5/8"-11 UNC-2A x 2.88" Segment Screw
ASTM A193 B7. Machined to the customer's drawing in our Houston shop.
5/8"-11 UNC-2A x 2.88" Segment Screw Segment design for reliable prevailing torque and vibration resistance Engineered for secure locking without additional hardware Precision 11 UNC-2A threading for consistent, dependable engagement.
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: The workhorse alloy-steel bolting grade for flanges, valves and pressure equipment — 125 ksi tensile, quenched and tempered 4140. Read the A193 B7 data page →
