#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 
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 3/4c/s trimmed s/s300
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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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METRO INDOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/2c/s trimmed s/s40
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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/s200
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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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SJS ProdCAHex Head Cap ScrewSteelZinc/Yellow#4-40 x 10.24-40x10.2 low profile special cap scr zy () ()678
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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/o ()665
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OlanderCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 9/164-40x9/16 trim hex hd sst983
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OlanderCAHex Head Cap ScrewSteelPlain#4-40 x 1/44-40 x 1/4 hx hd nyl10433
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WDMBIAHex Head Cap ScrewSteelZinc/Clear#4-40 x 5/16cap screw hex lock st (zt) 4-40x5/16 drw315
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ManscoMIHex Head Cap ScrewNylonPlain#4-40 x 7/8hex c/sr 33% glass filled natural10,000
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ManscoMIHex Head Cap ScrewNylonPlain#4-40 x 5/8hex c/sr 33% glass filled natural10,000
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OlanderCAHex Head Cap ScrewSteelPlain#4-40 x 3/84-40 x 3/8 hx hd nyl2415
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EximS'poreHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40 x 7/16screw hex c/s heads/s passivated#4-40 x 7/16 in b18.2.15683
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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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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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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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