Off the floor · Socket & Special Screws · posted 1yr ago
2"-8 UN-2A x 3-1/4" Socket Head Cap Screw
ASTM A193 B7 (SAE 4140). Machined to the customer's drawing in our Houston shop.
Job details
PartSocket Head Cap Screw
Thread2"-8 UN-2A
Length3-1/4"
MaterialASTM A193 B7 (SAE 4140)
Product familySocket Products
Made inHouston, Texas · ISO 9001 certified
2"-8 UN-2A × 3-1/4" socket head cap screw machined from SAE 4140 bar certified to ASTM A193 B7.
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 →
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