S-94356A128 1/4"-20 x 1/2" Stainless Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional Durability in Harsh Environments: Made from A286 stainless steel, this screw offers superior corrosion resistance and maintains integrity under high-stress conditions.
• High-Torque Assembly with Reduced Cam-Out: The T30 Torx drive provides excellent torque transmission, minimizing tool slippage and head stripping for reliable, efficient installations.
• Superior Load-Bearing Capacity: With a 130,000 psi tensile strength and Rockwell C24 hardness, it withstands extreme mechanical loads without failure.
• Precise, Secure Fastening Fit: Class 3A thread fit ensures tight tolerances and vibration resistance, crucial for critical assemblies requiring minimal play.
• Optimized for Flush Mounting: The standard flat head with 82° countersink angle allows for a smooth, unobtrusive finish in countersunk holes.
• Enhanced Assembly Speed and Reliability: Fully threaded UNC coarse spacing enables quick engagement and strong holding power in a variety of materials.
• Compliance with Global Environmental Standards: Meets RoHS 3 and REACH regulations, ensuring safety and environmental responsibility in industrial applications.

Professional Applications & Engineering Value

This high-strength A286 stainless steel flat head screw is engineered to solve critical challenges in demanding sectors like aerospace, automotive, and heavy machinery. Its 130,000 psi tensile strength and Rockwell C24 hardness prevent stripping and shearing under dynamic loads, while the T30 Torx drive ensures precise torque application, reducing assembly errors. The Class 3A UNC coarse thread and fully threaded design provide rapid installation and robust clamping force, ideal for applications where vibration resistance and reliability are paramount. The 82° countersink angle and flat head profile deliver a flush finish, enhancing aesthetics and safety in exposed assemblies. By integrating RoHS 3 and REACH compliance, this fastener supports sustainable manufacturing without compromising performance.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNC coarse thread spacing (1/4"-20). It is manufactured in accordance with inch system measurements and features a right-hand thread direction. Compliance is confirmed with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.