S-94356A131 1/4"-20 x 1" Stainless Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional durability in harsh environments thanks to A286 stainless steel construction offering superior corrosion resistance.
• High-reliability fastening for critical applications with a robust 130,000 psi tensile strength and Rockwell C24 hardness.
• Secure, cam-out resistant installation enabled by the Torx T30 drive, ensuring precise torque application.
• Superior thread engagement and vibration resistance from the Class 3A UNC coarse thread fit, providing a tight, secure connection.
• Flush, low-profile mounting with an 82° countersink angle and standard flat head profile for a smooth finished surface.
• Full-length holding power as the screw is fully threaded along its 1-inch length for maximum grip.
• Compliance with global environmental standards, being RoHS 3 and REACH compliant for use in regulated industries.

Professional Applications & Engineering Value

These 1/4"-20 UNC flat head screws are engineered with A286 stainless steel to solve critical challenges in demanding industrial settings. The material's inherent corrosion resistance and high tensile strength of 130,000 psi make these Torx drive screws ideal for applications where failure is not an option, such as in aerospace, automotive, and heavy machinery. The Class 3A thread fit ensures a precise, vibration-resistant assembly, reducing maintenance needs and downtime. The 82° countersink angle and flat head design allow for a seamless finish in countersunk holes, which is crucial for aerodynamic surfaces or components requiring a smooth profile. This combination of high-strength material and precision threading delivers long-term reliability and performance under stress.

Specification Summary & Compliance

This product features a 1/4"-20 UNC coarse thread with a Class 3A thread fit for high precision. The screws are fully threaded and right-hand direction, with standard dimensions including a 0.531" head diameter and 1" length. Manufacturing adheres to common industrial standards for flat head screws, and the product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global markets.