1 1/4-7 x 3 1/2 Alloy Steel Socket Head Cap Screw is suited to assemblies that need an alloy steel cap screw for clamp load, service access, and compact installation. The size callout supports stockroom identification and purchasing review when fixture clamps cannot accept a substitute fastener. Applications often include precision assemblies, industrial automation, and fixture design, especially where counterbored or close-clearance mounting is required. The socket head form provides a cylindrical head suited to counterbores and recessed mounting pockets. Those verified dimensions support counterbore checks, tool selection, and replacement fastener review. Technical Highlights Material: Alloy Steel Thread: 1 1/4-7 Length: 3 1/2 in. Nominal Body Diameter: 1.250 in. Head Diameter: 1.852 in. min / 1.875 in. max Head Height: 1.236 in. min / 1.250 in. max Hex Key Size: 7/8 Drive Type: Internal hex socket Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.