7/8"-9 UNC-3A × 4-1/2" Socket Head Cap Screw
316 Stainless Steel. Machined to the customer's drawing in our Houston shop.
7/8"-9 UNC-3A × 4-1/2" Socket Head Cap Screw was machined from 316 Stainless Steel with a partially threaded shank and a 0.70" knurled head, providing excellent corrosion resistance, a secure grip for handling, and dependable performance in service.
Special socket products are machined from bar where the specification allows, with the socket broached and the threads rolled, or cut where the specification or order allows, then heat treated and plated as the specification requires. Shoulder, low-head, flat-head and set-screw patterns follow ASME B18.3 unless the drawing says otherwise.
About the material: 316 stainless bolting with molybdenum for chloride and pitting resistance — offshore, marine, chemical and coastal plant fasteners. Read the A193 B8M Class 1 data page →
