S-92800A434 7/8"-9 x 3 1/2" 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel Hex Head 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
- Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and stress.
- Rockwell B70 hardness provides superior durability and resistance to wear and deformation.
- Coarse UNC threading with Class 2A fit allows for quick assembly and secure fastening in a wide range of materials.
- Fully threaded design offers maximum grip and holding power along the entire 3-1/2" length.
- External hex drive and large 1-5/16" head enable easy installation with standard tools and high torque application.
- Compliance with RoHS 3 and REACH standards ensures environmental safety and regulatory acceptance for global markets.
Professional Applications & Engineering Value
This 7/8"-9 UNC hex head screw in 18-8 stainless steel is engineered to address critical challenges in heavy-duty industrial applications. Its coarse thread design and Class 2A fit provide excellent engagement in softer materials or where vibration resistance is needed, reducing the risk of loosening. The fully threaded configuration ensures consistent clamping force across the entire 3-1/2" length, making it ideal for structural assemblies, machinery frames, and construction projects. The external hex drive and substantial head width facilitate efficient installation with common wrenches, saving time in high-volume operations. Combined with 80,000 psi tensile strength and corrosion-resistant properties, this screw delivers long-term reliability in demanding environments such as marine, chemical processing, and outdoor infrastructure.
Specification Summary & Compliance
This hex head screw features a 7/8"-9 UNC coarse thread with Class 2A dimensional accuracy, ensuring consistent fit and performance. It is manufactured from 18-8 stainless steel with a Rockwell B70 hardness and 80,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for use in regulated industries and international supply chains.
