M12-1.75 x 40mm Hex Flange Bolt, Non Serrated, Grade 10.9, Zinc Yellow
Sold Here in a package of 5.
Non Serrated Flange Bolts, also called Frame Bolts, are used heavily in the automotive industry. The large washer face provides a wide bearing area, which keeps fastener tight longer than with a normal hex bolt and minimizes damage to object it is fastened to.