Off the floor · Socket & Special Screws
1/2"-13 UNC-3A x 1-1/2" Socket Head Cap Screw
ASTM A193 B7M, Xylan 1424/524 Blue coating. Machined to the customer's drawing in our Houston shop.
Job details
PartSocket Head Cap Screw
Thread1/2"-13 UNC-3A
Length1-1/2"
MaterialASTM A193 B7M, Xylan 1424/524 Blue coating
Grade pageA193 B7M
Product familySocket Products
Made inHouston, Texas · ISO 9001 certified
1/2"-13 UNC-3A x 1-1/2" socket head cap screw in ASTM A193 B7M with Xylan 1424/524 Blue coating.
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: B7 tempered to 22 HRC max for sour service — the NACE MR0175 bolting grade for wellheads, sour gas and H₂S process piping. Read the A193 B7M data page →
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