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3/8 Socket Cap Screws (ASME B18. 2.1)

Socket Head Cap Screws are typically used in machine parts, die fixturing, and clamping. Socket head cap screws have a flat faced, circular raised head with an indented hex socket. They can be fully or part threaded, are usually manufactured from high grade alloy steel. Dimensionally, metric socket head cap screws are covered by the relevant DIN, ISO or JIS standards, but US/Imperial socket head cap screws are covered by the ASME B18.2.1 and B18.3 specifications.

Socket Head Cap Screw (b18.2.1), showing 200, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
ParkerAZSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/43/8-16 x 3/4 socket head cap screw fully threaded dfar 302 s/s plain b18.2.1 b18.3 made in u.s.a.16,150
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AbabaCASocket Head Cap ScrewSteelPlain3/8-16 x 103/8-16 x 10 inch soc cap screw alloy b18.2.1 b18.31
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AbabaCASocket Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 13/8-16 x 1 soc cap screw 316 s/s b18.2.1 b18.375
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 13/8-16 x 1 soc cap screw s/s b18.2.1 b18.3127
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AbabaCASocket Head Cap ScrewSteelPlain3/8-16 x 13/8-16 x 1 soc cap screw alloy b18.2.1 b18.31263
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 13/8-16 x 1 low soc cap screw s/s b18.2.1 b18.357
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1 1/43/8-16 x 1 1/4 soc cap screw s/s b18.2.1 b18.3530
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AbabaCASocket Head Cap ScrewSteelPlain3/8-16 x 1 1/43/8-16 x 1 1/4 soc cap screw alloy b18.2.1 b18.3800
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AbabaCASocket Head Cap ScrewSteelZinc/Clear3/8-16 x 1 1/43/8-16 x 1 1/4 soc cap screw alloy znc b18.2.1 b18.3300
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AbabaCASocket Head Cap ScrewSteelPlain3/8-16 x 1 1/23/8-16 x 1-1/2 socket head cap screw bumax 88 b18.2.1 b18.310
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1 1/23/8-16 x 1 1/2 soc cap screw s/s b18.2.1 b18.3939
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AbabaCASocket Head Cap ScrewSteelPlain3/8-16 x 1 1/23/8-16 x 1 1/2 soc cap screw alloy b18.2.1 b18.31021
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1 3/43/8-16 x 1 3/4 soc cap screw s/s b18.2.1 b18.392
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AbabaCASocket Head Cap ScrewSteelPlain3/8-16 x 1 3/43/8-16 x 1 3/4 soc cap screw alloy b18.2.1 b18.3243
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 4 1/23/8-16 x 4 1/2 soc cap screw s/s b18.2.1 b18.336
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AbabaCASocket Head Cap ScrewSteelPlain3/8-16 x 4 1/23/8-16 x 4 1/2 soc cap screw alloy b18.2.1 b18.3150
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AbabaCASocket Head Cap ScrewSteelPlain3/8-16 x 53/8-16 x 5 soc cap screw alloy b18.2.1 b18.3120
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1/23/8-16 x 1/2 soc cap screw s/s b18.2.1 b18.3108
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AbabaCASocket Head Cap ScrewSteelPlain3/8-16 x 5 1/23/8-16 x 5 1/2 soc cap screw alloy b18.2.1 b18.383
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 5 3/43/8-16 x 5-3/4 soc cap screw s/s b18.2.1 b18.350
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 63/8-16 x 6 soc cap screw s/s b18.2.1 b18.3124
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SIIINSocket Head Cap ScrewSteelBlack Oxide3/8-24 x 2 1/43/8-24 x 2-1/4 socket head cap screw black oxide) b18.2.1 b18.368
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 1/23/8-16 x 1/2 socket head cap screw) b18.2.1 b18.3350
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SIIINSocket Head Cap ScrewSteelBlack Oxide3/8-16 x 5/83/8-16 x 5/8 black oxide alloy steel socket cap screw) b18.2.1 b18.3550
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 3/43/8-16x3/4 shcs plain) b18.2.1 b18.3225
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 7/83/8-16 x 7/8 socket head cap screw) b18.2.1 b18.3550
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 13/8-16x1 shcs plain) b18.2.1 b18.3370
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 1 1/43/8-16x1-1/4 shcs plain) b18.2.1 b18.3440
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 1 1/23/8-16x1-1/2 shcs plain) b18.2.1 b18.3339
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 1 3/43/8-16x1-3/4 shcs plain) b18.2.1 b18.3280
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 23/8-16x2 shcs plain) b18.2.1 b18.3191
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 2 1/43/8-16x2-1/4 shcs) b18.2.1 b18.3125
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 2 1/23/8-16x2-1/2 shcs plain) b18.2.1 b18.3195
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SIIINSocket Head Cap ScrewSteelPlain3/8-16 x 33/8-16x3 shcs plain) b18.2.1 b18.3100
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 1/23/8-16 x 1/2 socket cap screws b18.2.1 b18.3863
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 1/23/8-16 x 1/2 low head socket cap screw b18.2.1 b18.3100
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 13/8-16 x 1 socket cap screws b18.2.1 b18.3181
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 13/8-16 x 1 low head socket cap screws b18.2.1 b18.393
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 1 1/43/8-16 x 1 1/4 socket cap screws b18.2.1 b18.3298
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 1 1/23/8-16 x 1 1/2 socket cap screws b18.2.1 b18.3150
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 1 1/23/8-16 x 1 1/2 socket cap screws unbrako b18.2.1 b18.326
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 23/8-16 x 2 socket cap screws b18.2.1 b18.3251
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 2 1/43/8-16 x 2 1/4 socket cap screws b18.2.1 b18.3320
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 2 1/23/8-16 x 2 1/2 socket cap screws b18.2.1 b18.32190
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 3 1/23/8-16 x 3 1/2 socket cap screws b18.2.1 b18.31745
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 43/8-16 x 4 socket cap screws torx drive b18.2.1 b18.36
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 63/8-16 x 6 socket cap screws b18.2.1 b18.335
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 83/8-16 x 8 socket cap screws b18.2.1 b18.399
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-24 x 3/43/8-24 x 3/4 socket cap screws b18.2.1 b18.3932
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-24 x 7/83/8-24 x 7/8 low hd socket cap screws b18.2.1 b18.32
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-24 x 13/8-24 x 1 socket cap screws b18.2.1 b18.380
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-24 x 1 1/23/8-24 x 1 1/2 socket cap screws b18.2.1 b18.3507
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-24 x 23/8-24 x 2 socket cap screws b18.2.1 b18.3561
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B & K FASTPASocket Head Cap ScrewSteelPlain3/8-16 x 3/83/8-16 x 3/8 square hd socket set screws cup pt b18.2.1 b18.3261
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JET FITTINGCASocket Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 5/8cap screw socket 3/8-16x5/8 stainless steel 316 b18.2.1 b18.321
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-16 x 3/4cap screw socket 3/816x3/4 alloy steellock # r b18.2.1 b18.375
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/4cap screw socket 3/816x3/4 stainless steel b18.2.1 b18.3357
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-16 x 7/8cap screw socket 3/816x7/8 alloy steel# r b18.2.1 b18.350
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-16 x 1cap screw socket 3/816x1 alloy steel b18.2.1 b18.3400
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1cap screw socket 3/816x1 stainless steel b18.2.1 b18.3150
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-16 x 1 1/4cap screw socket 3/816x1-1/4 alloy steel b18.2.1 b18.350
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1 1/4cap screw socket 3/816x1-1/4 stainless steel b18.2.1 b18.356
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JET FITTINGCASocket Head Cap ScrewSt eelPlain3/8-16 x 1 1/23/8-16x1-1/2 hex socket cap screw alloy steel thermal black oxide b18.2.1 b18.31650
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1 1/2cap screw socket 3/816x1-1/2 stainless steel b18.2.1 b18.360
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-16 x 1 3/4cap screw socket 3/8-16x1-3/4 alloy steel b18.2.1 b18.3492
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-16 x 23/8-16x2 (pt) hex socket cap screw alloy steel thermal black oxide b18.2.1 b18.3290
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 2cap screw socket 3/816x2 stainless steel b18.2.1 b18.365
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-16 x 2 1/4cap screw socket 3/816x2-1/4 alloy steel b18.2.1 b18.389
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JET FITTINGCASocket Head Cap ScrewSteelZinc/Clear3/8-16 x 2 1/4cap screw socket 3/816x2-1/4 alloy steelsteel zinc plated b18.2.1 b18.3900
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 2 1/4cap screw socket 3/816x2-1/4 stainless steel b18.2.1 b18.310
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-16 x 2 1/2cap screw socket 3/816x2-1/2 alloy steel b18.2.1 b18.3150
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-16 x 5cap screw socket 3/816x5 alloy steel thermal black oxide b18.2.1 b18.343
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JET FITTINGCASocket Head Cap ScrewSteelZinc/Yellow3/8-16 x 5cap screw socket 3/816x5 alloy steelcadmium plated yellow # b18.2.1 b18.322
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JET FITTINGCASocket Head Cap ScrewSteelPlain3/8-24 x 3/4cap screw socket 3/824x3/4 alloy steel b18.2.1 b18.3100
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