S-92198A392 7/8"-9 x 3 1/2" 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and vibration
- Rockwell B70 hardness provides superior durability and resistance to wear and deformation
- Coarse UNC threading allows for faster installation and better grip in softer materials
- External hex drive and large head (1 5/16" width) enables secure, high-torque tightening with standard tools
- Class 2A thread fit offers consistent, reliable engagement while accommodating minor variations
- Partial threading design provides optimal clamping force distribution for structural applications
Professional Applications & Engineering Value
This 7/8"-9 UNC hex head screw delivers critical engineering solutions where corrosion resistance and high tensile strength are paramount. The 18-8 stainless steel composition prevents rust and degradation in demanding environments like chemical processing, marine applications, and outdoor structures. With its coarse thread pitch and partial threading, it maintains superior holding power in both soft and hard materials while resisting vibration-induced loosening. The external hex drive accommodates high torque requirements during assembly, making it ideal for heavy machinery, structural steel connections, and industrial equipment where reliability cannot be compromised. These features combine to reduce maintenance frequency and extend service life in critical applications.
Specification Summary & Compliance
This heavy-duty fastener features Class 2A thread fit per UNC standards with precise dimensional accuracy. Manufactured to ASME B18.2.1 specifications for consistent quality and interchangeability. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors. The 3-1/2" length with 2" minimum thread length provides optimal engagement for various material thicknesses.
