S-92845A191 8-32 x 5/16" ASME B18.3 Set Screws

Set Screws

0658FA00015 Set Screws
0658FA00015 Set Screws

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

Part No.
Part No. 0658FA00015
Equivalent to mcmaster :
92845A191

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 5/16"

Thread Parameters

Thread Type UNC
Thread Size 8-32
Thread Diameter 0.164"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Extended
Tip Length 0.043"
Tip Length Tolerance -0.005" to 0"
Tip Diameter 0.109"
Tip Diameter Tolerance -0.006" to 0"
Drive Style Hex
Drive Size 5/64"

Material & Strength

Material 18-8 Stainless Steel
Hardness Rockwell B80

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.3
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
  • Exceptional holding power and vibration resistance due to the Class 3A thread fit, ensuring a secure and precise fit in critical assemblies.
  • Easy installation and high torque capability with the internal hex drive (5/64"), allowing for efficient assembly in confined spaces.
  • Enhanced grip and anti-loosening performance from the extended tip design, which bites into the shaft for a more permanent lock.
  • High durability and wear resistance provided by the Rockwell B80 hardness, suitable for demanding industrial applications.
  • Wide compatibility and reliable performance with the standard 8-32 UNC coarse thread, ensuring easy sourcing and interchangeability.
  • Compliance with global environmental and safety standards including RoHS 3 and REACH, making it suitable for regulated industries.

Professional Applications & Engineering Value

This 8-32 UNC set screw is engineered to address common industrial challenges such as component slippage and vibration-induced loosening in machinery. Made from 18-8 stainless steel, it offers excellent corrosion resistance, making it ideal for applications in moist or chemically aggressive environments like automotive assemblies, electrical enclosures, and precision instruments. The hex headless design and extended tip provide a flush finish and improved gripping action, ensuring that parts remain securely locked without protruding elements. Its Class 3A thread fit and coarse thread spacing deliver tight tolerances and easy installation, reducing assembly time and enhancing overall system reliability in industrial set screws applications.

Specification Summary & Compliance

This set screw features precise dimensions including a thread size of 8-32 UNC with Class 3A thread fit for high accuracy, a length of 5/16", and an extended tip with specified tolerances. It conforms to ASME B18.3 manufacturing standards, ensuring consistent quality and performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible and safe usage in various industries.

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