S-92845A764 3/8"-24 x 3/4" ASME B18.3 Set Screws

Set Screws

0658FA00097 Set Screws
0658FA00097 Set Screws

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

Part No.
Part No. 0658FA00097
Equivalent to mcmaster :
92845A764

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 3/4"

Thread Parameters

Thread Type UNF
Thread Size 3/8"-24
Thread Diameter 0.375"
Thread Spacing Fine
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Extended
Tip Length 0.099"
Tip Length Tolerance -0.005" to 0"
Tip Diameter 0.25"
Tip Diameter Tolerance -0.009" to 0"
Drive Style Hex
Drive Size 3/16"

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
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments.
  • Exceptional holding power provided by the Class 3A thread fit, ensuring tight, secure, and vibration-resistant fastening.
  • Enhanced grip and alignment from the extended tip design, which improves engagement and prevents component slippage.
  • High durability and strength with a Rockwell B80 hardness, offering reliable performance under heavy-duty mechanical stress.
  • Easy and secure installation using the 3/16" hex drive, allowing for high torque application without head interference.
  • Precision fine threading (UNF) for better adjustment control and increased load distribution in critical assemblies.
  • Broad regulatory compliance including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental standards are met.

Professional Applications & Engineering Value

This 18-8 stainless steel set screw is engineered to address common industrial challenges such as vibration loosening and material fatigue. The Class 3A UNF fine thread and extended tip work in tandem to provide a deeper, more secure bite into components, significantly reducing the risk of unintentional disassembly in high-stress environments. Its headless design with a hex drive allows for flush mounting in tight spaces, making it ideal for precision machinery, automotive systems, and aerospace assemblies where reliability is non-negotiable. The corrosion-resistant properties of stainless steel ensure longevity, even when exposed to moisture or chemicals, providing a dependable fastening solution for demanding engineering applications.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 specifications, with precise Class 3A thread fit and UNF fine threading for optimal performance. It is manufactured from 18-8 stainless steel and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and safe for industrial use worldwide.

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