 1/4 | phillips pan 18-8 | 940 |
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| ISSCO | MO | Machine Screw | Steel | Zinc/Clear | 1/4-28 x 2 | slotted flat | 8200 |
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| ISSCO | MO | Machine Screw | Steel | Zinc/Clear | 1/4-28 x 1/2 | slotted flat | 8800 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20x1 phil pan m/s stl zc b18.6.3 () () () | 1849,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20x1 combo pan m/s stl zc b18.6.3 () () () | 650,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20x1 phil truss m/s stl zc b18.6.3 () () () | 1957,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20x1 phil flat m/s stl zc b18.6.3 () () () | 3525,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20x1 phil round m/s stl zc b18.6.3 () () () | 653,000 |
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| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20x1 phil pan m/s 18-8 s/s b18.6.3 () () () | 2595,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20x1 slotted binding undercut m/s stl zc b18.6.3 () () () | 2405,000 |
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| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20x1 slotted round m/s 18-8 s/s b18.6.3 () () () | 9,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20x1 slotted round m/s stl zc b18.6.3 () () () | 300,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20x1 slotted truss m/s stl zc b18.6.3 () () () | 100,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20x1/2 phil flat m/s stl zc b18.6.3 () () () | 3417,000 |
|
| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 phil flat m/s 18-8 s/s b18.6.3 () () () | 1071,000 |
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| GLF | OH | Machine Screw | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 phil pan m/s 410 s/s b18.6.3 () () () | 26324,000 |
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| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 phil pan m/s 18-8 s/s b18.6.3 () () () | 996,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20x1/2 phil pan m/s stl zc b18.6.3 () () () | 863,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/2 | 1/4-20x1-1/2 phil flat m/s stl zc b18.6.3 () () () | 1732,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/2 | 1/4-20x1-1/2 phil round m/s stl zc b18.6.3 () () () | 2246,000 |
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| GLF | OH | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/2 | 1/4-20x1-1/2 phil pan m/s stl zc b18.6.3 () () () | 413,000 |
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| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/4 | 1/4-20x1-1/4 phil oval m/s 18-8 s/s b18.6.3 () () () | 425,000 |
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| GLF | OH | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/2 | 1/4-20x1-1/2 phil pan m/s 18-8 s/s b18.6.3 () () () | 746,000 |
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| Empire | WA | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20 x 5/8 flat hd phil ms zinc plated | 400 |
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| Irwin Ind | Ont | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | 1/4-20 x 3/4 ind hex wsh m/s dog pt.#10 head zinc b18.6.3 | 20550 |
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| Irwin Ind | Ont | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/8 | 1/4-20 x 3/8 ind hex wsh serr m/s zinc thru-hardened b18.6.3 | 7150 |
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| Irwin Ind | Ont | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20 x 1/2 pan phillips machine screw stainless steel b18.6.3 | 400 |
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| Irwin Ind | Ont | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 3/4 | 1/4-20 x 1-3/4 pan phillips m/screw steel zinc triv clear b18.6.3 | 6000 |
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| Irwin Ind | Ont | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20 x 1 pan phillips machine screw s/s b18.6.3 | 1137 |
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| Irwin Ind | Ont | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | 1/4-20 x 3/4 pan phil m/s zinc trivalent clear b18.6.3 | 4887 |
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| Irwin Ind | Ont | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20 x 1/2 pan phil. m/s steel zinc trivalent clear b18.6.3 | 2550 |
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| Irwin Ind | Ont | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/4 | 1/4-20 x 3/4 pan phillip machine screw 18.8 s/s b18.6.3 | 954 |
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| Irwin Ind | Ont | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20 x 1/2 fill slotted machine screw s/s b18.6.3 | 100 |
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| Irwin Ind | Ont | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20 x 1 truss phill m/screw stainless steel a2 b18.6.3 | 1000 |
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| ASMC | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/2 | coarse slotted hex washer ss18-8 b18.6.3 | 700 |
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| ASMC | IL | Machine Screw | Brass | Plain | 1/4-20 x 1/2 | coarse phil flat brs | 65 |
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| ASMC | IL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/4 | (ft) coarse phil truss ss18-8 | 291 |
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| ASMC | IL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/4 | (ft) coarse combo truss low carb zp | 287 |
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| ASMC | IL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | (ft) coarse combo truss low carb zp | 442 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | phil flat mach sc 1/4-20 x 1 | | 500 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | sltd round mach sc 1/4-20 x 1/2 | | 69 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | phil pan mach 1/4-20 x 1 1/2 | | 57 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | sltd fillister mach sc 1/4-20 x 3/8 | | 179 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | sltd flat mach sc 1/4-20 x 1 1/2 | | 42 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | phil pan mach 1/4-20 x 1/2 | | 194 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | phil flat mach sc 1/4-20 x 3/4 | | 500 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | sltd pan mach sc 1/4-20x 1/2 | | 70 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | phil flat mach 1/4-20 x 5/8 | | 500 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | phil pan mach sc 1/4-20 x 1 | | 69 |
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| Fort Dear | IL | Machine Screw | Steel | Plain | sltd round mach sc 1/4-20 x 3/4 | | 65 |
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 2 1/2 | round phillips | 30 |
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 2 1/4 | pan phillips full thread | 80 |
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3 | round slotted | 75 |
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | round slotted | 80 |
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 2 1/2 | round slotted | 55 |
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | round slotted | 32 |
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 2 1/4 | round slotted | 55 |
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | pan phillips full thread machine | 72 |
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| SunPack | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/4 | round phillips | 140 |
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| Cascade | OR | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3 | round phillips b18.6.3 | 16900 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 7/8 | phil round m/s b18.6.3 | 12,988 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/2 | phil flat m/s b18.6.3 | 9,376 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 2 1/2 | phil flat m/s b18.6.3 | 8,786 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | slotted round m/s b18.6.3 | 4,050 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | slotted flat m/s b18.6.3 | 3,260 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | slotted round m/s b18.6.3 | 3,000 |
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| THRDFAST | FL | Machine Screw | Steel | Plain | 1/4-20 x 1/2 | unslotted hex washer m/s b18.6.3 | 2,205 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/2 | phil pan m/s type-f b18.6.3 | 1,970 |
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| THRDFAST | FL | Machine Screw | Steel | Plain | 1/4-20 x 3/8 | unslotted hex washer m/s b18.6.3 | 1,778 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | phil pan m/s type-f b18.6.3 | 1,410 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 3/4 | slotted round m/s b18.6.3 | 1,300 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | 18-8 ss phil pan m/s b18.6.3 | 1,200 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 2 | phil flat m/s type-f b18.6.3 | 1,200 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | phil round m/s b18.6.3 | 1,180 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 18-8 ss slotted oval m/s b18.6.3 | 1,019 |
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| THRDFAST | FL | Machine Screw | Steel | Plain | 1/4-20 x 2 | unslotted hex washers m/s b18.6.3 | 796 |
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| GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 4 | SLOT FLAT | 448 |
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| GUIDON | NJ | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | SLOTTED FILLISTER | 100 |
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| GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | SLOTTED OVAL | 1,356 |
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| GUIDON | NJ | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/4 | SLOTTED OVAL | 400 |
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| GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 2 | SLOTTED OVAL | 200 |
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| GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | SLOT FLAT | 3,500 |
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| GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | SLOT FLAT | 1,500 |
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| GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | SLOT FLAT | 3,000 |
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| GUIDON | NJ | Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/2 | SLOT FLAT | 1,000 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 3/4 | nc flat slotted | 452 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 5/8 | nc flat slotted | 35 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 1/2 | nc flat slotted | 161 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 1 1/4 | nc flat slotted | 49 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 3/4 | nc flat phil | 36 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 1 1/2 | nc flat slotted | 79 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 1 | nc flat slotted | 130 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 2 1/2 | nc flat slotted | 100 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 1/2 | nc round slotted | 300 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 1/4 | nc round slotted | 101 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 3 | nc round slotted | 8 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 1 1/4 | nc round slotted | 63 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 5/8 | nc round slotted | 278 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 3/4 | nc round slotted | 88 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 1 1/2 | nc round slotted | 160 |
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| Valley Nu | WA | Machine Screw | Brass | Plain | 1/4-20 x 1 | nc pan phil | 86 |
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| Valley Nu | WA | Machine Screw | Nylon (Polyamide) | Plain | 1/4-20 x 3/4 | nc round slotted m/s pl | 13 |
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| Valley Nu | WA | Machine Screw | Nylon (Polyamide) | Plain | 1/4-20 x 1 | nc flat slotted m/s pl | 1025 |
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| Valley Nu | WA | Machine Screw | Nylon (Polyamide) | Plain | 1/4-20 x 7/8 | nc flat slotted m/s pl | 650 |
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| Valley Nu | WA | Machine Screw | Nylon (Polyamide) | Plain | 1/4-20 x 3/4 | nc flat slotted m/s pl | 216 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/4-20 x 3/8 | slotted flat head b18.6.3 | 1524 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/4-20 x 3/4 | slotted flat head b18.6.3 | 500 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/4-20 x 1 | slotted round head b18.6.3 | stock |
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| QFS | MI | Machine Screw | Brass | Plain | 1/4-20 x 5/8 | slotted round head b18.6.3 | stock |
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| QFS | MI | Machine Screw | Brass | Plain | 1/4-20 x 3/4 | slotted round head b18.6.3 | 99 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/4-20 x 3/8 | slotted round head b18.6.3 | stock |
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| QFS | MI | Machine Screw | Brass | Plain | 1/4-20 x 1 3/4 | slotted flat head b18.6.3 | 57 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/4-20 x 1 | slotted flat head b18.6.3 | 1300 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/4-20 x 2 1/2 | slotted flat head b18.6.3 | 855 |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 | slotted pan head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/8 | slotted flat head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | slotted flat head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/4 | slotted flat head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 1/2 | slotted flat head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 3/4 | slotted flat head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3 | slotted flat head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 | slotted flat head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 2 1/2 | slotted flat head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3/4 | phillips pan head (18-8) b18.6.3 | stock |
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| QFS | MI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | phillips pan head (18-8) b18.6.3 | stock |
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