S-92845A671 3/8"-24 x 3/8" ASME B18.3 Set Screws

Set Screws

0658FA00047 Set Screws
0658FA00047 Set Screws

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

Part No.
Part No. 0658FA00047
Equivalent to mcmaster :
92845A671

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 3/8"

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, ideal for harsh environments and reducing replacement frequency.
  • Precise and secure fastening ensured by Class 3A thread fit, minimizing the risk of loosening under vibration.
  • High torque transmission via the 3/16" hex drive, allowing for reliable installation and removal without stripping.
  • Enhanced holding power from the extended tip design, which provides deeper penetration and a more positive lock on the mating part.
  • Excellent durability and strength with a Rockwell B80 hardness, offering reliable performance under mechanical stress.
  • Broad industrial compliance meeting ASME B18.3 standards, ensuring consistent quality and interchangeability.
  • Environmentally safe usage as it is RoHS 3 and REACH compliant, supporting responsible manufacturing and supply chain requirements.

Professional Applications & Engineering Value

This 3/8"-24 UNF Class 3A set screw is engineered to address common industrial challenges such as component slippage and corrosion-induced failure. Crafted from 18-8 Stainless Steel, it offers exceptional resistance to rust and oxidation, making it suitable for applications in machinery, automotive assemblies, and outdoor equipment where exposure to moisture is a concern. The fine thread and extended tip design ensure a tight, secure fit in pre-tapped holes, reducing maintenance needs and improving overall system reliability. Its hex headless and right-hand thread configuration allow for easy installation in confined spaces, providing engineers with a dependable solution for precise axial clamping and positioning in demanding environments.

Specification Summary & Compliance

This set screw features a 3/8"-24 UNF fine thread with a Class 3A thread fit for high precision and minimal clearance. Key dimensions include a thread diameter of 0.375", length of 3/8", and an extended tip with a diameter of 0.25" and controlled tolerances. It is manufactured in accordance with ASME B18.3 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.

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