S-95092A512 8-32 x 1/4" ASME B18.13 Stainless Steel Pan Head Phillips Screws with Flat and Split Lock Washer

Key Features & Benefits at a Glance

• Superior vibration resistance with an integrated lock washer that prevents loosening in dynamic environments, ensuring long-term assembly integrity.
• Excellent corrosion resistance thanks to 18-8 Stainless Steel construction and a passivated finish, ideal for harsh or outdoor applications.
• High tensile strength of 70,000 psi provides reliable performance under mechanical stress, reducing the risk of fastener failure.
• Effortless installation with a Phillips No. 2 drive and rounded pan head design, allowing for quick and secure tightening without specialized tools.
• Precise thread engagement with UNC coarse threads and Class 2A fit, ensuring smooth driving and consistent clamping force.
• Built-in washer system combines a flat washer for load distribution and a split lock washer for secure locking, eliminating the need for separate components.
• Full threading along the 1/4" length offers maximum grip and adjustability in a variety of material thicknesses.

Professional Applications & Engineering Value

This 8-32 UNC Rounded Head Phillips Screw with Lock Washer is engineered to address common industrial challenges such as vibration-induced loosening and corrosion. The 18-8 Stainless Steel material, enhanced by a passivated finish, ensures durability in moist or chemically aggressive environments, reducing maintenance needs. The integrated lock washer and flat washer work in tandem to maintain clamp load under cyclic stresses, making these screws ideal for machinery, electronic enclosures, and automotive assemblies where reliability is critical. The coarse UNC thread and Phillips drive facilitate rapid installation in production lines, while the fully threaded design provides consistent holding power across various substrates. By combining high tensile strength with vibration-resistant features, this fastener delivers long-term performance in demanding industrial and commercial applications.

Specification Summary & Compliance

This screw features a 1/4" length with a tolerance of -0.02" to 0", UNC coarse threads with a Class 2A thread fit for standard clearance and ease of assembly. It is manufactured in compliance with ASME B18.13 specifications, ensuring dimensional consistency and reliability. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming it is free of hazardous substances and suitable for global supply chains.