S-96125A406 8-32 Shoulder Screws

Shoulder Screws

0551FA00012 Shoulder Screws
0551FA00012 Shoulder Screws

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

Part No.
Part No. 0551FA00012
Equivalent to mcmaster :
96125A406

Basic Information

System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 5/16"
Head Height 5/32"
Head Texture Knurled
Socket Head Profile Standard

Dimensions

Shoulder Diameter 3/16"
Shoulder Diameter Tolerance -0.004" to -0.002"
Shoulder Fit Standard
Shoulder Length 1/2"
Shoulder Length Tolerance -0.005" to 0.005"

Thread Parameters

Thread Type UNC
Thread Size 8-32
Thread Diameter 0.164"
Thread Spacing Coarse
Thread Length 3/16"
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Drive Style Hex
Drive Size 3/32"

Material & Strength

Material Nickel Alloy
Hardness Rockwell B60
Tensile Strength 70000 psi
Minimum Shear Strength 35000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Exceptional corrosion resistance from nickel alloy construction for long-lasting performance in harsh environments
  • Precise component alignment with a 3/16" diameter shoulder that maintains tight tolerances for reduced assembly vibration
  • Superior fastening strength with 70,000 PSI tensile and 35,000 PSI shear ratings for heavy-duty mechanical applications
  • Reliable thread engagement through Class 3A UNC coarse threads ensuring secure, vibration-resistant connections
  • Enhanced installation control with knurled socket head and hex drive providing superior torque application and slip resistance
  • Global compliance readiness meeting RoHS 3 and REACH regulations for international supply chain integration
  • Optimized for automated assembly with consistent shoulder dimensions and standardized socket head profile

Professional Applications & Engineering Value

This nickel alloy shoulder screw delivers critical performance advantages in precision machinery, automotive assemblies, and electronic enclosures where corrosion resistance and dimensional stability are paramount. The 8-32 UNC Class 3A threads provide superior engagement in softer materials while resisting loosening under vibration. Engineers specify this socket head shoulder screw for its ability to maintain precise pivot points and bearing surfaces, with the knurled texture enabling secure handling during automated installation. The combination of high-strength nickel alloy and precision shoulder dimensions solves alignment challenges in rotating assemblies while withstanding extreme operational stresses.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit for superior engagement, maintaining shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". The UNC coarse thread specification ensures compatibility with standard industrial components. Full compliance with RoHS 3 (2015/863/EU) with exemption 6(c) and REACH (EC 1907/2006) regulations, meeting international environmental standards for industrial fasteners.

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