S-91236A652 3/8"-16 x 8" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating, extending service life in demanding industrial environments
• High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration
• Rockwell B69 hardness provides excellent durability and resistance to wear and deformation
• Class 2A thread fit offers consistent, reliable assembly with standard UNC coarse threads
• External hex drive design allows for easy installation and removal with common tools
• Partial threading provides optimal grip and clamping force for various material thicknesses
• Full compliance with ASME B18.2.1 standards guarantees dimensional accuracy and interchangeability

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw delivers exceptional engineering value for industrial applications where reliability and durability are paramount. The zinc plated steel construction provides essential corrosion protection in manufacturing, construction, and machinery assembly environments. The coarse UNC thread spacing ensures quick assembly and superior holding power in various materials, while the partially threaded design allows for precise clamping control. With 60,000 psi tensile strength and Rockwell B69 hardness, this fastener maintains structural integrity under stress, vibration, and thermal cycling conditions. The external hex drive facilitates efficient installation with standard wrenches, reducing assembly time and labor costs in production environments.

Specification Summary & Compliance

This 8-inch hex head screw features precise Class 2A thread fit with 3/8"-16 UNC coarse threading and 1 1/4" minimum thread length. Manufactured to ASME B18.2.1 specifications with material compliance to ASTM A307. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety standards for industrial use.