S-91785A581 5/16"-18 x 3/4" ASME B18.6.3 Stainless Steel Truss Head Slotted Screws
Stainless Steel Truss Head Slotted 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 18-8 Stainless Steel construction and passivated finish, ideal for harsh industrial environments
- Exceptional load distribution from the wide truss head design, reducing surface pressure and preventing material damage
- High tensile strength of 100,000 psi ensures reliable performance in demanding mechanical applications
- Easy installation and removal with standard slotted drive and coarse UNC threading for quick assembly
- Precise thread fit (Class 2A) provides consistent engagement and vibration resistance in right-hand threaded applications
- Full threading along the 3/4" length offers maximum grip and holding power across the entire fastener
- Compliance with ASME B18.6.3 standards guarantees dimensional accuracy and interchangeability
Professional Applications & Engineering Value
Engineered for industrial applications requiring both mechanical strength and environmental durability, this 5/16-18 UNC rounded truss head slotted screw solves critical fastening challenges. The 18-8 Stainless Steel material combined with passivated finish provides excellent resistance to oxidation and chemical exposure, extending service life in manufacturing, machinery, and outdoor equipment. The wide truss head design distributes clamping force over a larger surface area, preventing loosening under vibration and reducing the risk of damage to softer materials. With fully threaded coarse spacing and Class 2A thread fit, it ensures rapid installation and secure fastening in right-hand thread assemblies, making it ideal for maintenance, construction, and heavy-duty equipment where reliability is paramount.
Specification Summary & Compliance
This screw maintains Class 2A thread fit per UNC standards with precise dimensional control. Manufacturing follows ASME B18.6.3 specifications for consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability for industrial procurement.
