S-92790A689 1"-8 x 6" ASTM A193 Super-Corrosion-Resistant 316 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications

Super-Corrosion-Resistant 316 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications

0263FA00069 Super-Corrosion-Resistant 316 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications
0263FA00069 Super-Corrosion-Resistant 316 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications

Image may differ from product. See technical specification for details.

Part No.
Part No. 0263FA00069
Equivalent to mcmaster :
92790A689

Basic Information

System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 1 5/8"
Head Height 39/64"

Dimensions

Length 6"
Grip Length 3 3/4"

Thread Parameters

Thread Type UNC
Thread Size 1"-8
Thread Diameter 1"
Thread Spacing Coarse
Thread Length 2 1/4"
Thread Direction Right Hand
Thread Fit Class 2A
Threading Partially Threaded

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material 316 Stainless Steel
Hardness Rockwell B96
Fastener Strength Grade/Class ASTM Grade B8M
Tensile Strength 75000 psi

Temperature & Environment

Specifications Met ASTM A193
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Exceptional corrosion resistance thanks to 316 stainless steel construction, ideal for harsh chemical and marine environments
  • High tensile strength of 75,000 psi ensures reliable performance under heavy loads and in demanding industrial applications
  • Superior durability and material integrity provided by Rockwell B96 hardness and ASTM Grade B8M classification
  • Optimized for easy installation and secure grip with a 3 3/4" grip length and coarse 1"-8 UNC threading
  • Precise Class 2A thread fit guarantees consistent engagement and reduces the risk of cross-threading during assembly
  • Versatile partial threading design allows for effective clamping across a 2 1/4" threaded section on the 6" long body
  • Compliance with ASTM A193 specifications assures quality and reliability for high-temperature or high-pressure service

Professional Applications & Engineering Value

Engineered for industrial applications where both corrosion resistance and high tensile strength are non-negotiable, this Grade B8M hex head screw solves critical challenges in chemical processing, marine equipment, and offshore installations. The 316 stainless steel material provides excellent protection against pitting and chloride attack, while the 1"-8 UNC coarse thread and external hex drive enable rapid, high-torque installation even in hard-to-reach areas. Its partially threaded design concentrates clamping force effectively, preventing joint loosening under vibration. This ASTM A193 compliant fastener is a trusted solution for pressure vessels, valve assemblies, and structural connections that demand long-term reliability in aggressive environments.

Specification Summary & Compliance

This hex head screw adheres to precise dimensional standards, featuring a Class 2A thread fit for consistent assembly and 1"-8 UNC coarse threading per inch-system requirements. Manufacturing and material quality comply with ASTM A193 for high-strength, high-temperature service. The 316 stainless steel composition ensures compliance with RoHS and REACH environmental directives, making it suitable for global industrial supply chains.

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