S-95289A117 8-32 x 5/16" ASME B18.3 Set Screws

Set Screws

0664FA00019 Set Screws
0664FA00019 Set Screws

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

Part No.
Part No. 0664FA00019
Equivalent to mcmaster :
95289A117

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 0.086"
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 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.
  • Maximum holding power achieved through Class 3A thread fit for precise, secure fastening without play.
  • Enhanced grip and anti-loosening from the extended tip design, providing deeper penetration into mating materials.
  • High durability and strength with Rockwell B80 hardness, resisting deformation under high torque applications.
  • Easy installation and removal using a standard 5/64" hex drive, compatible with common industrial tools.
  • Reliable performance in coarse thread applications with UNC threading, ideal for quick assembly and disassembly.
  • Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability.

Professional Applications & Engineering Value

This 8-32 UNC set screw is engineered to address critical industrial challenges, such as component slippage and corrosion-induced failure. Crafted from 18-8 Stainless Steel, it offers excellent resistance to rust and chemicals, making it ideal for machinery, automotive, and outdoor equipment where environmental exposure is a concern. The extended tip design increases surface contact, enhancing grip in soft or hard materials and preventing loosening under vibration. With a coarse thread and Class 3A fit, it ensures rapid, precise installation in right-hand thread applications, reducing assembly time and maintenance costs. This headless set screw is perfect for confined spaces, providing a flush finish while maintaining high Rockwell B80 hardness for enduring performance in demanding settings.

Specification Summary & Compliance

This set screw adheres to precise dimensional standards, including Class 3A thread fit for tight tolerances and UNC thread type with coarse spacing. It meets ASME B18.3 specifications for consistent manufacturing quality. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it ensures environmental safety and material sustainability in industrial use.

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