S-91772A540 1/4"-20 x 3/4" ASME B18.6.3 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 70,000 psi ensures reliable performance under heavy loads and vibration
- Rockwell B70 hardness provides excellent durability and resistance to wear during installation and use
- Fully threaded UNC coarse design delivers faster installation and superior holding power in various materials
- Class 2A thread fit guarantees consistent, precise engagement with standard nuts and tapped holes
- Pan head with No. 3 Phillips drive offers a balanced profile for secure tool engagement and flush mounting
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality, safety, and environmental standards are met
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this 1/4"-20 pan head Phillips screw addresses critical challenges in machinery assembly, electrical enclosures, and structural frameworks. The passivated 18-8 stainless steel provides exceptional resistance to oxidation and chemical exposure, reducing maintenance costs in corrosive settings. Its UNC coarse thread and fully threaded design enhance grip in soft metals and plastics, preventing stripping and ensuring long-term joint integrity. The rounded pan head distributes clamping force evenly, while the No. 3 Phillips drive simplifies installation with standard tools, improving assembly efficiency in high-volume production lines.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy. It is manufactured in compliance with ASME B18.6.3 standards, ensuring reliable mechanical properties and interchangeability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting strict environmental and safety regulations for hazardous substances.
