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Flat Head Cap Screws, Black Oxide (ASME B18. 3)

Flat Head Socket Cap Screws are designed to be seated in countersunk holes, and align flush with the surface of the assembly when installed. Flat head socket cap screws have a flat top surface, an indented hex and a conical bearing surface with a head angle of 82°. Flat head socket cap screws are commonly used in machine parts, die fixturing, and clamping.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
GLFOHFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#6-32 x 3/8#6-32x3/8 flat 18-8 s/s blk ox b18.2.1 b18.3 () () ()462
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GLFOHFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#10-32 x 3/8#10-32x3/8 flat 18-8 s/s blk ox b18.2.1 b18.3 () () ()2184
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GLFOHFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#10-32 x 21/64#10-32x21/64 flat 18-8 s/s blk ox b18.2.1 b18.3 () () ()5032
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BHAMALFlat Head Socket Cap ScrewSteelBlack Oxide#4-48 x 3/44-48x3/4 flat soc c/s alloy black ox b18.2.1 b18.3101
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Irwin IndOntFlat Head Socket Cap ScrewSteelBlack Oxide#8-32 x 5/88-32 x 5/8 flat socket capscrew black alloy b18.2.1 b18.3200
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Irwin IndOntFlat Head Socket Cap ScrewSteelBlack Oxide5/16 x 1 1/45/16 x 1-1/4 flat socket f/t black oxide b18.2.1 b18.3300
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Irwin IndOntFlat Head Socket Cap ScrewSteelBlack Oxide3/8-16 x 3/43/8-16 x 3/4 flat hd soc cap steel black ox b18.2.1 b18.350
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Irwin IndOntFlat Head Socket Cap ScrewSteelBlack Oxide#6-32 x 3/166-32 x 3/16 flat torx machine sc black oxide to print b18.2.1 b18.360300
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GLFOHFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#6-32 x 3/8#6-32x3/8 flat 18-8 s/s blk ox w/patch b18.2.1 b18.3 () () ()2416
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BHAMALFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#10-24 x 3/410-24x3/4 flat hdshcs 300 ser ss blk ox b18.2.1 b18.346
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AbabaCAFlat Head Socket Cap ScrewSteelBlack Oxide#10-32 x 3/410-32 x 3/4 flt soc cap domestic alloy blk ox wax b18.2.1 b18.360
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Alma BoltMIFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide1/4-20 x 1/21/4-20 x 1/2 black oxide st. st. flat head socket cap screw b18.2.1 b18.3438
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EximS'poreFlat Head Socket Cap ScrewSteelBlack Oxide82screw socket flat head 82 hexsteel black oxide w. loctite 503#6-32 x 3/8 in b18.2.1 b18.36885
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EximS'poreFlat Head Socket Cap ScrewSteelBlack Oxide82screw socket flat head 82 hexsteel black oxide#8-32 x 1/2 in b18.2.1 b18.3569
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EximS'poreFlat Head Socket Cap ScrewSteelBlack Oxide82screw socket flat head 82 hexsteel black oxide#10-32 x 1/2 in b18.2.1 b18.3534
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EximS'poreFlat Head Socket Cap ScrewSteelBlack Oxide82screw socket flat head cap 82 hexsteel black oxide5/16-24 x 1 in b18.2.1 b18.3444
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EximS'poreFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide90screw socket flat head 90 hexs/s black oxide m4 x 16 mm ansi std b18.2.1 b18.3867
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide#10-32 x 1 3/4#10-32x1-3/4 black oxide finish flat socket cap screw ) b18.2.1 b18.350
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide#10-32 x 2#10-32x2 black oxide finish flat socket cap screw ) b18.2.1 b18.350
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide#6-32 x 3/4#6-32 x 3/4 black oxide finish flat socket cap screw) b18.2.1 b18.3750
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide#10-32 x 3/8#10-32 x 3/8 black oxide finish flat socket cap screw ) b18.2.1 b18.31190
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide1/4-20 x 3/81/4-20 x 3/8 black oxide finish alloy steel flat socket cap screw b18.2.1 b18.31400
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide5/16-18 x 1/25/16-18 x 1/2 black oxide finish flat socket cap screw) b18.2.1 b18.3800
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide5/16-18 x 2 1/45/16-18 x 2-1/4 black oxide finish flat socket cap screw) b18.2.1 b18.3450
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide3/8-16 x 1/23/8-16 x 1/2 black oxide finish flat socket cap screw) b18.2.1 b18.3550
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide3/8-16 x 5/83/8-16 x 5/8 black oxide finish flat socket cap screw) b18.2.1 b18.3705
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide3/8-16 x 7/83/8-16 x 7/8 black oxide finish flat socket cap screw) b18.2.1 b18.3250
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide3/8-16 x 2 1/43/8-16 x 2-1/4 black oxide finish flat socket cap screw) b18.2.1 b18.3163
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide3/8-16 x 2 1/23/8-16 x 2-1/2 black oxide finish flat socket cap screw ) b18.2.1 b18.3100
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide3/8-16 x 43/8-16 x 4 black oxide finish flat socket cap screw ) b18.2.1 b18.3173
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide3/8-16 x 53/8-16 x 5 black oxide finish flat socket cap screw) b18.2.1 b18.388
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SIIINFlat Head Socket Cap ScrewSteelBlack Oxide3/8-24 x 13/8-24 x 1 astm f835 hex drive black oxide finish alloy steel flat socket cap screw b18.2.1 b18.350
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ParkerAZFlat Head Socket Cap ScrewSteelBlack Oxide#8-32 x 7/88-32 x 7/8 flat socket cap screw 6l w/pin dfar 302 black oxide b18.2.1 b18.3 made in u.s.a.5,690
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General FMIFlat Head Socket Cap ScrewSteelBlack Oxide#4-40 x 3/84-40 x .375 fhcs soc alloy blk oxide b18.2.1 b18.32400
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General FMIFlat Head Socket Cap ScrewSteelBlack Oxide1/4-20 x 1/201/4-20 x .50 fhcs soc blk ox w/nyl b18.2.1 b18.3556
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General FMIFlat Head Socket Cap ScrewSteelBlack Oxide#4-40 x 3/84-40 x .375 fhcs 6-lobe blk chromate b18.2.1 b18.314350
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General FMIFlat Head Socket Cap ScrewSteelBlack Oxide5/16-24 x 7/85/16-24 x .875 flt shcs blk ox b18.2.1 b18.31500
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QFCTXFlat Head Socket Cap ScrewSteelBlack Oxide#10-32 x 3/810-32 x 3/8 flat soc cap screw black oxide w/ nylock patch b18.2.1 b18.3500
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BCSBCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide1/4-20 x 1 1/41/4-20x 1-1/4 flat head socket stainless steel black oxide b18.2.1 b18.33,900
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NWFASTTXFlat Head Socket Cap ScrewSteelBlack Oxide5/8-11 x 3 1/25/8-11 x 3 1/2 flat head socket cap screw alloy steel black oxide b18.2.1 b18.3552
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NWFASTTXFlat Head Socket Cap ScrewSteelBlack Oxide5/8-11 x 45/8-11 x 4 flat head socket cap screw alloy steel black oxide b18.2.1 b18.3629
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