S-91770A897 1/4"-28 x 2" ASME B18.6.3 Stainless Steel Truss Head Phillips Screws
Stainless Steel Truss Head Phillips Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh environments and extended service life
- Enhanced load distribution due to the wide truss head design, reducing surface damage and improving clamping force
- High tensile strength of 70,000 psi ensures reliable performance in demanding mechanical applications
- Precise Class 2A thread fit provides smooth assembly and consistent engagement with mating components
- Full UNF fine threading offers superior vibration resistance and improved fastening security
- Optimized Phillips No. 3 drive allows for efficient installation with standard tools while minimizing cam-out
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental responsibility
Professional Applications & Engineering Value
These passivated 18-8 stainless steel rounded truss head screws deliver exceptional durability and reliability in critical industrial settings. The UNF fine threading and Class 2A fit ensure tight, secure connections that resist loosening under vibration, making them perfect for machinery, automotive assemblies, and electronic enclosures. The wide truss head distributes clamping force evenly, preventing surface damage on softer materials. With 70,000 psi tensile strength and Rockwell B70 hardness, they withstand high-stress applications while the passivated finish provides long-term corrosion resistance in humid or chemical-exposed environments. Engineered to meet ASME B18.6.3 standards, these screws offer consistent performance for OEM and MRO needs.
Specification Summary & Compliance
This screw features a 1/4"-28 UNF fine thread with Class 2A tolerance for precise fit, fully threaded along a 2" length. Manufactured in compliance with ASME B18.6.3 specifications, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global markets.
