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#3 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.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
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GLFOHSocket Head Cap ScrewSteelPlain#3-48 x 3/8#3-48x3/8 shcs stl pln b18.2.1 b18.3 () () ()85
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BHAMALSocket Head Cap ScrewSteelPlain#3-48 x 3/83-48x3/8 socket cs dom b18.2.1 b18.3300
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#3-48socket head cap screw 304ss NAS1352C03-8 b18.2.1 b18.3 () () ()5000
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#3-48 x 3/8socket head cap screw 304ss NAS1352C03-6 b18.2.1 b18.3 () () ()995
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-48 x 3/163-48 x 3/16 soc cap screw s/s b18.2.1 b18.31565
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-48 x 1/43-48 x 1/4 soc cap screw s/s b18.2.1 b18.382
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-56 x 1/43-56 x 1/4 soc cap screw s/s b18.2.1 b18.3634
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AbabaCASocket Head Cap ScrewSteelPlain#3-56 x 1/43-56 x 1/4 soc cap screw alloy b18.2.1 b18.3100
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ASMCILSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-56 x 1fine socket hd c/s ss18-8 b18.2.1 b18.3150
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ASMCILSocket Head Cap ScrewSteelPlain#3-48 x 5/16#3-48x5/16 (ft) unc socket hd cap screw alloy pln b18.2.1 b18.375
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ASMCILSocket Head Cap ScrewSteelPlain#3-56 x 5/8#3-56x5/8 (ft) fine socket hd cap screw alloy pln b18.2.1 b18.351
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ASMCILSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-56 x 5/16#3-56x5/16 fine socket hd cap screw ss18-8 b18.2.1 b18.350
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-48 x 1/43-48 x 1/4 soc cap screw s/s b18.2.1 b18.3100
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-56 x 1/43-56 x 1/4 soc cap screw s/s b18.2.1 b18.3200
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EximS'poreSocket Head Cap Screw316, 317, A4 StainlessPlain#3-48 x 1/2screw socket head cap 316 stainless steel#3-48 x 1/2 inlegacy pn r.810cs034808 b18.2.1 b18.35
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StandardMASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-48 x 1/23-48x1/2 socket cap screw 18-8 stainless steel b18.2.1 b18.328500
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StandardMASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-48 x 3/83-48x3/8 socket cap screw 18-8 stainless steel b18.2.1 b18.352555
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QFCTXSocket Head Cap ScrewSteelBlack Oxide#3-563-56 socket head cap screw blk oxide b18.2.1 b18.32400
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QFCTXSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-48 x 3/83-48x 3/8 soc c/s 18-8 b18.2.1 b18.3200
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QFCTXSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-48 x 1/43-48x1/4 soc c/s 18-8 b18.2.1 b18.3400
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QFCTXSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-48 x 1/23-48x1/2 soc c/s 18-8 b18.2.1 b18.32000
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JET FITTINGCASocket Head Cap ScrewSteelPlain#3-48 x 3/16cap screw socket 348x3/16 alloy steel b18.2.1 b18.3105
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JET FITTINGCASocket Head Cap ScrewSteelPlain#3-48 x 3/4cap screw socket 348x3/4 alloy steellock b18.2.1 b18.3852
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