S-91400A536 1/4"-20 x 3/8" FF-S-92, QQ-P-35, MS51957-77 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- High tensile strength of 80,000 PSI ensures reliable performance under demanding mechanical loads
- Fully threaded UNC coarse thread design provides faster installation and superior holding power
- Class 2A thread fit guarantees consistent, precision mating with standard nuts and threaded components
- Phillips No. 3 drive system enables efficient installation with common industrial tools
- Pan head profile with rounded edges offers secure seating while minimizing surface damage
- Full regulatory compliance including RoHS 3 and REACH for global market acceptance
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 1/4-20 UNC pan head machine screws deliver exceptional value in assembly operations where corrosion resistance and mechanical reliability are critical. The passivated 18-8 stainless steel construction provides superior protection against oxidation and chemical exposure, making them ideal for manufacturing equipment, electrical enclosures, and outdoor installations. The coarse thread configuration ensures rapid installation in various materials while maintaining vibration resistance. With 80,000 PSI tensile strength and fully threaded design, these screws distribute load evenly across the entire fastener length, preventing stress concentration and extending service life in high-vibration environments common in industrial machinery and automotive applications.
Specification Summary & Compliance
This 1/4-20 UNC machine screw features precision Class 2A thread fit with standard inch measurements including 3/8" length and 0.492" head diameter. Manufacturing complies with Fed. Spec. FF-S-92, QQ-P-35, and MS51957-77 standards, ensuring consistent quality and dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety requirements for industrial components.
