S-90340A110 1/4"-20 x 3/8" Socket Head Screws for Square-Drive Wrenches

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise thread engagement through Class 3A fit, ensuring reliable fastening and vibration resistance
• High tensile strength of 70,000 psi for demanding applications requiring robust mechanical performance
• Enhanced drive stability with square 1/4" drive and high-profile socket head design
• Full thread coverage along the 3/8" length for maximum grip and load distribution
• Compliance with RoHS 3 and REACH regulations, meeting international environmental and safety standards
• Coarse UNC threading for quick assembly and reduced cross-threading risks in repetitive operations

Professional Applications & Engineering Value

Engineered for precision-critical environments, this 18-8 stainless steel socket head cap screw delivers exceptional performance in machinery assembly, automotive systems, and industrial equipment. The Class 3A thread fit minimizes backlash and maintains clamping force under dynamic loads, while the fully threaded UNC design ensures uniform stress distribution. With a Rockwell B84 hardness and corrosion-resistant properties, it addresses common failure points like seizing and wear in high-cycle applications. The square drive system provides superior torque transmission, reducing tool slippage during installation in confined spaces.

Specification Summary & Compliance

This socket head cap screw adheres to UNC coarse thread standards with a precise Class 3A thread fit for tight tolerances. Dimensions include a 1/4"-20 thread size, 3/8" length, and 7/16" head diameter. Manufactured from 18-8 stainless steel with a tensile strength of 70,000 psi, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.