1-1/4"-8 UNJ-2B Lock Nut
ASTM A564 17-4 PH (H1150). Machined to the customer's drawing in our Houston shop.

Built for demanding environments 1-1/4"-8 UNJ-2B Lock Nut designed for performance where it counts. ASTM A564 17-4 PH (H1150), high strength, corrosion resistant Made to precise customer specs Precision you can rely on.
Nuts are machined from bar or hex stock, tapped to the thread class specified, and heat treated where the grade requires it. Heavy hex, jam, castellated, cap, seal and coupling patterns are turned in-house, so special dimensions cost no more than standard ones.
About the material: The high-strength stainless — up to 190 ksi in H900, or 115 to 135 ksi with real toughness in the H1150 conditions — for pump shafts, valve stems, subsea and aerospace fasteners. Read the 17-4 PH data page →

