Hex cap screws, their hexagon head is designed to be driven using a wrench or socket. These fasteners are also known as hex cap bolts, hex bolts, tap bolts, or hex cap screws. Class 10.9 in Plain.
M20-2.50 x 40mm Class 10.9 Hex Cap Screw COARSE – PLAIN (DIN 933)
$2.33
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