S-93190A940 1 1/8"-7 x 3 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• High-strength performance with 70,000 psi tensile strength for demanding industrial applications
• Excellent durability and wear resistance provided by Rockwell B70 hardness
• Easy installation and removal with external hex drive and standard 1 11/16" head width
• Reliable thread engagement through Class 2A thread fit and full UNC coarse threading
• Industry-standard compatibility with ASME B18.2.1 specifications for consistent performance
• Environmental compliance with RoHS 3 and REACH regulations for safe usage

Professional Applications & Engineering Value

This heavy-duty hex head screw in 316 stainless steel delivers exceptional engineering value for industrial applications where corrosion resistance and structural integrity are paramount. The fully threaded UNC coarse thread design ensures maximum holding power in demanding environments, while the external hex drive provides superior torque transmission during installation. With 70,000 psi tensile strength and Rockwell B70 hardness, this fastener maintains performance under extreme mechanical stress, making it ideal for marine, chemical processing, and structural applications where exposure to corrosive elements would compromise ordinary fasteners. The 3 1/2" length and 1 1/8"-7 thread size offer versatile clamping capacity for heavy machinery, structural steel connections, and industrial equipment assembly.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with 1 1/8"-7 UNC coarse threading and right-hand thread direction, manufactured to exacting dimensional standards. The fastener fully complies with ASME B18.2.1 specifications for hex head bolts and screws, ensuring interchangeability and reliable performance. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances. Manufactured in the inch system with a length of 3 1/2" and head dimensions of 11/16" height by 1 11/16" width.