S-92785A569 3/8"-24 x 3/4" ASME B18.3 Set Screws

Set Screws

0669FA00099 Set Screws
0669FA00099 Set Screws

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

Part No.
Part No. 0669FA00099
Equivalent to mcmaster :
92785A569

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 3/4"

Thread Parameters

Thread Type UNF
Thread Size 3/8"-24
Thread Diameter 0.375"
Thread Spacing Fine
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Cone
Cone Point Angle 90°
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, ideal for harsh industrial environments.
  • Exceptional holding power from the 90° cone point design that bites securely into mating surfaces.
  • Precise, reliable thread engagement ensured by the Class 3A thread fit for high-strength, vibration-resistant assemblies.
  • Optimized torque transmission via the 3/16" hex drive, preventing tool slippage and head stripping.
  • Enhanced durability and wear resistance from Rockwell B80 hardness, extending service life under load.
  • Space-saving headless design allows for flush mounting in applications with limited clearance.
  • Fine thread spacing (UNF) provides improved adjustment precision and superior clamping force distribution.

Professional Applications & Engineering Value

Engineered for demanding industrial fastening applications, these 18-8 stainless steel set screws deliver reliable performance in machinery, automotive components, and precision equipment. The headless design with hex drive ensures a low-profile installation, while the 90° cone point concentrates force to prevent shaft slippage and maintain positional accuracy in pulleys, gears, and collars. The Class 3A UNF fine threads offer superior resistance to loosening under vibration, a common challenge in dynamic assemblies. Manufactured from corrosion-resistant stainless steel and hardened to Rockwell B80, these screws withstand repetitive adjustments and harsh operating conditions, reducing maintenance frequency and downtime.

Specification Summary & Compliance

This 3/8"-24 UNF set screw features a precision Class 3A thread fit with fine thread spacing, ensuring tight tolerances and secure fastening. It is manufactured in accordance with ASME B18.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial use without hazardous substances.

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