S-91802A542 1/4"-20 x 1" ASME B18.6.3 Stainless Steel Phillips Oval Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from passivated 18-8 stainless steel construction, ideal for harsh environments
• Exceptional tensile strength rated at 80,000 psi for reliable load-bearing performance
• Optimized thread engagement with fully threaded 1/4"-20 UNC coarse design for maximum holding power
• Consistent drive performance with No. 3 Phillips head for secure installation and removal
• Precision oval head profile provides flush seating and enhanced aesthetic finish
• Industry-standard compliance with ASME B18.6.3 specifications for guaranteed interchangeability
• Environmental regulation compliance with RoHS 3 and REACH for safe industrial use

Professional Applications & Engineering Value

These passivated 18-8 stainless steel oval head screws deliver critical corrosion protection where moisture, chemicals, or outdoor exposure threaten fastener integrity. The fully threaded 1/4"-20 UNC coarse thread design ensures maximum thread contact in both soft and hard materials, preventing loosening under vibration while providing superior pull-out resistance. The oval head profile with standard countersink creates a smooth, finished appearance while the No. 3 Phillips drive offers reliable torque transmission during installation. Ideal for industrial machinery, marine equipment, food processing systems, and architectural applications where both corrosion resistance and structural reliability are paramount.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit for consistent dimensional accuracy. Features 1/4"-20 UNC coarse threads with full threading along the 1" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Material certification includes Rockwell B80 hardness and 80,000 psi tensile strength verification.