S-92865A152 1/4"-20 x 1 3/8" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating, extending service life in demanding environments
• High tensile strength of 120,000 psi ensures reliable performance under heavy loads and vibration
• Grade 5 strength classification provides dependable mechanical properties for critical industrial assemblies
• Coarse UNC thread design enables faster installation and better debris resistance
• Partially threaded shank offers optimal clamping force distribution and prevents joint loosening
• External hex drive allows for high torque application with standard tools
• Class 2A thread fit guarantees consistent engagement and interchangeability

Professional Applications & Engineering Value

These Grade 5 hex head screws deliver exceptional value in industrial machinery, structural frameworks, and heavy equipment assembly. The zinc plated steel construction provides essential corrosion protection for applications exposed to moisture or harsh operating conditions. With Rockwell C25 hardness and 120,000 psi tensile strength, these fasteners maintain integrity under sustained stress and dynamic loading. The 1/4"-20 UNC coarse thread configuration ensures rapid installation while resisting cross-threading, and the partially threaded design concentrates clamping force precisely where needed. These hex head screws are engineered to solve common industrial challenges including vibration-induced loosening, corrosion degradation, and assembly efficiency requirements.

Specification Summary & Compliance

This 1/4"-20 hex head screw features Class 2A thread fit per UNC standards with 3/4" minimum thread length and 1-3/8" overall length. Manufactured to ASME B18.2.1 and SAE J429 Grade 5 specifications, ensuring dimensional accuracy and mechanical performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe industrial use.