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1/2 Machine Screws (ASME B18. 6.3)
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.
98 results, (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 | |
| Buy Machine Screws from one of our FCH Network Members | ||||||||
| GLF | OH | Machine Screw | 316, 317, A4 Stainless | Plain | 1/2-13 x 1 | 1/2-13x1 slotted flat m/s 316 s/s b18.6.3 () () () | 6 |
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| BHAM | AL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 6 | 1/2-13x6 slotted round m/s zn b18.6.3 | 90 |
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| BHAM | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 1/2 | 1/2-13x1 1/2 slotted flat m/s 300 ser ss b18.6.3 | 13 |
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| Ababa | CA | Machine Screw | Steel | Plain | 1/2 | 1/2 countersink 82 deg b18.6.3 | 4 |
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| Ababa | CA | Machine Screw | Steel | Plain | 1/2 | 1/2 countersink 82 deg b18.6.3 | 2 |
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| JET FITTING | CA | Machine Screw | Steel | Plain | 1/2-13 x 5 | 1/2-13x5 ms round sltzn 583991 b18.6.3 | 25 |
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| Standard | MA | Machine Screw | Silicon Bronze | Plain | 1/2-13 x 3 1/2 | 1/2-13x3-1/2 slotted flat head machine screw silicon bronze b18.6.3 | 1138 |
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| Standard | MA | Machine Screw | Silicon Bronze | Plain | 1/2-13 x 2 1/2 | 1/2-13x2-1/2 slotted flat head machine screw silicon bronze b18.6.3 | 609 |
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| Standard | MA | Machine Screw | Silicon Bronze | Plain | 1/2-13 x 2 | 1/2-13x2 slotted flat head machine screw silicon bronze b18.6.3 | 455 |
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| Standard | MA | Machine Screw | Brass | Plain | 1/2-13 x 2 | 1/2-13x2 phillips flat head machine screw brass b18.6.3 | 1160 |
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| Standard | MA | Machine Screw | Brass | Plain | 1/2-13 x 1 1/2 | 1/2-13x1-1/2 phillips flat head machine screw brass b18.6.3 | 1157 |
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| Standard | MA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 | 1/2-13x1 slotted flat head machine screw 18-8 stainless steel b18.6.3 | 2715 |
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| Standard | MA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 1/4 | 1/2-13x1-1/4 slotted flat head machine screw 18-8 stainless steel b18.6.3 | 1831 |
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| Standard | MA | Machine Screw | Brass | Plain | 1/2-13 x 1 1/4 | 1/2-13x1-1/4 phillips flat head machine screw brass b18.6.3 | 1249 |
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| Standard | MA | Machine Screw | Brass | Plain | 1/2-13 x 1 | 1/2-13x1 phillips flat head machine screw brass b18.6.3 | 367 |
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| Standard | MA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3/4 | 1/2-13x3/4 slotted flat head machine screw 18-8 stainless steel b18.6.3 | 2763 |
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| Standard | MA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 | 1/2-13x1 slotted round head machine screw 18-8 stainless steel b18.6.3 | 908 |
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| Standard | MA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 3/4 | 1/2-13x1-3/4 slotted flat head machine screw 18-8 stainless steel b18.6.3 | 74 |
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| Standard | MA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 1/2 | 1/2-13x1-1/2 slotted round head machine screw 18-8 stainless steel b18.6.3 | 56 |
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| QFC | TX | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 1 1/4 | 1/2-13x1 1/4 hwh m/s serrated zinc b18.6.3 | 300 |
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| QFC | TX | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 1/2 | 1/2-13x1-1/2 slotted round head m/s 18-8 b18.6.3 | 1 |
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| J&L | IN | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 2 | 1/2-13 X 2 STAINLESS FLAT HD M/S SLOTTED b18.6.3 | 209 |
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| Cascade | OR | Machine Screw | Brass | Plain | 1/2-13 x 2 | flat slotted b18.6.3 | 220 |
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| Cascade | OR | Machine Screw | Brass | Plain | 1/2-13 x 1 1/2 | slotted flat b18.6.3 | 1200 |
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| B & K FAST | PA | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 6 | 1/2-13 x 6 slotted flat machine screws zinc b18.6.3 | 1 |
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| B & K FAST | PA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 3/4 | 1/2-13 x 1 3/4 slotted flat machine screw 18-8 ss b18.6.3 | 73 |
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| BHAM | AL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 3 | 1/2-13x3 round slotted m/s zinc b18.6.3 | 8 |
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| OSSCO | RI | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 1 | 1/2-13x1 slotted round m/s plated b18.6.3 | 57 |
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| OSSCO | RI | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 1 1/4 | 1/2-13x1 1/4 slotted flat m/s plated b18.6.3 | 232 |
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| OSSCO | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 1/2 | 1/2-13x1 1/2 slotted flat m/s 18-8 304 b18.6.3 | 20 |
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| OSSCO | RI | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 4 | 1/2-13x4 slotted round m/s plated b18.6.3 | 2 |
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| OSSCO | RI | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 6 | 1/2-13x6 slotted round m/s plated b18.6.3 | 21 |
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| OSSCO | RI | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 2 | 1/2-13x2 slotted flat m/s 18-8 304 b18.6.3 | 23 |
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| QFC | TX | Machine Screw | Steel | Zinc/Clear | 1/2 x 6 | 1/2x6 round slotted m/s zinc b18.6.3 | 240 |
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| JET FITTING | CA | Machine Screw | Steel | Zinc/Clear | 1/2-24 x 1/4 | machine screw flat82 slotted 1224x1/4 steel zinc b18.6.3 | 1030 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 1/4 | machine screw round slotted 1224x1/4 brass b18.6.3 | 510 |
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| JET FITTING | CA | Machine Screw | Steel | Zinc/Clear | 1/2-24 x 3/8 | machine screw flat82 slotted 1224x3/8 steel zinc b18.6.3 | 320 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 3/8 | machine screw round slotted 1224x3/8 brass b18.6.3 | 815 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 5/8 | machine screw fillister slotted 1224x5/8 brass b18.6.3 | 230 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 5/8 | machine screw round slotted 1224x5/8 brass b18.6.3 | 368 |
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| JET FITTING | CA | Machine Screw | Steel | Zinc/Clear | 1/2-24 x 3/4 | machine screw pan phillips 1224x3/4 steel zinc b18.6.3 | 1350 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 3/4 | machine screw round slotted 1224x3/4 brass b18.6.3 | 277 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 7/8 | machine screw fillister slotted 1224x7/8 brass b18.6.3 | 307 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 7/8 | machine screw round slotted 1224x7/8 brass b18.6.3 | 290 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 1 1/2 | machine screw fillister slotted 1224x1-1/2 brass b18.6.3 | 454 |
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| JET FITTING | CA | Machine Screw | Steel | Zinc/Clear | 1/2-24 x 1 3/4 | machine screw flat82 slotted 1224x1-3/4 steel zinc b18.6.3 | 338 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 1 3/4 | machine screw fillister slotted 1224x1-3/4 brass b18.6.3 | 106 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 1 3/4 | machine screw round slotted 1224x1-3/4 brass b18.6.3 | 355 |
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| JET FITTING | CA | Machine Screw | Brass | Plain | 1/2-24 x 2 | machine screw round slotted 1224x2 brass b18.6.3 | 200 |
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| JET FITTING | CA | Machine Screw | Steel | Zinc/Clear | 1/2-24 x 2 | machine screw round slotted 1224x2 steel zinc b18.6.3 | 104 |
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| JET FITTING | CA | Machine Screw | Steel | Zinc/Clear | 1/2-24 x 2 1/4 | machine screw flat82 slotted 1224x2-1/4 steel zinc b18.6.3 | 144 |
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| JET FITTING | CA | Machine Screw | Steel | Zinc/Clear | 1/2-24 x 2 1/4 | machine screw fillister slotted 1224x2-1/4 steel zinc b18.6.3 | 444 |
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| JET FITTING | CA | Machine Screw | Steel | Zinc/Clear | 1/2-24 x 2 3/4 | machine screw flat82 slotted 1224x2-3/4 steel zinc b18.6.3 | 288 |
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| JET FITTING | CA | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-24 x 3/8 | machine screw pan phillips 1224x3/8 stainless steel b18.6.3 | 200 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 3/4 | slotted flat m/s b18.6.3 | 246 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 1 | slotted round m/s b18.6.3 | 286 |
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| THRDFAST | FL | Machine Screw | 316, 317, A4 Stainless | Plain | 1/2-13 x 1 3/4 | t-316 ss slotted flat m/s b18.6.3 | 116 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 6 | slotted round m/s b18.6.3 | 109 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 8 1/2 | 18-8 ss slotted flat m/s b18.6.3 | 99 |
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| THRDFAST | FL | Machine Screw | Brass | Plain | 1/2-13 x 3/4 | slotted flat m/s b18.6.3 | 46 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 2 | slotted round m/s b18.6.3 | 36 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 2 1/2 | 18-8 ss slotted flat m/s b18.6.3 | 23 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 4 | slotted flat m/s b18.6.3 | 20 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 1/4 | 18-8 ss slotted flat m/s b18.6.3 | 17 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 4 | slotted round m/s b18.6.3 | 13 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 5 | slotted flat m/s b18.6.3 | 3 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 1/2 | 18-8 ss slotted flat m/s b18.6.3 | 1 |
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| THRDFAST | FL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 | 18-8 ss slotted flat m/s b18.6.3 | 1 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 1 1/2 | slotted flat m/s b18.6.3 | 1 |
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| THRDFAST | FL | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 3/4 | slotted truss m/s b18.6.3 | 50 |
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| THRDFAST | OK | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 | 18-8 ss slotted flat m/s b18.6.3 | 15 |
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| THRDFAST | AL | Machine Screw | Steel | Cadmium | 1/2-13 x 2 | slotted flat m/s b18.6.3 domestic | 3 |
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| THRDFAST | OK | Machine Screw | Steel | Zinc/Clear | 1/2-13 x 2 | slotted flat m/s domestic b18.6.3 | 339 |
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| THRDFAST | AL | Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 1 3/4 | 18-8 ss slotted flat m/s b18.6.3 | 9 |
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| MMF | MI | Machine Screw | Steel | Cadmium/Yellow | 1/2-13 x 1 1/4 | 1/2-13 x 1-1/4 phil flat stl/cad machine screw w patch usa ms35190-343l b18.6.3 | 110 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/2-13 x 1 3/4 | slotted flat head b18.6.3 | 15 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/2-13 x 1 1/4 | slotted flat head b18.6.3 | 23 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/2-13 x 2 1/2 | slotted flat head b18.6.3 | 41 |
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| QFS | MI | Machine Screw | Brass | Plain | 1/2-13 x 3 | slotted flat head b18.6.3 | 15 |
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