Newport Fasteners 3/4-10 Finished Hex Nuts Grade 5 Steel Zinc Plated ASME B18.2.2 ASTM A563 Made in USA (Large Box, 300 Pcs)

MADE IN USA — DFARS COMPLIANT: Domestically manufactured in the United States, meeting DFARS 252.225-7008 / 252.225-7009 specialty metals requirements for use on U.S. Department of Defense contracts and federal infrastructure projects. Mill traceability and Certificates of Conformance available on request. GRADE 5 MEDIUM CARBON STEEL: Manufactured from medium carbon steel meeting SAE J995 Grade 5 mechanical requirements with 120,000 psi minimum tensile strength and 85,000 psi proof load. Designed to mate with SAE J429 Grade 5 hex cap screws and bolts (3 radial dashes, 120 degrees apart) for balanced strength assemblies. ASME B18.2.2 DIMENSIONAL CONFORMANCE: Finished Hex Nut dimensions conform to ASME B18.2.2 specification for inch-series hex nuts. Width across flats 1-1/8" (1.1250"), thickness 41/64" (0.6406"). Compatible with standard SAE wrenches and sockets. ASTM A563 GRADE A: Material chemistry and heat treatment meet ASTM A563 Grade A requirements for carbon and alloy steel nuts, ensuring proper hardness (Rockwell C24-C32) and proof load capacity for use with Grade 5 externally threaded fasteners up to 1-1/2" diameter. PRECISION INTERNAL THREADS: Threads cut to ASME B1.1 Class 2B Unified Inch Series tolerance for reliable engagement with Class 2A external threads. Thread designation 3/4-10 (UNC Coarse Thread). Compatible with all standard Class 2A bolts and threaded rods of matching size.