S-95345A067 8-32 x 5/16" ASME B18.13 Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

Key Features & Benefits at a Glance

• Superior Vibration Resistance: Integrated internal-tooth lock washer ensures reliable, long-term fastening in high-vibration environments, preventing loosening under stress.
• Excellent Corrosion Protection: Constructed from 18-8 Stainless Steel with a passivated finish, offering enhanced durability against rust and harsh industrial conditions.
• High Tensile Strength: With a tensile strength of 70,000 psi, this screw provides robust clamping force and structural integrity for demanding applications.
• Secure and Easy Installation: No. 2 Phillips drive and fully threaded coarse UNC design allow for quick, straightforward assembly with standard tools.
• Dual-Material Durability: Combines an 18-8 stainless steel screw with a 410 stainless steel lock washer, both passivated, for consistent performance and corrosion resistance.
• Wide Compatibility: Coarse 8-32 UNC threads with Class 2A fit ensure easy engagement and reliable performance in various materials and assemblies.
• Regulatory Compliance: Meets ASME B18.13 specifications and is RoHS 3 and REACH compliant, ensuring safety and environmental standards for global use.

Professional Applications & Engineering Value

This 8-32 UNC rounded head screw with an integrated internal-tooth lock washer is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in harsh environments. Made from 18-8 stainless steel and featuring a passivated finish, it resists oxidation and chemical exposure, making it ideal for applications in machinery, electronics, and outdoor equipment. The coarse thread design and fully threaded body ensure quick installation and strong grip in various substrates, while the lock washer provides consistent clamping force. This combination reduces maintenance needs and enhances assembly reliability in industrial fastening scenarios, from automotive to consumer goods, where secure, long-term performance is critical.

Specification Summary & Compliance

This screw features precise 8-32 UNC coarse threads with a Class 2A fit for standard tolerance and easy assembly. It is manufactured in compliance with ASME B18.13 specifications and adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity. The design includes a rounded pan head with a No. 2 Phillips drive and a fully threaded length of 5/16", supported by a lock washer made from 410 stainless steel for added reliability.