S-90124A712 1/2"-13 x 1" ASME B18.2.1, SAE J429 Steel Wire-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance in demanding industrial applications
• Superior corrosion resistance through zinc-plated steel construction for extended service life in harsh environments
• Precise Class 2A thread fit guarantees smooth installation and secure fastening connections
• Heavy-duty Grade 5 classification provides consistent mechanical properties for critical structural applications
• External hex drive design enables high-torque installation with standard tools for efficient assembly
• UNC coarse threading offers excellent engagement and vibration resistance in various materials
• Full threading along 1" length allows for maximum adjustability and holding power

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers exceptional engineering value through its zinc-plated steel construction and UNC coarse thread design, specifically engineered to address common industrial fastening challenges. The combination of 120,000 psi tensile strength and Rockwell C25 hardness ensures reliable performance in structural applications where vibration resistance and load-bearing capacity are critical. The external hex drive facilitates high-torque installation without stripping, while the coarse thread pitch provides superior holding power in both metal and wood substrates. These industrial fasteners are particularly valuable in machinery assembly, construction frameworks, and equipment manufacturing where consistent thread fit Class 2A tolerance ensures repeatable, secure connections that withstand dynamic loads and environmental exposure.

Specification Summary & Compliance

This 1/2"-13 hex head screw maintains precise Class 2A thread fit tolerances according to UNC standards, ensuring compatibility with standard nuts and threaded components. Manufactured to meet ASME B18.2.1 specifications where identified under SAE J429, the fastener delivers consistent dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations regarding substance restrictions, making it suitable for global industrial applications requiring verified material safety and environmental responsibility.