S-91772A412 5/16"-24 x 3/4" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precision fine threading (5/16"-24 UNF) with Class 2A fit ensures secure fastening and vibration resistance
• Optimized drive engagement through Phillips No. 4 drive design for efficient installation and reduced cam-out
• Full-threaded length provides maximum grip and uniform stress distribution across the entire fastener
• Standard-compliant manufacturing meeting ASME B18.6.3 specifications for dimensional accuracy and interchangeability
• Environmental regulation compliance with RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 5/16"-24 UNF rounded head screws deliver critical performance advantages where corrosion resistance and mechanical reliability are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against chemical exposure and atmospheric corrosion, making them ideal for marine equipment, food processing machinery, and outdoor installations. The fine thread configuration with Class 2A tolerance ensures superior vibration resistance in dynamic loading conditions, while the fully threaded design maximizes engagement in both thin and thick materials. The Phillips No. 4 drive offers balanced torque transmission for efficient assembly operations, reducing installation time and tool wear in high-volume production environments.

Specification Summary & Compliance

This rounded head screw features precision 5/16"-24 UNF fine threading with Class 2A thread fit for consistent dimensional accuracy. Manufacturing complies with ASME B18.6.3 standards ensuring proper geometry and performance characteristics. The fastener meets RoHS 3 (2015/863/EU) compliance for restricted substance control and REACH (EC 1907/2006) compliance for chemical safety regulations, making it suitable for global industrial applications requiring certified components.