S-96562A542 1/4"-20 x 1" ASME B18.6.3 Thread-Locking Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with nylon patch ensures secure fastening in high-motion environments, reducing maintenance needs
• Superior corrosion resistance from 18-8 stainless steel construction and passivated finish for long-term reliability in harsh conditions
• High-strength performance with 60,000 psi tensile strength and Rockwell B70 hardness withstands heavy loads and stress
• Wide temperature tolerance from -70° to 250°F maintains integrity in extreme thermal cycling applications
• Precise thread engagement with UNC coarse thread and Class 2A fit enables quick installation and reliable holding power
• Industry-standard compliance with ASME B18.6.3 ensures dimensional accuracy and interchangeability
• Easy installation with No. 3 Phillips drive and pan head design provides efficient driving and flush seating

Professional Applications & Engineering Value

This nylon patch locking pan head screw delivers critical vibration resistance for industrial machinery, automotive assemblies, and electrical enclosures where loosening under dynamic loads compromises safety. The 18-8 stainless steel core combined with passivated finish resists chemical exposure and galvanic corrosion in manufacturing environments. With UNC coarse threads and full threading, it achieves faster installation and superior pull-out strength in metals and plastics. The Class 2A thread fit maintains consistent clamping force while the temperature-resistant nylon patch (-70° to 250°F) secures joints in thermal expansion scenarios. Engineered to ASME B18.6.3 specifications, this rounded head screw solves reliability challenges in assembly lines and precision equipment.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 standards with Class 2A thread fit for precise dimensional tolerance. Features UNC 1/4"-20 coarse threads and full threading for optimal engagement. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The nylon patch locking mechanism maintains performance across specified temperature ranges while meeting industrial fastener requirements.