S-91241A543 6-32 x 5/8" ASME B18.13 Stainless Steel Pan Head Phillips Screws with Spring Lock Washer

Key Features & Benefits at a Glance

• Vibration-resistant locking with integrated spring lock washer prevents loosening under dynamic loads
• Superior corrosion resistance through 18-8 stainless steel construction and passivated surface treatment
• High-strength performance with 70,000 psi tensile strength and Rockwell B80 hardness for demanding applications
• Reliable thread engagement with fully threaded UNC coarse pattern and Class 2A fit for consistent fastening
• Quick installation using standard Phillips No. 2 drive with rounded pan head design
• Dual-material durability featuring 410 stainless steel washer for matched corrosion protection
• Regulatory compliance meeting ASME B18.13 specifications and international environmental standards

Professional Applications & Engineering Value

These 6-32 UNC screws with spring lock washers solve critical vibration-induced loosening problems in industrial equipment, machinery, and electronic enclosures. The 18-8 stainless steel core provides excellent stress resistance while the passivated finish ensures long-term corrosion protection in harsh environments. The fully threaded design maximizes grip length, while the spring lock washer maintains clamp force under cyclic loading. Ideal for assembly lines, manufacturing equipment, and outdoor applications where reliability is paramount, these fasteners deliver consistent performance through precise Class 2A thread fit and standardized Phillips drive compatibility.

Specification Summary & Compliance

Manufactured to ASME B18.13 specifications with Class 2A thread fit and UNC coarse threading. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features include 6-32 thread size, 5/8" length, 0.27" head diameter, and spring lock washer with 0.32" OD. All components manufactured from stainless steel with passivated finish for consistent corrosion protection.