S-92505A240 10-24 x 3/8" ASME B18.3, ASTM F912 Set Screws

Set Screws

0657FA00021 Set Screws
0657FA00021 Set Screws

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

Part No.
Part No. 0657FA00021
Equivalent to mcmaster :
92505A240

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 3/8"

Thread Parameters

Thread Type UNC
Thread Size 10-24
Thread Diameter 0.19"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Extended
Tip Length 0.049"
Tip Length Tolerance -0.005" to 0"
Tip Diameter 0.127"
Tip Diameter Tolerance -0.007" to 0"
Drive Style Hex
Drive Size 3/32"

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
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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 on Alloy Steel, extending service life in various industrial environments.
  • Superior tip engagement with the extended tip design for increased surface contact and grip, preventing component slippage.
  • High-strength durability backed by Rockwell C45 hardness, ensuring the screw withstands high torque and repeated use without stripping.
  • Easy installation and removal using the 3/32" hex drive, allowing for efficient assembly and maintenance with standard tools.
  • Reliable coarse UNC threading for quicker installation and robust performance in a wide range of materials.
  • Compliance with major industry standards including ASME B18.3, ensuring consistent quality and interoperability.

Professional Applications & Engineering Value

This 10-24 UNC set screw is engineered to address critical challenges in industrial assembly, such as loosening under vibration and corrosion in harsh conditions. The Black Oxide Alloy Steel construction provides a protective layer that resists rust, while the extended tip increases gripping force on shafts, collars, and pulleys, minimizing movement in machinery. With a coarse thread and Class 3A fit, it offers precise tolerances for reliable performance in automotive, aerospace, and manufacturing equipment. The headless design and hex drive facilitate flush mounting and easy access in confined spaces, making it ideal for permanent or adjustable fixtures that demand high strength and durability.

Specification Summary & Compliance

This set screw adheres to Class 3A thread fit for high precision and UNC coarse thread standards with a 10-24 size. It meets ASME B18.3 specifications for dimensional accuracy and is manufactured from Alloy Steel with a Rockwell C45 hardness. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances for safe use in global industrial markets.

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