ARP stainless steel bolts are rated at 170,000 psi to provide a substantial extra margin of safety over Grade 8 and other hardware. They're available in hex head or 12-point styles and a variety of lengths and sizes for use on cars, boats, trailers, and more. Stock up on these truly maintenance-free bolts so you'll have them when the need arises. Order the ARP stainless steel bolts designed to fit your application.Bolts, 12-Point Head, Stainless 300, Polished, 10mm x 1.25 RH Thread, 30mm UHL, Set of 5ARP started applying technology to race fastener design and manufacturing in 1968. Today's critical diesel fasteners - head studs and bolts, main studs and bolts, and driveline - have been designed stronger than ever before to handle the extreme loads. As a results, installation pre-loads - the amount the fastener is stretched during installation - are very high.Specifications:Socket Size(s): 12mm 12ptTorque Value: 54 ft-lbs (73.2 Nm)UHL: 30mmThread Length: 30mm Grip Length: n/amm Thread Diameter-Spacing: M10 x 1.25mm Grip Diameter: 10mm Wrenching: 12mm Head Height: 9.0mm Collar Diameter: 18.5mm