S-91309A847 3/4"-10 x 3" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating for extended service life in demanding industrial environments
• High-strength performance with 60,000 psi tensile strength and Rockwell B69 hardness for heavy-duty applications
• Precise thread engagement with Class 2A thread fit ensuring reliable fastening and vibration resistance
• Quick installation through external hex drive design compatible with standard tools
• Maximum grip length with fully threaded 3" body for superior holding power
• Industry-standard compatibility with UNC coarse threads for easy replacement and interchangeability
• Regulatory compliance meeting ASME B18.2.1, ASTM A307, RoHS 3, and REACH standards

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this 3/4"-10 UNC hex head screw combines high-strength steel construction with zinc plating to address critical challenges in structural assembly and machinery maintenance. The coarse thread design provides superior resistance to vibration loosening while enabling faster installation in steel frameworks, construction equipment, and industrial machinery. With fully threaded length and external hex drive, maintenance teams achieve optimal clamp load distribution and accessibility in confined spaces. The right-hand thread direction ensures compatibility with standard installation practices, reducing assembly time and minimizing the risk of cross-threading in high-stress applications.

Specification Summary & Compliance

This hex head screw features Class 2A thread fit per UNC standards with 3/4"-10 coarse threading and maintains dimensional accuracy as specified in ASME B18.2.1. Manufactured according to ASTM A307 specifications, the fastener demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.