S-92703A131 1/4"-20 x 3/8" ASME B18.3 Stainless Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh environments
• Maximum torque transmission and reduced cam-out risk using the Torx Plus IP30 drive system
• High tensile strength of 60,000 psi ensures reliable performance under heavy loads
• Precise Class 3A thread fit provides secure, vibration-resistant fastening in critical assemblies
• 82° countersink angle and flat head design enables flush mounting for clean, professional finishes
• Full compliance with ASME B18.3 standards guarantees dimensional accuracy and interchangeability
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 1/4"-20 UNC flat head screws solve critical fastening challenges in machinery, aerospace, and marine equipment. The 18-8 stainless steel material combined with passivated finish provides exceptional resistance to corrosion and chemical exposure, extending service life in aggressive environments. The Torx Plus drive system delivers superior torque transfer while minimizing tool wear and fastener damage. With Class 3A thread fit and coarse thread spacing, these screws ensure rapid installation and secure holding power in high-vibration applications, making them ideal for precision assemblies requiring reliable, long-term performance.

Specification Summary & Compliance

This fastener maintains Class 3A thread fit per UNC standards with 1/4"-20 thread size and coarse thread spacing. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy. The screw meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Material properties include Rockwell B70 hardness and 60,000 psi tensile strength for consistent performance.