S-90124A844 3/4"-10 x 2 1/4" ASME B18.2.1, SAE J429 Steel Wire-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc-plated steel construction, ideal for harsh industrial environments
• High tensile strength of 120,000 PSI ensures reliable performance under heavy loads and vibration
• Superior grip and fastening power with fully threaded UNC coarse spacing for quick assembly in demanding applications
• Precise Class 2A thread fit guarantees consistent engagement and reduces cross-threading risks
• Rockwell C25 hardness provides excellent durability and wear resistance for long service life
• External hex drive design allows for easy installation with standard tools, improving workflow efficiency
• Compliance with ASME B18.2.1 and SAE J429 ensures dimensional accuracy and interchangeability in industrial systems

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 5 hex head screw excels in machinery assembly, structural frameworks, and automotive components where high tensile strength and corrosion resistance are critical. The zinc-plated steel material combats rust in humid or outdoor settings, while the UNC coarse thread and fully threaded design provide maximum holding power in wood, metal, and composite materials. Its external hex drive simplifies installation with common wrenches, reducing labor time and ensuring secure fastening in high-stress environments like construction and manufacturing.

Specification Summary & Compliance

This screw features a 3/4"-10 UNC coarse thread with Class 2A fit for precise dimensional tolerance, meeting ASME B18.2.1 and SAE J429 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global industrial use.