S-92845A712 2-56 x 3/16" ASME B18.3 Set Screws

Set Screws

0658FA00050 Set Screws
0658FA00050 Set Screws

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

Part No.
Part No. 0658FA00050
Equivalent to mcmaster :
92845A712

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 3/16"

Thread Parameters

Thread Type UNC
Thread Size 2-56
Thread Diameter 0.086"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Extended
Tip Length 0.024"
Tip Length Tolerance -0.005" to 0"
Tip Diameter 0.057"
Tip Diameter Tolerance -0.004" to 0"
Drive Style Hex
Drive Size 0.035"

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
  • Precise Class 3A thread fit ensures secure, vibration-resistant fastening in critical applications
  • Hex drive design provides maximum torque transmission and prevents tool slippage during installation
  • Extended tip configuration delivers enhanced gripping power for permanent component positioning
  • Rockwell B80 hardness rating maintains structural integrity under repeated tightening cycles
  • Coarse UNC threading enables quick installation and superior holding strength in various materials
  • Headless construction allows for flush mounting in space-constrained assemblies

Professional Applications & Engineering Value

This 2-56 UNC set screw delivers exceptional engineering value through its 18-8 stainless steel composition and precision hex drive design. The Class 3A thread fit provides superior engagement in components requiring exact alignment, while the extended tip creates positive locking action that resists loosening from vibration. These headless set screws are particularly valuable in machinery, automotive, and electronics applications where space optimization and corrosion resistance are critical. The coarse thread spacing ensures rapid installation in production environments, and the Rockwell B80 hardness maintains thread integrity through multiple installation cycles, reducing replacement costs and downtime in industrial maintenance scenarios.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with precision Class 3A thread fit tolerances. The 2-56 UNC coarse thread configuration ensures reliable performance in various industrial applications. This set screw maintains full compliance with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations, making it suitable for global manufacturing requirements. The extended tip features controlled dimensional tolerances (-0.005" to 0" length, -0.004" to 0" diameter) to ensure consistent performance across production batches.

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