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7/8 inch length Flat Head Cap Screws (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 
AbabaCAFlat Head Socket Cap ScrewSteelPlain#10-32 x 7/810-32 x 7/8 flat soc cap screw alloy b18.2.1 b18.36700
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AbabaCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 7/81/4-20 x 7/8 flat soc cap screw s/s b18.2.1 b18.3259
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AbabaCAFlat Head Socket Cap ScrewSteelPlain1/4-20 x 7/81/4-20 x 7/8 flat soc cap screw alloy b18.2.1 b18.3732
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AbabaCAFlat Head Socket Cap ScrewSteelPlain1/4-28 x 7/81/4-28 x 7/8 flat soc cap screw alloy b18.2.1 b18.3100
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AbabaCAFlat Head Socket Cap ScrewSteelZinc/Yellow1/4-28 x 7/81/4-28 x 7/8 flt soc cap alloy yel znc b18.2.1 b18.31800
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AbabaCAFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18 x 7/8 flat soc cap screw alloy b18.2.1 b18.31073
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AbabaCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 7/83/8-16 x 7/8 flt soc cap s/s b18.2.1 b18.3437
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AbabaCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 7/88-32 x 7/8 flat soc cap screw s/s b18.2.1 b18.3210
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GLFOHFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 7/85/16-18x7/8 flat 18-8 s/s b18.2.1 b18.3 () () ()516
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GLFOHFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 7/8#10-32x7/8 flat 18-8 s/s b18.2.1 b18.3 () () ()52
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GLFOHFlat Head Socket Cap ScrewSteelPlain1/4-20 x 7/81/4-20x7/8 flat head socket b18.2.1 b18.3 () () ()105
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GLFOHFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 7/81/4-20x7/8 flat 18-8 s/s b18.2.1 b18.3 () () ()100
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black1/4-20 x 7/81/4-20 x 7/8 flat soc c/s stl .0002 min zinc trivalent black b18.2.1 b18.32000
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Irwin IndOntFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 7/81/4-28 x 7/8 flat socket capscrew ss b18.2.1 b18.340
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Irwin IndOntFlat Head Socket Cap ScrewSteelZinc/Black#6-32 x 7/86-32x7/8 flat steel socket cap screw zinc trivalent black b18.2.1 b18.32000
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ASMCILFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 7/8#10-32x7/8 fine socket flat hd cap screw ss18-8 b18.2.1 b18.31,150
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AbabaCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 7/810-32 x 7/8 flat soc cap screw s/s b18.2.1 b18.3100
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AbabaCAFlat Head Socket Cap ScrewSteelPlain#10-32 x 7/810-32 x 7/8 flat soc cap screw alloy b18.2.1 b18.3100
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AbabaCAFlat Head Socket Cap ScrewSteelPlain1/4-20 x 7/81/4-20 x 7/8 flat soc cap screw alloy b18.2.1 b18.3250
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AbabaCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 7/85/16-18 x 7/8 flt soc cap s/s b18.2.1 b18.350
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Infasco DILFlat Head Socket Cap ScrewSteelPlain1/4-20 x 7/81/4-20 x 7/8 hex flat skt cntk b18.3 (alloy) unc ft p12870
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SIIINFlat Head Socket Cap ScrewSteelPlain1/4-20 x 7/81/4-20x7/8 fhscs) b18.2.1 b18.31300
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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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Infasco DGAFlat Head Socket Cap ScrewSteelPlain1/4-20 x 7/81/4-20 x 7/8 hex flat skt cntk b18.3 (alloy) unc ft p18000
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JET FITTINGCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#10-32 x 7/810-32x7/8 flat hex socket stainless steel 18-8 black oxide and wax 10F14FSCS SSBOW b18.2.1 b18.33860
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JET FITTINGCAFlat Head Socket Cap ScrewSteelBlack Oxide#10-32 x 7/8#10-32x7/8 flat hdsock caps stl blk ox 721130 b18.2.1 b18.35074
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JET FITTINGCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 7/810-32x7/8 flat hex socket stainless steel 18-8 plain nylon patch-standard 10F14FSCS SSQB b18.2.1 b18.3840
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JET FITTINGCAFlat Head Socket Cap ScrewSteelPlain#10-32 x 7/8#10-32x7/8 non-standard flat hdsock ca 712138 b18.2.1 b18.35022
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JET FITTINGCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-24 x 7/8#10-24x7/8 flat hdsock caps a2 (18-8) 212165 b18.2.1 b18.3200
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JET FITTINGCAFlat Head Socket Cap ScrewSteelPlain#3-48 x 7/8#3-48x7/8 non-standard flat hdsock cap 712040 b18.2.1 b18.3900
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ParkerAZFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18x.875 flat head socket cap screw asme b18.3 .677 thread 4037 aly stl 39-43 hrc thermal blacken 6-lobe reference wmin6213 made in u.s.a.870
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ParkerAZFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18x.875 flat head socket cap screw asme b18.3 .677 thread 4037 aly stl 39-43 hrc thermal blacken 6-lobe reference wmin6213 made in u.s.a.300
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ParkerAZFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18x.875 flat head socket cap screw asme b18.3 .677 thread 4037 aly stl 39-43 hrc thermal blacken 6-lobe reference wmin6213 made in u.s.a.2465
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ParkerAZFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18x.875 flat head socket cap screw asme b18.3 .677 thread 4037 aly stl 39-43 hrc thermal blacken 6-lobe reference wmin6213 made in u.s.a.630
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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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ParkerAZFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18 x 7/8 flat head socket cap screw dfar 4037 aly stl 6 lobe b18.2.1 b18.3 made in u.s.a.5,465
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ParkerAZFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18x.875 flat head socket cap screw asme b18.3 .677 thread 4037 aly stl 39-43 hrc thermal blacken 6-lobe reference wmin6213 made in u.s.a.2465
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ParkerAZFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18x.875 flat head socket cap screw asme b18.3 .677 thread 4037 aly stl 39-43 hrc thermal blacken 6-lobe reference wmin6213 made in u.s.a.300
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ParkerAZFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18x.875 flat head socket cap screw asme b18.3 .677 thread 4037 aly stl 39-43 hrc thermal blacken 6-lobe reference wmin6213 made in u.s.a.870
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ParkerAZFlat Head Socket Cap ScrewSteelPlain5/16-18 x 7/85/16-18x.875 flat head socket cap screw asme b18.3 .677 thread 4037 aly stl 39-43 hrc thermal blacken 6-lobe reference wmin6213 made in u.s.a.630
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 7/85/16-18x7/8 flat head socket cap screw 18-8 stainless steel b18.2.1 b18.324928
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StandardMAFlat Head Socket Cap Screw316, 317, A4 StainlessPlain#4-40 x 7/84-40x7/8 flat head socket cap screw 316 stainless steel b18.2.1 b18.316375
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 7/81/4-20x7/8 flat head socket cap screw 18-8 stainless steel b18.2.1 b18.312000
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 7/81/2-13x7/8 flat head socket cap screw 18-8 stainless steel b18.2.1 b18.32375
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B & K FASTPAFlat Head Socket Cap ScrewSteelPlain#10-24 x 7/810/24 x 7/8 flat hd socket cap screws b18.2.1 b18.3176
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B & K FASTPAFlat Head Socket Cap ScrewSteelPlain#10-32 x 7/810/32 x 7/8 flat hd socket cap screws b18.2.1 b18.33385
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B & K FASTPAFlat Head Socket Cap ScrewSteelPlain1/2-13 x 7/81/2-13 x 7/8 flat hd socket cap screws b18.2.1 b18.355
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B & K FASTPAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-24 x 7/810/24 x 7/8 flat socket cap screws 18-8 ss b18.2.1 b18.328
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B & K FASTPAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 7/81/4-20 x 7/8 flat socket cap screws 18-8 ss b18.2.1 b18.3474
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B & K FASTPAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 7/81/4-28 x 7/8 flat socket cap screws 18-8 ss b18.2.1 b18.350
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B & K FASTPAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 7/83/8-16 x 7/8 flat socket cap screws 18-8 ss b18.2.1 b18.3100
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Marine FastenersFLFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 7/88-32x7/8 flat skt cs ss b18.2.1 b18.327500
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Marine FastenersFLFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 7/81/4-28x7/8 flat soc cs 18-8 b18.2.1 b18.310000
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Marine FastenersFLFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 7/810-32x7/8 flat soc cs ss b18.2.1 b18.384580
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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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OSSCORIFlat Head Socket Cap ScrewSteelPlain#10-32 x 7/810-32x7/8 flat soc cap screw b18.2.1 b18.3627
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OSSCORIFlat Head Socket Cap ScrewSteelPlain1/4-20 x 7/81/4-20x7/8 flat soc cap screw b18.2.1 b18.3100
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QFCTXFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-24 x 7/810/24x7/8 flat hd skt 18-8ss b18.2.1 b18.388
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QF CTXFlat Head Socket Cap ScrewSteelZinc/Clear1/4-20 x 7/81/4-20x7/8 flat soc c/s zinc b18.2.1 b18.35
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Bostwick INFlat Head Socket Cap ScrewSteelPlain1/2-13 x 7/81/2-13 x 7/8 flat soc cap screw alloy b18.2.1 b18.3138
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Bostwick INFlat Head Socket Cap ScrewSteelPlain3/8-16 x 7/83/8-16 x 7/8 flat soc cap screw alloy b18.2.1 b18.380
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Bostwick INFlat Head Socket Cap ScrewSteelPlain#6-32 x 7/86-32 x 7/8 flat soc cap screw alloy b18.2.1 b18.3300
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JET FITTINGCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#10-32 x 7/8cap screw flat socket hex 10-32x7/8 stainless steel 18-black oxide & wax b18.2.1 b18.31300
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JET FITTINGCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 7/8cap screw flat socket 1032x7/8 stainless steel lock b18.2.1 b18.3850
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JET FITTINGCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-24 x 7/8cap screw flat socket 1024x7/8 stainless steel b18.2.1 b18.3200
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JET FITTINGCAFlat Head Socket Cap ScrewSteelPlain#10-32 x 7/8cap screw flat socket 1032x7/8 alloy steel b18.2.1 b18.32500
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JET FITTINGCAFlat Head Socket Cap ScrewSteelZinc/Yellow1/4-28 x 7/8cap screw flat socket 1/428x7/8 cadmium plated yellow b18.2.1 b18.3950
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THRDFASTFLFlat Head Socket Cap ScrewSteelPlain1/4-20 x 7/8flat socket c/s b18.2.1 b18.3100
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THRDFASTFLFlat Head Socket Cap ScrewSteelPlain#10-24 x 7/8flat socket c/s b18.2.1 b18.34
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WSBKYFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 7/8screw flat soc (18-8) pat 10-32x7/8 b18.2.1 b18.38,530
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DavisILFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-24 x 7/8#10-24 x 7/8 flat hd. skt. cap screw-stainless b18.2.1 b18.3300
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