1/4"-20 UNC-3A x 3/4" Socket Head Cap Screws
Monel K500 (ASTM F468). Machined to the customer's drawing in our Houston shop.

1/4"-20 UNC-3A x 3/4" socket head cap screws in Monel K500 to ASTM F468, suited to marine service in constant contact with salt water.
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: Monel 400 corrosion resistance with more than twice the strength — 130 ksi tensile, 90 ksi yield and 24 to 37 HRC — for pump shafts, subsea fasteners and oil-tool components. Read the Monel K-500 data page →

