S-96125A408 8-32 Shoulder Screws

Shoulder Screws

0551FA00014 Shoulder Screws
0551FA00014 Shoulder Screws

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

Part No.
Part No. 0551FA00014
Equivalent to mcmaster :
96125A408

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"
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

  • Superior corrosion resistance from nickel alloy construction, ideal for harsh industrial environments and extending service life.
  • Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, ensuring reliability in high-stress applications.
  • Precise component alignment enabled by the Class 3A thread fit and standard shoulder fit, reducing assembly errors and improving product quality.
  • Enhanced grip and reduced slippage due to the knurled socket head, allowing for secure tool engagement during installation and maintenance.
  • Robust durability with Rockwell B60 hardness, providing excellent wear resistance and maintaining integrity under repeated loads.
  • Wide compatibility with 8-32 UNC coarse threads and standard socket head profile, facilitating easy integration into existing designs and tooling.
  • Compliance with strict environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated markets and sustainable operations.

Professional Applications & Engineering Value

This nickel alloy shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure in high-stress environments. Its 8-32 UNC coarse thread and Class 3A fit provide precise, secure fastening that minimizes vibration-induced loosening, while the 3/16" shoulder diameter and 1" shoulder length offer stable positioning for components like bearings, gears, and pulleys. The knurled socket head with a 3/32" hex drive ensures easy installation even in confined spaces, reducing assembly time. Made from high-strength nickel alloy, it resists oxidation and chemical exposure, making it ideal for industrial applications in machinery, automotive, and aerospace sectors where reliability and longevity are critical.

Specification Summary & Compliance

This shoulder screw adheres to precise dimensional tolerances, including a Class 3A thread fit for high accuracy, shoulder diameter tolerance of -0.004" to -0.002", and shoulder length tolerance of -0.005" to 0.005". It conforms to UNC thread standards and is fully compliant with RoHS 3 (2015/863/EU) with exemption 6(c) and REACH (EC 1907/2006) as of the specified date, ensuring environmental safety and regulatory adherence for industrial use.

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