5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance

Low-VOC formulation that complies with LEED 2009 requirements

Commonly used to keep threaded fasteners from loosening

Set includes 1/16″ to 1/4″ by 64ths drill bits

Contains a carefully selected assortment of hand tools needed for most industrial

7/8"-9X7",(PT) HEX CAP SCREW GR 8 COARSE ALLOY PLAIN {BOX 10} 5/16in (8mm) diameter hardened boron7 8" 9X7",(PT) HEX CAP SCREW GR 8 COARSE ALLOY PLAIN {BOX 10} Hex Cap Screws (Hex Head Bolts) A cap screw made from medium carbon alloy steel and heat treated. Grade 8 exceeds the strength of a Grade 165 Designed for use in high stress applications.