S-95345A566 10-32 x 1/2" ASME B18.13 Stainless Steel Pan Head Phillips Screws with External-Tooth Lock Washer

Key Features & Benefits at a Glance

• Vibration-resistant locking with an integrated external-tooth lock washer that prevents loosening under dynamic loads, ensuring long-term joint integrity.
• Superior corrosion resistance from 18-8 stainless steel construction and passivated finish, ideal for harsh or humid industrial environments.
• High tensile strength of 70,000 psi provides reliable clamping force and durability for demanding mechanical assemblies.
• Secure and efficient installation with a No. 2 Phillips drive and standard pan head design, allowing for quick, tool-compatible fastening.
• Precision threading with Class 2A fit ensures smooth engagement and consistent performance in UNF fine-thread applications.
• Full threading along the 1/2" length offers maximum grip and adjustability in a variety of material thicknesses.
• Compatible lock washer material made from 410 stainless steel with passivated finish, maintaining corrosion resistance while enhancing locking action.

Professional Applications & Engineering Value

These 10-32 UNF pan head machine screws with integrated external-tooth lock washers are engineered to solve critical challenges in vibration-prone and corrosive environments. The combination of 18-8 stainless steel and a passivated finish ensures exceptional resistance to rust and chemicals, making them suitable for outdoor equipment, marine hardware, and food processing machinery. The external-tooth lock washer bites into both the screw head and mating surface, providing a secure, vibration-proof lock that eliminates the need for additional thread-locking compounds. This design is ideal for assemblies where maintenance access is limited, offering a permanent fastening solution that reduces downtime and maintenance costs. With a fine thread spacing and Class 2A thread fit, these screws deliver precise, reliable performance in high-stress applications, from electronic enclosures to automotive components.

Specification Summary & Compliance

This screw features a 10-32 UNF thread with Class 2A fit and fine thread spacing, ensuring dimensional accuracy and compatibility with standard nuts and tapped holes. It is fully threaded and measures 1/2" in length. Manufacturing and quality adhere to ASME B18.13 specifications. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for global industrial use.