S-93075A291 12-24 x 1/2" ASME B18.6.3 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 60,000 PSI ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from zinc plating extends the screw's service life, making it ideal for use in environments prone to moisture or chemical exposure.
• Precise Class 2A thread fit guarantees easy assembly and secure fastening, minimizing the chance of cross-threading and improving installation efficiency.
• Coarse UNC threads provide excellent grip and holding power in a wide range of materials, from metal to plastic, enhancing versatility.
• External hex drive design allows for high-torque application with standard tools, ensuring tight, secure connections without stripping.
• Full threading along the 1/2" length offers maximum engagement and adjustability, accommodating various material thicknesses with a single fastener.
• Compliance with ASME B18.6.3, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations, providing peace of mind for global sourcing.

Professional Applications & Engineering Value

Engineered for industrial and construction settings, this 12-24 UNC hex head screw addresses common challenges like vibration loosening and material fatigue. Its steel construction and Rockwell B69 hardness deliver durability against wear, while the coarse thread design ensures quick installation and robust holding in softer substrates. The zinc-plated finish combats rust, making it suitable for outdoor equipment, machinery assembly, and automotive applications where external hex drive accessibility is crucial. By meeting ASME B18.6.3 specifications, it provides consistent performance, reducing downtime and maintenance costs in high-strength fastening scenarios.

Specification Summary & Compliance

This screw features a Class 2A thread fit for standard tolerance, UNC coarse threads with a size of 12-24, and dimensions including a 1/2" length, 5/32" head height, and 5/16" head width. It is manufactured in compliance with ASME B18.6.3 for dimensional accuracy and performance. Additionally, it adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for environmentally conscious procurement.