S-91770A478 10-32 x 7/8" ASME B18.6.3 Stainless Steel Truss Head Phillips Screws
Stainless Steel Truss 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
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable, long-term performance
- Optimized drive engagement via Phillips No. 2 drive, reducing cam-out and enabling efficient installation
- Precise thread fit with Class 2A UNF fine threads, ensuring secure fastening and vibration resistance
- Enhanced load distribution from the wide rounded truss head design, minimizing surface damage and pull-through
- Full threading along the 7/8" length provides maximum grip and adjustability in various material thicknesses
- Compliance with major industry standards including ASME B18.6.3, RoHS 3, and REACH for guaranteed quality and safety
Professional Applications & Engineering Value
Engineered for demanding applications, this 10-32 UNF screw with a rounded truss head and Phillips drive delivers exceptional performance in assembly lines, machinery, and electronic enclosures. The passivated 18-8 stainless steel offers excellent resistance to oxidation and chemicals, reducing maintenance costs in corrosive settings. Its fine UNF threads and Class 2A fit provide superior holding power, preventing loosening under vibration—common in automotive and aerospace components. The wide truss head distributes clamping force evenly, protecting sensitive surfaces. Fully threaded for versatile use, it ensures consistent fastening in industrial screws applications where precision and durability are critical.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit per UNF standards, ensuring precise dimensional accuracy. Manufactured in compliance with ASME B18.6.3 for mechanical fasteners, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances. The specifications include a 7/8" length, fully threaded design, and right-hand thread direction, supporting reliable integration in regulated industries.
