S-92845A145 6-32 x 5/16" ASME B18.3 Set Screws

Set Screws

0658FA00008 Set Screws
0658FA00008 Set Screws

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

Part No.
Part No. 0658FA00008
Equivalent to mcmaster :
92845A145

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 5/16"

Thread Parameters

Thread Type UNC
Thread Size 6-32
Thread Diameter 0.138"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Extended
Tip Length 0.038"
Tip Length Tolerance -0.005" to 0"
Tip Diameter 0.092"
Tip Diameter Tolerance -0.005" to 0"
Drive Style Hex
Drive Size 1/16"

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 long-term reliability
  • Exceptional holding power and vibration resistance achieved through Class 3A thread fit and coarse UNC threads
  • High-strength performance with Rockwell B80 hardness, ensuring durability under load
  • Secure, flush installation with a headless hex drive design, preventing snagging and allowing for a clean finish
  • Enhanced grip and component retention due to the extended tip, which bites firmly into the mating surface
  • Precise and reliable fastening with a 1/16" hex drive, providing excellent torque transmission
  • Broad industry compliance meeting ASME B18.3 standards, RoHS 3, and REACH, ensuring safety and regulatory acceptance

Professional Applications & Engineering Value

This 6-32 UNC Class 3A set screw is engineered to solve critical challenges in industrial assembly, where vibration resistance and secure component positioning are paramount. The 18-8 Stainless Steel material provides excellent corrosion resistance, making it suitable for machinery, automotive, and outdoor equipment exposed to moisture or chemicals. Its headless design with a 1/16" hex drive allows for flush mounting in tight spaces, while the extended tip ensures a firm bite into shafts, gears, or collars, preventing slippage under dynamic loads. The coarse UNC threads and Class 3A fit deliver high precision and strength, reducing the risk of loosening in high-stress applications. This set screw is a reliable choice for engineers seeking durability, compliance, and performance in precision set screws for industrial use.

Specification Summary & Compliance

This set screw adheres to strict dimensional and performance standards, including Class 3A thread fit for precise tolerances and UNC coarse threads (6-32 size). It is manufactured in compliance with ASME B18.3 specifications, ensuring consistency and reliability. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances.

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