S-96452A535 1/4"-20 x 3/8" ASME B18.3, ASTM F835 Steel Button Head Torx Plus Screws

Key Features & Benefits at a Glance

• Superior torque transmission with Torx Plus IP27 drive for reduced cam-out and enhanced tool engagement during high-stress applications
• Exceptional corrosion resistance provided by black-oxide coating on alloy steel, extending service life in demanding industrial environments
• High mechanical strength with 120,000 psi tensile strength and Rockwell C39 hardness for reliable performance under heavy loads
• Precise thread engagement through Class 3A UNC coarse threads ensuring secure fastening and vibration resistance
• Streamlined installation with fully threaded design and rounded button head profile for flush mounting and reduced snagging
• Regulatory compliance meeting ASME B18.3 standards while being RoHS 3 and REACH compliant for global industrial use
• Optimized head dimensions (0.437" diameter, 0.132" height) providing ample drive surface while maintaining low-profile installation

Professional Applications & Engineering Value

Engineered for high-torque industrial applications, these black-oxide alloy steel screws solve critical fastening challenges in machinery assembly, automotive systems, and heavy equipment. The Torx Plus IP27 drive system eliminates tool slippage common in Phillips or standard Torx drives, while the Class 3A UNC coarse threads provide rapid installation and superior vibration resistance in high-stress environments. The rounded button head design creates a flush finish that prevents snagging in moving components, and the fully threaded 3/8" length ensures maximum engagement in thin materials. These industrial-grade screws maintain integrity under extreme mechanical stress while the black-oxide surface treatment resists corrosion in harsh operating conditions.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit for superior engagement and UNC coarse threading (1/4"-20) for rapid assembly. Complies with ASME B18.3 specifications (ASTM F835) for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for environmental and safety standards. Features right-hand thread direction with standard rounded head profile and IP27/T27 drive compatibility.