S-94414A540 1/4"-20 x 3/4" ASME B18.3, ASTM F835 Alloy Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide coating, ideal for harsh industrial environments
• Superior torque transmission and reduced cam-out thanks to the Torx Plus IP30 drive system
• Exceptional tensile strength of 140,000 psi for reliable performance in high-stress applications
• High durability and wear resistance provided by Rockwell C39 hardness Alloy Steel
• Precise and secure fastening ensured by Class 3A thread fit for minimal backlash
• Broad compatibility and easy installation with standard UNC coarse threads and 82° countersink angle
• Full regulatory compliance meeting ASME B18.3, RoHS 3, and REACH for safe, global use

Professional Applications & Engineering Value

Engineered for demanding industrial assemblies, these Black-Oxide Alloy Steel flat head screws deliver unmatched reliability in machinery, automotive, and heavy equipment applications. The Torx Plus IP30 drive minimizes tool slippage, enhancing operator safety and efficiency during high-torque installations. With a fully threaded UNC design and Class 3A thread fit, they provide consistent clamping force and vibration resistance, critical for dynamic load conditions. The 82° countersink angle ensures a flush finish, reducing protrusion risks in compact spaces. These high-strength fasteners are built to withstand extreme environments, offering long-term performance where corrosion and mechanical stress are concerns.

Specification Summary & Compliance

This fastener features a 1/4"-20 UNC coarse thread with Class 3A precision fit, ensuring tight tolerances per ASME B18.3 specifications. It is manufactured from Alloy Steel with a black-oxide surface treatment for added corrosion protection. Full compliance is maintained with ASME B18.3 (ASTM F835), RoHS 3 (2015/863/EU), and REACH (EC 1907/2006) regulations, guaranteeing safety and environmental standards are met for industrial use.