S-92845A753 5/16"-24 x 3/8" ASME B18.3 Set Screws

Set Screws

0658FA00087 Set Screws
0658FA00087 Set Screws

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

Part No.
Part No. 0658FA00087
Equivalent to mcmaster :
92845A753

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 3/8"

Thread Parameters

Thread Type UNF
Thread Size 5/16"-24
Thread Diameter 0.313"
Thread Spacing Fine
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Extended
Tip Length 0.082"
Tip Length Tolerance -0.005" to 0"
Tip Diameter 0.203"
Tip Diameter Tolerance -0.008" to 0"
Drive Style Hex
Drive Size 5/32"

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, ensuring long-term reliability in harsh environments
  • Precise thread engagement through Class 3A thread fit and UNF fine threads, providing vibration-resistant secure fastening
  • Enhanced torque transmission with 5/32" hex drive design, preventing tool slippage during installation
  • Optimized tip contact with extended tip configuration, distributing clamping force evenly across components
  • Exceptional mechanical strength with Rockwell B80 hardness, maintaining structural integrity under heavy loads
  • Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations (RoHS 3, REACH)
  • Space-saving headless design allowing flush mounting in confined assembly spaces

Professional Applications & Engineering Value

This 5/16"-24 UNF Class 3A set screw delivers critical engineering solutions for precision assemblies requiring secure component positioning. The 18-8 Stainless Steel composition provides excellent corrosion resistance in manufacturing environments exposed to moisture, chemicals, or outdoor elements. The extended tip design ensures maximum surface contact, preventing component marring while maintaining consistent clamping pressure in rotating assemblies, machinery components, and precision instruments. With fine thread spacing and Class 3A thread fit, this fastener eliminates backlash and maintains positional accuracy in high-vibration applications. The hex headless configuration enables installation in space-constrained applications where protruding fastener heads would interfere with adjacent components or moving parts.

Specification Summary & Compliance

This set screw maintains Class 3A thread tolerance with 5/16"-24 UNF fine threads and right-hand thread direction. Manufacturing conforms to ASME B18.3 specifications with dimensional precision including 3/8" length, 5/32" hex drive, and extended tip configuration (0.082" length, 0.203" diameter). The component demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications.

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