S-94115A239 10-24 x 5/16" ASME B18.3 Set Screws

Set Screws

0646FA00020 Set Screws
0646FA00020 Set Screws

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

Part No.
Part No. 0646FA00020
Equivalent to mcmaster :
94115A239

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 5/16"

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 Soft
Tip Length 0.047"
Tip Diameter 0.094"
Tip Material Nylon 6/6 Plastic
Tip Color Green
Tip Temperature Range -50° to 250° F
Drive Style Hex
Drive Size 3/32"

Material & Strength

Material Black-Oxide Alloy Steel
Hardness Rockwell C28

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

  • Secure, non-marring fastening with durable Nylon 6/6 plastic tip that prevents surface damage and maintains component integrity.
  • Superior corrosion resistance from Black-Oxide Alloy Steel, ensuring long-term reliability in harsh industrial environments.
  • High-strength performance supported by Rockwell C28 hardness, providing excellent load-bearing capacity and resistance to wear.
  • Precise, vibration-resistant locking due to Class 3A UNC coarse threads, offering tight tolerances for secure assemblies.
  • Easy installation and removal with 3/32" hex drive in a headless design, allowing flush mounting in confined spaces.
  • Wide temperature adaptability with nylon tip rated from -50° to 250°F, suitable for diverse operating conditions.
  • Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for safe, eco-friendly use.

Professional Applications & Engineering Value

This 10-24 set screw with a nylon tip is engineered to address common industrial challenges such as component slippage and surface damage in precision assemblies. The Black-Oxide Alloy Steel construction enhances durability and corrosion resistance, ideal for machinery, automotive, and electronics where environmental factors are a concern. Its Class 3A UNC coarse thread ensures a reliable, vibration-resistant fit, reducing maintenance needs in high-stress applications. The headless hex drive design allows for seamless integration in tight spaces, while the nylon 6/6 plastic tip provides a soft-touch grip that prevents marring on sensitive surfaces. Compliant with ASME B18.3 standards, it delivers consistent performance for OEM and MRO needs, ensuring long-term operational efficiency.

Specification Summary & Compliance

This set screw features precise Class 3A thread fit with UNC coarse thread spacing and a diameter of 0.19", ensuring accurate engagement. It adheres to ASME B18.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity for industrial use.

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