S-92210A681 7/16"-20 x 3/4" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Superior thread engagement and vibration resistance through Class 3A thread fit and UNF fine threading for secure, reliable fastening
• High-strength performance under load with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Efficient installation and flush mounting with 1/4" hex drive and standard 82° countersink angle for seamless surface finish
• Full thread coverage across the entire 3/4" length ensures maximum grip and load distribution
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH for guaranteed quality and safety
• Durable, maintenance-free operation thanks to corrosion-resistant materials and precision manufacturing

Professional Applications & Engineering Value

Engineered for precision fastening in demanding environments, these 7/16"-20 UNF flat head screws deliver reliable performance where vibration resistance and corrosion protection are critical. The 18-8 stainless steel construction combined with a passivated finish provides excellent durability against moisture, chemicals, and outdoor exposure, making them ideal for machinery, automotive assemblies, and structural applications. The Class 3A thread fit and fine threading ensure tight tolerances and reduced loosening under dynamic loads, while the flat head design with 82° countersink allows for flush installation in predrilled surfaces. These screws are specifically designed to meet the needs of industrial and heavy-duty applications, offering long-term reliability and reduced maintenance costs.

Specification Summary & Compliance

This product features precision Class 3A thread fit with 7/16"-20 UNF fine threading and full threading along the 3/4" length. Manufactured in compliance with ASME B18.3 standards, it ensures dimensional accuracy and interchangeability. The screw is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.