S-95955A254 6-32 x 1" Left-Hand-Thread Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Secure, non-slip installation using a 5/64" hex drive that prevents tool slippage and ensures precise torque application
• Reliable left-hand threading for specialized applications where reverse-direction fastening is required to prevent loosening
• High tensile strength of 80,000 psi provides superior load-bearing capacity and structural integrity
• Class 2A thread fit ensures consistent, easy assembly with standard UNC coarse thread nuts and components
• Fully threaded design offers maximum grip and holding power along the entire 1" length
• Compliant with RoHS 3 and REACH regulations for safe, environmentally responsible use in global markets

Professional Applications & Engineering Value

This 6-32 left hand thread screw is engineered to address specific mechanical challenges in industrial settings where standard right-hand threads may loosen under counter-clockwise motion or vibration. The UNC coarse threading provides faster assembly and reduced cross-threading risk, while the rounded button head offers a low-profile, snag-resistant finish for applications in machinery, automotive assemblies, and electronic enclosures. Made from 18-8 Stainless Steel, it delivers consistent performance in corrosive or high-moisture environments, and the hex drive ensures reliable torque transfer without cam-out. Its left-hand direction is critical for securing components on rotating shafts or in safety-critical reverse-thread applications, providing engineers with a dependable, specification-compliant fastening solution.

Specification Summary & Compliance

This screw meets UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy and interchangeability. It is manufactured from 18-8 Stainless Steel, achieving a hardness of Rockwell B85 and 80,000 psi tensile strength. The product is fully threaded and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted substances and suitable for use in regulated industrial and consumer goods.