• 100% made in the U.S.A. from raw material melted and rolled in the U.S.A.
• 100% lot traceability back to raw material.
• 20% higher head provides increased wrenchability.
• Special high strength chrome alloy steel.
• 30° head point provides easier alignment in a threaded hole or with a hex nut.
• Roll formed threads with 60° flank angle provide superior fatigue resistance.
• UN Class 2A formed thread fit; post plating is considered Class 3A per ASME B1.1-2003 (R2008) and provides enhanced thread engagement.
• RoHS Compliant Zinc-Yellow Trivalent Plated.
• Tensile strength 150,000 P.S.I. minimum.

Please note that supply chain shortages may require us to temporarily substitute some non-domestic products, including in assortments.