S-92198A317 5/16"-24 x 4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel Hex Head 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 from 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
- Precise fine threading (5/16"-24 UNF) provides superior vibration resistance and secure fastening in critical assemblies
- Optimized partial threading design allows for maximum grip length while reducing weight and material usage
- Standard-compliant manufacturing ensures perfect compatibility with existing industrial equipment and replacement parts
- External hex drive with 1/2" head width delivers excellent torque transmission and easy installation with common tools
- Full regulatory compliance including RoHS 3 and REACH for global market acceptance and environmental safety
Professional Applications & Engineering Value
This 18-8 stainless steel hex head screw delivers exceptional engineering value through its combination of corrosion-resistant material and precision UNF fine threading. The partially threaded design provides optimal clamping force distribution while the external hex drive ensures reliable torque application in confined spaces. Engineered to solve common industrial challenges, this fastener maintains integrity in high-vibration applications, chemical processing equipment, and marine environments where stainless steel's durability prevents premature failure. The 4" length and Class 2A thread fit guarantee precise alignment in structural assemblies, machinery frames, and heavy equipment where dimensional accuracy is critical for operational safety and longevity.
Specification Summary & Compliance
Manufactured to ASME B18.2.1 specifications with Class 2A thread fit tolerance ensuring precise dimensional accuracy. Features 5/16"-24 UNF fine threading with right-hand direction and 7/8" minimum thread length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming suitability for international industrial markets and environmentally conscious manufacturing operations.
