S-95345A614 1/4"-20 x 1 1/2" ASME B18.13 Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

Key Features & Benefits at a Glance

• Superior vibration resistance with an integrated internal-tooth lock washer made from 410 stainless steel, preventing loosening under dynamic loads.
• Excellent corrosion resistance thanks to the passivated finish on both the 18-8 stainless steel screw and 410 stainless steel washer, ideal for harsh environments.
• High tensile strength of 70,000 psi ensures reliable, durable fastening for demanding industrial applications.
• Easy installation and removal with a No. 3 Phillips drive and a rounded pan head design, reducing tool slippage and assembly time.
• Wide compatibility with 1/4"-20 UNC coarse threads and Class 2A fit, providing secure engagement in a variety of materials.
• Fully threaded shank offers consistent clamping force along the entire 1-1/2" length for maximum holding power.
• Compliance with industry standards including ASME B18.13, RoHS 3, and REACH, ensuring quality and environmental safety.

Professional Applications & Engineering Value

Engineered for reliability in industrial applications, this rounded head Phillips screw with an internal-tooth lock washer addresses common issues like vibration-induced loosening and corrosion. The combination of 18-8 stainless steel and a passivated finish provides long-lasting protection against rust and chemical exposure, making it suitable for machinery, automotive assemblies, and outdoor equipment. The UNC coarse thread and Class 2A fit ensure quick, secure installation in metals and plastics, reducing the risk of cross-threading. With a 70,000 psi tensile strength, it delivers robust performance in high-stress environments, minimizing maintenance needs and downtime. This screw is ideal for B2B procurement where durability, compliance, and ease of use are critical.

Specification Summary & Compliance

This screw features precise 1/4"-20 UNC coarse threads with a Class 2A fit for standard tolerance, ensuring reliable engagement. It is manufactured in accordance with ASME B18.13 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards. The components, including the internal-tooth lock washer, are made from stainless steel with a passivated finish for enhanced durability and corrosion resistance.