S-96452A537 1/4"-20 x 1/2" ASME B18.3, ASTM F835 Steel Button Head Torx Plus Screws

Key Features & Benefits at a Glance

• Superior torque transmission with Torx Plus IP27/T27 drive for reduced cam-out and tool wear, increasing assembly speed and reliability
• Exceptional strength and durability from alloy steel with 120,000 psi tensile strength and Rockwell C39 hardness, ensuring long-term performance under high-stress conditions
• Enhanced corrosion resistance through the Black-Oxide surface treatment, extending service life in demanding industrial environments
• Precise, secure fastening with Class 3A thread fit and UNC coarse threading, providing reliable engagement and vibration resistance
• Low-profile, rounded button head design for a flush finish and reduced snagging, ideal for applications with space constraints
• Full threading along the 1/2" length for maximum grip and adjustability across the entire fastener
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory acceptance

Professional Applications & Engineering Value

Engineered for demanding assembly tasks, this 1/4-20 UNC screw with a Torx Plus drive addresses common industrial challenges such as tool slippage and fastener failure. The Black-Oxide Alloy Steel construction provides a robust solution for environments where corrosion and high tensile loads are concerns, such as in machinery, automotive, and electronic enclosures. Its rounded head style and fully threaded design ensure easy installation and consistent clamping force, reducing the risk of loosening under vibration. By integrating a Class 3A thread fit, it offers superior precision for critical joints, enhancing overall assembly integrity and minimizing maintenance needs in industrial screw applications.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNC coarse thread spacing. It is manufactured in compliance with ASME B18.3 specifications and meets environmental regulations such as RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances. The 1/2" length and fully threaded design provide consistent performance, backed by material certifications for reliability in professional use.