S-92845A658 3/8"-16 x 1" ASME B18.3 Set Screws

Set Screws

0658FA00046 Set Screws
0658FA00046 Set Screws

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

Part No.
Part No. 0658FA00046
Equivalent to mcmaster :
92845A658

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 1"

Thread Parameters

Thread Type UNC
Thread Size 3/8"-16
Thread Diameter 0.375"
Thread Spacing Coarse
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
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 Stainless Steel construction for long-lasting performance in harsh environments
  • Exceptional holding power achieved through Class 3A thread fit precision and Rockwell B80 hardness
  • Secure installation and removal with hex drive design providing reliable torque transmission
  • Enhanced component engagement thanks to the extended tip design for deeper penetration
  • Reliable coarse threading with UNC thread type ensuring quick assembly and strong vibration resistance
  • Industry-standard compliance meeting ASME B18.3 specifications for consistent quality and performance
  • Environmentally responsible manufacturing with RoHS 3 and REACH compliance for global regulatory acceptance

Professional Applications & Engineering Value

This high-performance 3/8"-16 UNC set screw delivers critical engineering solutions for industrial applications requiring secure component positioning. The 18-8 Stainless Steel construction provides excellent corrosion resistance, making it ideal for machinery, manufacturing equipment, and outdoor applications where environmental factors threaten fastener integrity. The Class 3A thread fit ensures precise engagement with mating components, eliminating play and maintaining alignment in high-vibration environments. The hex drive design allows for high torque application without slippage, while the extended tip penetrates deeper into materials for superior holding power. These headless set screws are engineered to maintain permanent settings in pulleys, gears, and collars, providing reliable performance in demanding industrial applications where component security is paramount.

Specification Summary & Compliance

This precision fastener features 3/8"-16 UNC coarse threading with Class 3A thread fit for superior dimensional accuracy and engagement. Manufactured to ASME B18.3 standards, the set screw maintains strict quality control throughout production. The extended tip configuration includes precise dimensional tolerances with tip diameter of 0.25" (-0.009" to 0") and tip length of 0.099" (-0.005" to 0"). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.

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