S-92785A553 5/16"-24 x 3/8" ASME B18.3 Set Screws

Set Screws

0669FA00083 Set Screws
0669FA00083 Set Screws

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

Part No.
Part No. 0669FA00083
Equivalent to mcmaster :
92785A553

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 3/8"

Thread Parameters

Thread Type UNF
Thread Size 5/16"-24
Thread Diameter 0.313"
Thread Spacing Fine
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Cone
Cone Point Angle 118°
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, ideal for harsh industrial environments
  • Maximum holding security from the precision cone point with 118° angle that bites deeply into materials
  • Exceptional thread engagement with Class 3A fit ensuring tighter tolerances and reduced vibration loosening
  • Enhanced durability from Rockwell B80 hardness that resists wear and deformation under heavy loads
  • Flush installation capability with headless design that prevents interference in compact assemblies
  • Secure torque transmission via the 5/32" hex drive that prevents tool slippage during installation
  • Reliable fine thread performance with 5/16"-24 UNF configuration for improved adjustment precision

Professional Applications & Engineering Value

These 18-8 stainless steel set screws deliver critical engineering solutions where vibration resistance and corrosion protection are paramount. The hex headless design with cone point configuration provides maximum gripping force in precision assemblies, preventing component shift in machinery, automotive systems, and industrial equipment. The Class 3A thread fit ensures exceptional dimensional accuracy for applications requiring minimal backlash, while the fine UNF threads offer superior clamping force distribution. Engineered to withstand demanding conditions, these set screws maintain integrity in high-stress environments where reliability cannot be compromised.

Specification Summary & Compliance

This 5/16"-24 UNF set screw features Class 3A thread fit for precision applications, manufactured to ASME B18.3 specifications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. With a total length of 3/8" and 0.313" thread diameter, these fasteners deliver consistent performance meeting industrial standards for dimensional accuracy and material quality.

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