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#2 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 Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 3/82-56 x 3/8 flat soc cap screw s/s b18.2.1 b18.3190
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AbabaCAFlat Head Socket Cap ScrewSteelPlain#2-56 x 3/82-56 x 3/8 flat soc cap screw alloy b18.2.1 b18.3120
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AbabaCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 1/42-56 x 1/4 flat soc cap screw s/s b18.2.1 b18.3354
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AbabaCAFlat Head Socket Cap ScrewSteelPlain#2-56 x 1/42-56 x 1/4 flat soc cap screw alloy b18.2.1 b18.3700
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AbabaCAFlat Head Socket Cap ScrewSteelPlain#2-56 x 1/22-56 x 1/2 flat soc cap screw alloy b18.2.1 b18.3200
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GLFOHFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 3/16#2-56x3/16 flat 18-8 s/s b18.2.1 b18.3 () () ()1184
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AbabaCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/162-56 x 5/16 flat socket head cap screw stainless steel b18.2.1 b18.3500
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Irwin IndOntFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 3/162-56 x 3/16 flat socket cap screw stainless stl b18.2.1 b18.36500
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ASMCILFlat Head Socket Cap ScrewSteelPlain#2-56 x 5/16(ft) coarse socket flat hd c/s b18.2.1 b18.3500
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ASMCILFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/8coarse socket flat hd c/s ss18-8 b18.2.1 b18.3895
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ASMCILFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 1/2#2-56x1/2 coarse socket flat hd cap screw ss18-8 b18.2.1 b18.375
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ASMCILFlat Head Socket Cap ScrewSteelPlain#2-56 x 5/8(ft) coarse socket flat hd c/s b18.2.1 b18.3950
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JET FITTINGCAFlat Head Socket Cap ScrewSteelPlain#2-56 x 3/82-56x3/8 flat alloy stl b18.2.1 b18.3100
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JET FITTINGCAFlat Head Socket Cap ScrewSteelPlain#2-56 x 3/8#2-56x3/8 non-standard flat hdsock cap 712020 b18.2.1 b18.3630
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ParkerAZFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x .3022-56 x .302 flat head soc cap fully threaded dfar 302 s/s plain finish b18.2.1 b18.3 made in u.s.a.51,700
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ParkerAZFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x .3022-56 x .302 flat head soc screw dfar 302 s/s b18.2.1 b18.3 made in u.s.a.51,700
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ParkerAZFlat Head Socket Cap Screw316, 317, A4 StainlessPassivated#2-56 x 3/162-56 x 3/16 flat head socket cap screw dfar 316l s/s passivate b18.2.1 b18.3 made in u.s.a.2,900
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StandardMAFlat Head Socket Cap Screw316, 317, A4 StainlessPlain#2-56 x 3/162-56x3/16 flat head socket cap screw 316 stainless steel b18.2.1 b18.396250
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StandardMAFlat Head Socket Cap Screw316, 317, A4 StainlessPlain#2-56 x 5/162-56x5/16 flat head socket cap screw 316 stainless steel b18.2.1 b18.371548
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 5/162-56x5/16 flat head socket cap screw 18-8 stainless steel b18.2.1 b18.373600
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StandardMAFlat Head Socket Cap Screw316, 317, A4 StainlessPlain#2-56 x 1/22-56x1/2 flat head socket cap screw 316 stainless steel b18.2.1 b18.332300
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 3/162-56x3/16 flat head socket cap screw 18-8 stainless steel b18.2.1 b18.348500
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 1/42-56x1/4 flat head socket cap screw 18-8 stainless steel b18.2.1 b18.356930
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StandardMAFlat Head Socket Cap Screw316, 317, A4 StainlessPlain#2-56 x 1/42-56x1/4 flat head socket cap screw 316 stainless steel b18.2.1 b18.330300
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StandardMAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 1/22-56x1/2 flat head socket cap screw 18-8 stainless steel b18.2.1 b18.312200
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QFCTXFlat Head Socket Cap ScrewSteelPlain#2-56 x 1/42/56x1/4 flat hd socket cap b18.2.1 b18.3200
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Marine FastenersFLFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 3/42-56x3/4 flat socket cs ss b18.2.1 b18.315000
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Marine FastenersFLFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 3/162-56x3/16 flat socket cs 18-8ss b18.2.1 b18.395350
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Marine FastenersFLFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 1/22-56x1/2 flat socket cs ss b18.2.1 b18.335000
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OSSCORIFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 1/42-56x1/4 flat soc cap screw 18-8 304 b18.2.1 b18.33,845
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OSSCORIFlat Head Socket Cap ScrewSteelPlain#2-56 x 1/22-56x1/2 flat soc cap screw b18.2.1 b18.3100
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OSSCORIFlat Head Socket Cap ScrewSteelPlain#2-56 x 3/42-56x3/4 flat soc cap screw b18.2.1 b18.354
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OSSCORIFlat Head Socket Cap ScrewSteelPlain#2-56 x 5/82-56x5/8 flat soc cap screw b18.2.1 b18.394
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JET FITTINGCAFlat Head Socket Cap ScrewSteelPlain#2-56 x 3/8cap screw flat socket 256x3/8 alloy steel b18.2.1 b18.325
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JET FITTINGCAFlat Head Socket Cap ScrewSteelPlain#2-56 x 1/22-56x1/2 flat hex socket cap screw alloy steel thermal black oxide b18.2.1 b18.3300
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JET FITTINGCAFlat Head Socket Cap ScrewSteelPlain#2-56 x 5/8cap screw flat socket 256x5/8 alloy steel b18.2.1 b18.3500
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JET FITTINGCAFlat Head Socket Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#2-56 x 3/8cap screw flat socket 256x3/8 stainless steel b18.2.1 b18.3645
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