S-92327A304 1/2"-13 x 2" ASME B18.2.1, SAE J429 Square Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with 120,000 psi tensile strength and Rockwell C25 hardness for reliable performance in demanding applications
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh industrial environments
• Easy installation and removal with external square drive design that prevents cam-out and allows for high torque application
• Reliable thread engagement through Unified Standard Class 2A thread fit and coarse UNC threading for secure fastening
• Full thread coverage along the 2" length ensures maximum grip and load distribution across the entire fastener
• Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed quality and interchangeability
• Medium strength classification (SAE Grade 5) provides optimal balance between durability and flexibility for various industrial applications

Professional Applications & Engineering Value

This 1/2"-13 UNC square head screw delivers exceptional engineering value through its SAE Grade 5 steel construction and zinc yellow-chromate plating, specifically designed to address common industrial fastening challenges. The coarse thread design provides superior resistance to vibration loosening while the external square drive enables high-torque installation without stripping. Perfect for heavy machinery, structural steel connections, and equipment assembly where medium strength fasteners with reliable corrosion protection are required. The fully threaded configuration ensures maximum load distribution, making it ideal for applications demanding consistent clamping force across the entire fastener length in construction, manufacturing, and maintenance operations.

Specification Summary & Compliance

This square head screw features precise Unified Standard Class 2A thread fit with 1/2"-13 UNC coarse threading and right-hand thread direction. Manufactured to exact ASME B18.2.1 specifications and compliant with SAE J429 standards for Grade 5 fasteners. The inch system measurement ensures dimensional accuracy with a 2" length, 3/4" head width, and 21/64" head height. The zinc yellow-chromate plating provides corrosion resistance while maintaining the mechanical properties required for industrial applications requiring 120,000 psi tensile strength and Rockwell C25 hardness ratings.