S-92655A679 7/8"-9 x 4 3/4" ASTM A193 18-8 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications
18-8 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications
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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 with 18-8 Stainless Steel construction, ideal for harsh industrial environments
- High tensile strength of 75,000 psi ensures reliable performance under heavy loads and stress
- Rockwell B96 hardness rating provides superior durability and wear resistance
- Coarse UNC threading with Class 2A fit enables quick assembly and secure fastening
- External hex drive design allows for easy installation with standard tools
- Partial threading with 2¾" grip length offers optimal clamping force distribution
- ASTM A193 Grade B8 certification guarantees material quality and performance consistency
Professional Applications & Engineering Value
These 7/8"-9 UNC hex head screws deliver critical engineering solutions where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition provides excellent protection against rust and chemical degradation, making them ideal for chemical processing, marine applications, and food processing equipment. The coarse thread design ensures reliable performance in vibration-prone environments, while the partial threading configuration prevents thread damage during installation and provides superior clamping force. With ASTM A193 Grade B8 certification and 75,000 psi tensile strength, these fasteners meet the demanding requirements of pressure vessel applications, structural assemblies, and heavy machinery where failure is not an option.
Specification Summary & Compliance
This hex head screw features precise Class 2A thread fit tolerances with UNC coarse threading (7/8"-9) and measures 4¾" in total length with 2" threaded portion. Manufactured in compliance with ASTM A193 specification for Grade B8 stainless steel, the fastener meets industry standards for high-temperature service applications. The product conforms to RoHS and REACH environmental regulations, ensuring safe use across various industrial sectors while maintaining consistent dimensional accuracy and mechanical properties.
