S-92785A550 5/16"-18 x 1" ASME B18.3 Set Screws

Set Screws

0669FA00080 Set Screws
0669FA00080 Set Screws

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

Part No.
Part No. 0669FA00080
Equivalent to mcmaster :
92785A550

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 1"

Thread Parameters

Thread Type UNC
Thread Size 5/16"-18
Thread Diameter 0.313"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Cone
Cone Point Angle 90°
Drive Style Hex
Drive Size 5/32"

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 provided by the 90° cone point design that ensures deep penetration and secure component positioning
  • Precise thread engagement with Class 3A fit UNC coarse threads for reliable fastening and vibration resistance
  • Optimized torque transmission through the hex drive style, allowing for secure installation with standard tools
  • Enhanced material durability with Rockwell B80 hardness that maintains structural integrity under mechanical stress
  • Space-saving headless design ideal for applications where flush mounting is required without protruding components
  • Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global industrial use

Professional Applications & Engineering Value

This 5/16"-18 UNC Class 3A stainless steel set screw delivers critical engineering solutions for industrial applications requiring permanent component positioning. The 18-8 stainless steel material provides excellent corrosion resistance, making it suitable for demanding environments where moisture or chemicals are present. The 90° cone point design creates concentrated pressure points that penetrate deeply into mating surfaces, preventing slippage in high-vibration machinery, pulleys, and gears. With UNC coarse threading and Class 3A thread fit, this fastener ensures precise engagement and reliable performance in automotive assemblies, manufacturing equipment, and precision instruments. The hex headless configuration allows for flush installation in confined spaces while maintaining the structural integrity needed for permanent fastening applications.

Specification Summary & Compliance

This set screw features precise UNC coarse threading with Class 3A thread fit for superior engagement and dimensional accuracy. Manufacturing complies with ASME B18.3 specifications ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations for environmental safety and restricted substance control. Additional specifications include right-hand thread direction, 1" length, and 5/32" hex drive size for standardized installation across industrial applications.

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