5/16-18 3/8-16 7/16-14 1/2-13 Unc 2 3 4 Inch Hexagon Hex Head Cap Screw

5/16-18 3/8-16 7/16-14 1/2-13 Unc 2 3 4 Inch Hexagon Hex Head Cap Screw. Extensive Material Options: Stainless steel, carbon steel, titanium, and special alloys like Inconel and Hastelloy available. Custom Manufacturing Support: Drawing-based and sample-based production for non-standard fasteners and machined parts. Comprehensive Quality Inspection: Full-process checks including material verification, dimensional inspection, and mechanical testing. Wide Size Range Availability: Metric sizes M3 to M48 and imperial sizes 1/4 to 2 inches, plus custom sizes per drawings. Multiple Surface Finishes: Options include zinc plating, black oxide, hot-dip galvanized, and custom finishes. Global Standard Compliance: Products meet DIN, ISO, ASTM, ANSI, SAE, JIS, and BS standards. Sample Service Available: Evaluation samples provided; custom samples may incur material or tooling costs. Flexible Packaging Solutions: Bulk cartons, export pallets, wooden cases, or customized packaging per buyer requirements.