#4-40 Hex Cap Screws

Hex Cap Screws are hex headed fasteners with external machine screw threads and differ from hex machine bolts by having a washer surface on the underside or bearing side of the head and a chamfered thread end. Hex cap screws have tighter dimensional tolerances than bolts. Metric hex cap screws are specified by various DIN, ISO and JIS standards, and US/Imperial hex cap screws are dimensionally specified by the ASME B18.2.1 specification.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
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AFIFLHex Head Cap ScrewSteelZinc/YellowM4-40 x 8.8m4x40 hex hd cs ft c8.8 st zd1660
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METRO INDOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/16c/s trimmed s/s196
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AIHAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/16hex c/s s/s261
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OlanderCAHex Head Cap ScrewSteelPlain#4-40 x 1/44-40 x 1/4 hx hd nyl10433
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METRO INDOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4c/s trimmed s/s300
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Bolts PlusOntHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4trim hhc 18.8 18-8 30470
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R&SORHex Head Cap ScrewSteelPlain#4-40 x 1/44-40 x 1/4' hex head cap screw217
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SOLUTIONOHHex Head Cap ScrewSteelZinc/Black#4-40 x 5/16#4-40x5/16 alloy button head (ft) black-zinc/bake (hexavalent) prop 65 -cancer & reproductive harm -www.p65warnings.ca.gov1,745
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SOLUTIONOHHex Head Cap ScrewSteelZinc/Black#4-40 x 5/16#4-40x5/16 alloy button head (ft) black-zinc/bake (hexavalent) prop 65 -cancer & reproductive harm -www.p65warnings.ca.gov1,745
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OlanderCAHex Head Cap ScrewSteelPlain#4-40 x 3/84-40 x 3/8 hx hd nyl2415
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METRO INDOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8c/s trimmed s/s200
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AccutiteCAHex Head Cap ScrewSteelPlain#4-40 x 3/8button hd c/s200
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GlobalCAHex Head Cap ScrewSteelZinc/Clear#4-40 x 7/16hex c/s i4,019
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METRO INDOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/2c/s trimmed s/s240
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 1/2hex c/s 18-8 s/s ide1990
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R&SORHex Head Cap ScrewSteelPlain#4-40 x 1/24-40 x 1/2' hex head cap screw213
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ManscoMIHex Head Cap ScrewNylonPlain#4-40 x 5/8hex c/sr 33% glass filled natural10000
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METRO INDOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/4c/s trimmed s/s300
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ManscoMIHex Head Cap ScrewNylonPlain#4-40 x 7/8hex c/sr 33% glass filled natural10000
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 7/8hex c/s 18-8 s/s ide1944
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 1hex scr ss b/o3571
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SJS ProdCAHex Head Cap ScrewSteelZinc/Yellow#4-40 x 10.24-40x10.2 low profile special cap scr zy678
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