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5/16 inch length 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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Search Results Sponsored by Parker Fasteners, your source for Socket Head Cap Screws. For more results, visit   www.parkerfasteners.com
SupplierLocTypeMaterialFinishSizeDescriptionQty 
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Irwin IndOntSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/166-32 x 5/16 unc socket head capscrew stainless steel b18.2.1 b18.3 960
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Irwin IndOntSocket Head Cap ScrewSuperalloy (Inconel, Hastelloy, Alloy 20)Plain#8-32 x 5/168-32 x 5/16 socket head cap screw alloy a286 b18.2.1 b18.33750
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Irwin IndOntSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32 x 5/16 unc sckt hd cap screw stainless stl b18.2.1 b18.31300
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Irwin IndOntSocket Head Cap ScrewSteelZinc/Black#8-32 x 5/168-32 x 5/16 socket capscrew alloy steel zinc tri blk .0002 b18.2.1 b18.32350
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Irwin IndOntSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 unc soc capscrew stainless steel w/ yellow nylon patch b18.2.1 b18.32000
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Irwin IndOntSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 unc socket head capscrew stainless steel b18.2.1 b18.37700
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Irwin IndOntSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 shcs 18.8 s/s w/301 s/s washer b18.2.1 b18.33800
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Irwin IndOntSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/162-56x5/16 socket head cap screw-18.8 ss b18.2.1 b18.3894
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Irwin IndOntSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/166-32x5/16 unc soc capscrew 18-8 304 steel w/yellow nylon patch b18.2.1 b18.33000
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/16#2-56x5/16 shcs 18-8 s/s b18.2.1 b18.3 () () ()40
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GLFOHSocket Head Cap ScrewSteelPlain#6-32 x 5/16#6-32x5/16 shcs stl pln b18.2.1 b18.3 () () ()280
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/16#6-32x5/16 shcs 18-8 s/s b18.2.1 b18.3 () () ()706
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GLFOHSocket Head Cap ScrewSteelPlain#8-32 x 5/16#8-32x5/16 shcs stl pln b18.2.1 b18.3 () () ()71
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/16#8-32x5/16 shcs 18-8 s/s b18.2.1 b18.3 () () ()8064
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/16#4-40x5/16 shcs 18-8 s/s b18.2.1 b18.3 () () ()3239
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 5/16#10-32x5/16 shcs 18-8 s/s b18.2.1 b18.3 () () ()2129
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/16#8-32x5/16 shcs 18-8 s/s thread locker source ( mc) b18.2.1 b18.3 () () ()475
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GLFOHSocket Head Cap ScrewSteelZinc/Black#8-32 x 5/16#8-32x5/16 shcs stl ams 2417/astmb841 bzn b18.2.1 b18.3 () () ()8211
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40 x 5/164-40x5/16 ss socket/cap screw 304ss NAS1352-C04-5 b18.2.1 b18.3 () () ()1500
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40 x 5/16socket head cap screw dfars compliant 304ss NAS1352C04H5 b18.2.1 b18.3 () () ()253
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40 x 5/164-40x5/16 ss socket/cap screw w/patch 304ss NAS1352C04-5H b18.2.1 b18.3 () () ()6730
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GLFOHSocket Head Cap ScrewSteelPlain#5-40 x 5/165-40x5/16 socket head cap screw-plain b18.2.1 b18.3 () () ()98
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BHAMALSocket Head Cap Screw316, 317, A4 StainlessPlain#4-40 x 5/164-40x5/16 socket c/s 316 ss b18.2.1 b18.3100
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/16#4-40x5/16 shcs 18-8 s/s w/patch b18.2.1 b18.3 () () ()2400
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#6-32 x 5/166-32x5/16 ss socket/cap screw 304ss NAS1352-C06-5 b18.2.1 b18.3 () () ()420
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GLFOHSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/16#8-32x5/16 shcs 18-8 s/s/red patch b18.2.1 b18.3 () () ()6000
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#0-80 x 5/160-80 x 5/16 soc cap screw s/s b18.2.1 b18.3200
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AbabaCASocket Head Cap ScrewSteelPlain#10-24 x 5/1610-24 x 5/16 soc cap screw alloy b18.2.1 b18.3100
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AbabaCASocket Head Cap Screw316, 317, A4 StainlessPlain#10-32 x 5/1610-32 x 5/16 soc cap screw 316 s/s b18.2.1 b18.3490
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AbabaCASocket Head Cap ScrewSteelPlain#10-32 x 5/1610-32 x 5/16 soc cap screw alloy b18.2.1 b18.31350
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/162-56 x 5/16 soc cap screw s/s b18.2.1 b18.36609
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/162-56 x 5/16 soc cap screw w/patch s/s b18.2.1 b18.31840
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AbabaCASocket Head Cap ScrewSteelPlain#2-56 x 5/162-56 x 5/16 soc cap screw alloy b18.2.1 b18.3512
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 soc cap screw nyl patch s/s b18.2.1 b18.3640
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/166-32 x 5/16 soc cap screw s/s b18.2.1 b18.31466
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/166-32 x 5/16 soc cap screw w/patch s/s b18.2.1 b18.371
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AbabaCASocket Head Cap ScrewSteelPlain#6-32 x 5/166-32 x 5/16 soc cap screw alloy b18.2.1 b18.32169
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32 x 5/16 soc cap screw s/s b18.2.1 b18.31273
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32 x 5/16 soc cap screw w/patch s/s b18.2.1 b18.3358
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32 x 5/16 low soc cap screw s/s b18.2.1 b18.3413
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AbabaCASocket Head Cap ScrewSteelPlain#4-40 x 5/164-40 x 5/16 soc cap screw alloy b18.2.1 b18.31900
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AbabaCASocket Head Cap ScrewSteelPlain#8-32 x 5/168-32 x 5/16 soc cap screw alloy b18.2.1 b18.3400
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 5/1610-32 x 5/16 soc cap screw s/s b18.2.1 b18.31884
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ASMCILSocket Head Cap ScrewSteelPlain#4-40 x 5/16#4-40x5/16 (ft) coarse socket hd cap screw alloy pln b18.2.1 b18.3400
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ASMCILSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/16#6-32x5/16 coarse socket hd cap screw ss18-8 b18.2.1 b18.3100
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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 Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-48 x 5/16fine socket hd c/s ss18-8 b18.2.1 b18.3300
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ASMCILSocket Head Cap ScrewSteelPlain#0-80 x 5/16(ft) fine socket hd c/s b18.2.1 b18.375
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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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ASMCILSocket Head Cap ScrewSteelPlain#10-24 x 5/16#10-24x5/16 (ft) coarse socket hd cap screw alloy pln b18.2.1 b18.375
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AbabaCASocket Head Cap ScrewSteelPlain#10-32 x 5/1610-32 x 5/16 soc cap screw alloy b18.2.1 b18.3200
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/166-32 x 5/16 soc cap screw s/s b18.2.1 b18.3225
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AbabaCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32 x 5/16 soc cap screw s/s b18.2.1 b18.3400
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Alma BoltMISocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/16#2-56 x 5/16 st. st. socket head cap screw b18.2.1 b18.3800
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#0-80 x 5/16screw m/c socket head cap hexs/s black oxide 3a# 0-80 x 5/16 in b18.2.1 b18.313629
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#0-80 x 5/16screw m/c socket head cap hexs/s passivated 3a# 0-80 x 5/16 in b18.2.1 b18.344
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#1-64 x 5/16screw m/c socket head cap hexs/s passivated 3a# 1-64 x 5/16 in b18.2.1 b18.3368810
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#2-56 x 5/16screw m/c socket head cap hexs/s passivated unc 3a# 2-56 x 5/16 in. b18.2.1 b18.31605317
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EximS'poreSocket Head Cap ScrewSteelBlack Oxide#2-56 x 5/16screw m/c socket head cap hexsteel black oxide unc 3a# 2-56 x 5/16 in. b18.2.1 b18.347
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EximS'poreSocket Head Cap ScrewSteelBlack Oxide#2-56 x 5/16screw socket head cap hexsteel black oxide with knurling#2-56 x 5/16 in b18.2.1 b18.3399
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EximS'poreSocket Head Cap ScrewSteelZinc/Clear#2-56 x 5/16screw m/c socket head cap hexsteel blue zn unc 3a# 2-56 x 5/16 in b18.2.1 b18.31627
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#5-40 x 5/16screw socket head cap hexs/s natural#5-40 x 5/16 in b18.2.1 b18.3200
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EximS'poreSocket Head Cap ScrewSteelZinc/Yellow#6-32 x 5/16screw socket head cap hexsteel yellow zinc# 6-32 x 5/16 in b18.2.1 b18.36957
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EximS'poreSocket Head Cap ScrewSteelBlack Oxide#6-32 x 5/16screw socket head cap hexsteel black oxide unc 3a# 6-32 x 5/16 in b18.2.1 b18.3123142
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#6-32 x 5/16screw socket head cap hexs/s passivated unc 3a# 6-32 x 5/16 in b18.2.1 b18.365
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EximS'poreSocket Head Cap ScrewSteelZinc/Black#4-40 x 5/16screw socket head cap hexsteel black zn#4-40 x 5/16 in b18.2.1 b18.32270
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EximS'poreSocket Head Cap ScrewSteelZinc/Yellow#4-40 x 5/16screw socket head cap hexsteel yellow zn# 4-40 x 5/16 in b18.2.1 b18.349392
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EximS'poreSocket Head Cap ScrewSteelZinc/Clear#4-40 x 5/16screw socket head cap hexsteel blue zn unc 3a# 4-40 x 5/16 in b18.2.1 b18.312524
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 5/16screw socket head cap hexs/s black oxide unc 3a# 4-40 x 5/16 in b18.2.1 b18.311483
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40 x 5/16screw socket head cap hexs/s passivated#4-40 x 5/16 in b18.2.1 b18.311425
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Zinc/Black#4-40 x 5/16screw socket head cap hexs/s black zn w. nylon patch#4-40 x 5/16 in b18.2.1 b18.36809
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EximS'poreSocket Head Cap ScrewSteelZinc/Clear#8-32 x 5/16screw socket head cap hexsteel blue zn unc 2a# 8-32 x 5/16 in. b18.2.1 b18.326943
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EximS'poreSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#8-32 x 5/16screw socket head cap hexs/s passivated#8-32 x 5/16 in b18.2.1 b18.3872
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SIIINSocket Head Cap ScrewSteelBlack Oxide1/4-20 x 5/161/4-20x5/16 a574 hex black oxide alloy steel socket cap screw b18.2.1 b18.32500
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-24 x 5/16#10-24x5/16 shcs ss a2 592197 b18.2.1 b18.31000
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/16#6-32x5/16 shcs ss a2 592131 b18.2.1 b18.31307
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 5/16#10-32x5/16 shcs ss a2 1-S-10F-31 b18.2.1 b18.3996
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-48 x 5/16#4-48x5/16 shcs ss a2 592144 b18.2.1 b18.32400
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/16#8-32x5/16 shcs ss a2 592161 b18.2.1 b18.32600
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JET FITTINGCASocket Head Cap Screw316, 317, A4 StainlessPlain#4-40 x 5/164-40x5/16 (ft) hex socket cap screw stainless steel 316 014002 b18.2.1 b18.31900
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/16#2-56x5/16 shcs ss a2 b18.2.1 b18.31000
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StandardMASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 5/1610-32x5/16 socket cap screw 18-8 stainless steel b18.2.1 b18.333492
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StandardMASocket Head Cap Screw316, 317, A4 StainlessPlain#10-24 x 5/1610-24x5/16 socket cap screw 316 stainless steel b18.2.1 b18.319582
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StandardMASocket Head Cap Screw316, 317, A4 StainlessPlain#10-32 x 5/1610-32x5/16 socket cap screw 316 stainless steel b18.2.1 b18.314200
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StandardMASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/162-56x5/16 socket cap screw 18-8 stainless steel b18.2.1 b18.396
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StandardMASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-24 x 5/1610-24x5/16 socket cap screw 18-8 stainless steel b18.2.1 b18.314200
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StandardMASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/166-32x5/16 socket cap screw 18-8 stainless steel b18.2.1 b18.3479
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StandardMASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40x5/16 socket cap screw 18-8 stainless steel b18.2.1 b18.327966
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StandardMASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#0-80 x 5/160-80x5/16 socket cap screw 18-8 stainless steel b18.2.1 b18.36100
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QFCTXSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/162/56x5/16 socket cap screw 18-8 b18.2.1 b18.32200
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QFCTXSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164/40x5/16 18-8ss skt cap screw b18.2.1 b18.3200
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QFCTXSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32x5/16 soc c/s 18-8 b18.2.1 b18.3200
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OSSCORISocket Head Cap ScrewSteelPlain#8-32 x 5/168-32x5/16 socket cap screw b18.2.1 b18.32,564
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OSSCORISocket Head Cap ScrewSteelPlain#8-32 x 5/168-32x5/16 socket cap screw nylon patch b18.2.1 b18.32,145
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OSSCORISocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40x5/16 socket cap screw 18-8 304 b18.2.1 b18.31,700
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QFCTXSocket Head Cap ScrewSteelPlain#2-56 x 5/162/56x5/16 soc c/s plain b18.2.1 b18.3800
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QFCTXSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 5/161/4-20x5/16 soc c/s 18-8 b18.2.1 b18.3200
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-24 x 5/16cap screw socket 1024x5/16 stainless steel b18.2.1 b18.31000
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JET FITTINGCASocket Head Cap ScrewSteelPlain#10-32 x 5/16cap screw socket 1032x5/16 alloy steel b18.2.1 b18.3140
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 5/16cap screw socket 1032x5/16 stainless steel b18.2.1 b18.3406
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/16cap screw socket 256x5/16 stainless steel b18.2.1 b18.31965
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/16cap screw socket 632x5/16 stainless steel b18.2.1 b18.31550
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/16cap screw socket 832x5/16 stainless steel b18.2.1 b18.3185
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JET FITTINGCASocket Head Cap ScrewSteelPlain#4-40 x 5/16cap screw socket 440x5/16 alloy steel b18.2.1 b18.3100
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JET FITTINGCASocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40x5/16 hex socket cap screw stainless steel 18-8 b18.2.1 b18.3725
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NWFASTTXSocket Head Cap ScrewSuperalloy (Inconel, Hastelloy, Alloy 20)Plain#2-56 x 5/16#2-56 x 5/16 socket head cap screw a286 super alloy with mtr b18.2.1 b18.3312
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JET FITTINGCASocket Head Cap ScrewSteelPlain#10-24 x 5/16cap screw socket 1024x5/16 alloy steel b18.2.1 b18.32500
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JET FITTINGCASocket Head Cap ScrewSteelPlain#8-32 x 5/16cap screw socket 832x5/16 alloy steel b18.2.1 b18.3340
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THRDFASTFLSocket Head Cap ScrewSteelPlain#6-32 x 5/16socket c/s b18.2.1 b18.319
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THRDFASTALSocket Head Cap ScrewSteelPlain#10-24 x 5/16socket c/s b18.2.1 b18.3105
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All SizeTXSocket Head Cap ScrewSteelPlain#8-32 x 5/168-32 x 5/16 socket head cap screw b18.2.1 b18.316
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All SizeTXSocket Head Cap ScrewSteelPlain#10-24 x 5/1610-24 x 5/16 socket head cap screw b18.2.1 b18.3102
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All SizeTXSocket Head Cap ScrewSteelPlain3/8-24 x 5/163/8-24 x 5/16 socket head cap screw b18.2.1 b18.3712
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All SizeTXSocket Head Cap ScrewSteelPlain#5-40 x 5/165-40 x 5/16 socket head cap screw b18.2.1 b18.376
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All SizeTXSocket Head Cap ScrewSteelPlain#6-32 x 5/166-32 x 5/16 socket head cap screw b18.2.1 b18.385
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All SizeTXSocket Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32 x 5/16 socket head cap screw s/s b18.2.1 b18.338
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