S-92505A191 8-32 x 5/16" ASME B18.3, ASTM F912 Set Screws

Set Screws

0657FA00015 Set Screws
0657FA00015 Set Screws

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

Part No.
Part No. 0657FA00015
Equivalent to mcmaster :
92505A191

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 Black-Oxide Alloy Steel
Hardness Rockwell C45

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.3, ASTM F912
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 holding power with Class 3A thread fit for secure, vibration-resistant fastening in demanding applications.
  • Enhanced corrosion resistance from the Black Oxide finish, extending service life in various industrial environments.
  • Superior strength and durability provided by Alloy Steel with a Rockwell C45 hardness, resisting wear and deformation.
  • Reliable installation and removal with the 5/64" Hex Drive, allowing for high torque application without slippage.
  • Optimized for precise positioning thanks to the extended tip design, ensuring positive engagement with the mating part.
  • Broad compatibility with 8-32 UNC coarse threads, making it a versatile choice for machinery and assemblies.
  • Compliance with major industry standards including ASME B18.3, ensuring consistent quality and performance.

Professional Applications & Engineering Value

This 8-32 UNC set screw is engineered to address critical challenges in industrial assembly, such as component slippage and loosening under vibration. Manufactured from Black Oxide Alloy Steel, it offers a robust combination of high tensile strength and corrosion resistance, ideal for use in motors, gears, and precision machinery where reliable positioning is paramount. The extended tip and Class 3A thread fit provide maximum grip and minimal backlash, ensuring that parts remain securely locked in place. Its headless design and 5/64" hex drive facilitate flush mounting and easy access in confined spaces, making it a preferred choice for engineers seeking a dependable, high-performance set screw that meets rigorous application demands.

Specification Summary & Compliance

This set screw adheres to precise dimensional standards, including an 8-32 UNC coarse thread with a Class 3A thread fit for superior accuracy and engagement. It is manufactured in compliance with ASME B18.3 specifications, ensuring consistent quality and performance. Additionally, the product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming its adherence to environmental and safety regulations for use in various industrial and international markets.

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