Stud bolts ASTM A193 Gr B11 En

Alloy steel, AISI 4140/4142 quenched and tempered, this specification is heavily utilized in petroleum and chemical construction applications. The ASTM standard covers alloy steel bolting materials for high temperature or high pressure service. This specification fasteners intended for use in pressure vessels, valves, flanges, and fittings

Stainless Steel Fastener with Carbon Steel LEVIN® Drill Point
For Aluminium sheet to Steel substrate, Stainless Steel Fastener with Carbon Steel LEVIN® Drill Poin