1/2-20 Button Head Cap Screws

Button Head Socket Cap Screws are commonly used in machine parts, die fixturing, and clamping. The socket head enables driving where there is not sufficient space for wrenches or sockets. The button shaped head offer a wider bearing surface. Button head socket cap screws have a high tensile strength but are still low profile. They are covered by ASME B18.3

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
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B & K FASTPAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 1/41/2-20 x 1 1/4 button hd socket cap screws b18.3100
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Alpine SuUTButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 1/21/2-20x1 1/2 soc bh plain71
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WDMBIAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 1/4screw but soc all (bzt) 1/2-20x1 1/41,000
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YANKEENHButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 11/2-20 x 1 but hd sckt screw stnls stl17
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YANKEENHButton Head Socket Cap ScrewSteelBlack Oxide1/2-20 x 1 1/21/2-20 x 1 1/2 but hd sckt screw alloy blk oxide55
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ASMCILButton Head Socket Cap ScrewSteelPlain1/2-20 x 2 1/2(ft) fine socket button hd c/s15
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ASMCILButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 1/2(ft) fine socket button hd c/s100
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ASMCILButton Head Socket Cap ScrewSteelPlain1/2-20 x 2(ft) fine socket button hd c/s75
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ASMCILButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 3/4(ft) fine socket button hd c/s130
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ASMCILButton Head Socket Cap ScrewSteelPlain1/2-20 x 3(ft) fine socket button hd c/s150
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ASMCILButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 1/4(ft) fine socket button hd c/s200
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ASMCILButton Head Socket Cap ScrewSteelPlain1/2-20 x 1(ft) fine socket button hd c/s250
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DeltaTXButton Head Socket Cap ScrewSteelPlain1/2-20 x 1button soc c/s alloy 1/2-20 x 1254
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ACCURATEILButton Head Socket Cap ScrewSteelPlain1/2-20 x 1fine button socket c/s (alloy)80
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BHAMALButton Head Socket Cap ScrewSteelPlain1/2-20 x 2 1/2button soc c/s150
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EBN IndusINButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 11/2-20 x 1 button soc cap screw 18-8 stainless b18.380
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MAINSOURCNHButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 21/2-20 x 2 but soc cap scr 18-8 ss10
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StandardMAButton Head Socket Cap Screw316, 317, A4 StainlessPlain1/2-20 x 1 1/21/2-20x1-1/2 button cap screw 316 stainless steel b18.3inquire
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CenturyFLButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 1/41/2-20 x 1.25 button socket cap screw2100
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ZAL INDUSCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 11/2-20 x 1 button soc cap screw alloy285
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ZAL INDUSCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 2 1/21/2-20 x 2 1/2 button soc cap screw stainless50
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ZAL INDUSCAButton Head Socket Cap ScrewSteelPhosphate1/2-20 x 11/2-20 x 1 button soc cap screw alloy blkph&oil100
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AbabaCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 11/2-20 x 1 btn soc cap screw s/s b18.350
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AbabaCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1 1/21/2-20 x 1 1/2 btn soc cap screw s/s b18.3100
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AbabaCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1 3/41/2-20 x 1 3/4 btn soc cap screw s/s b18.3376
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AbabaCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 21/2-20 x 2 btn soc cap screw alloy b18.3195
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AbabaCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 21/2-20 x 2 btn soc cap screw alloy b18.330
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AbabaCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 2 1/21/2-20 x 2 1/2 btn soc cap screw alloy b18.377
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AbabaCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 31/2-20 x 3 btn soc cap screw alloy b18.326
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AbabaCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 31/2-20 x 3 btn soc cap screw alloy b18.320
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LippinCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1socket cap screw buttonhead fine plain173
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AbabaCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 11/2-20 x 1 btn soc cap screw alloy b18.321
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AbabaCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1 1/41/2-20 x 1 1/4 btn soc cap screw s/s b18.3125
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AbabaCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 1/21/2-20 x 1 1/2 btn soc cap screw alloy b18.320
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AbabaCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 3/41/2-20 x 1 3/4 btn soc cap screw alloy b18.350
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OlanderCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1 1/21/2-20 x 1 1/2 but soc sst rohs150
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OlanderCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 3/41/2-20 x 1 3/4 but soc alloy63
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OlanderCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1 3/41/2-20 x 1 3/4 but soc sst rohs50
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OlanderCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 21/2-20 x 2 but soc cap sst50
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OlanderCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 3/41/2-20 x 3/4 but soc sst150
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JET FITTINGCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 3/41/2-20x3/4 button hex socket cap screw alloy steel thermal black oxide b18.320
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OlanderCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 11/2-20 x 1 but soc cap sst125
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OlanderCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 1/21/2-20 x 1 1/2 but soc alloy22
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OlanderCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 11/2-20 x 1 but soc alloy23
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OlanderCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1/21/2-20 x 1/2 but soc alloy21
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OlanderCAButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1/21/2-20 x 1/2 but soc sst rohs3
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HBBOLTCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1bh socket c/s96
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HBBOLTCAButton Head Socket Cap ScrewSteelPlain1/2-20 x 1 1/2bh soc c/sr19
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MidStatesMIButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1 1/4button soc c/s 18-88
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MidStatesMIButton Head Socket Cap ScrewSteelPlain1/2-20 x 3/8button soc c/s35
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MidStatesMIButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 3/41/2-20 x 3/4 button soc c/s 18-8600
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All SizeTXButton Head Socket Cap ScrewSteelPlain1/2-20 x 11/2-20 x 1 button head socket cap b18.3217
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BRIGHBESTILButton Head Socket Cap ScrewSteelZinc/Clear1/2-20 x 11/2-20 x 1 button socket hardened bake6000
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BRIGHBESTILButton Head Socket Cap ScrewSteelZinc/Clear1/2-20 x 1 1/41/2-20 x 1 1/4 button socket hardened bake4500
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FasSpcMfgFLButton Head Socket Cap ScrewSteelPlain1/2-20 x 1button socket cap2,700
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FasSpcMfgFLButton Head Socket Cap ScrewSteelPlain1/2-20 x 3button socket cap68
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Alma BoltMIButton Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1st. st. button socket c/s300
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