S-95446A550 10-32 Shoulder Screws

Shoulder Screws

0579FA00020 Shoulder Screws
0579FA00020 Shoulder Screws

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

Part No.
Part No. 0579FA00020
Equivalent to mcmaster :
95446A550

Basic Information

System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 3/8"
Head Height 3/16"
Head Texture Smooth
Socket Head Profile Standard

Dimensions

Shoulder Diameter 1/4"
Shoulder Diameter Tolerance -0.002" to 0"
Shoulder Fit Precise
Shoulder Length 1"
Shoulder Length Tolerance 0" to 0.003"

Thread Parameters

Thread Type UNF
Thread Size 10-32
Thread Diameter 0.19"
Thread Spacing Fine
Thread Length 1/4"
Thread Direction Right Hand
Thread Fit Class 2A

Tip & Drive Parameters

Drive Style Hex
Drive Size 1/8"

Material & Strength

Material 360 Brass
Hardness Rockwell B55
Tensile Strength 40000 psi
Minimum Shear Strength 22000 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 with 360 Brass material, ideal for harsh environments and reducing maintenance costs.
  • Precise alignment and smooth rotation enabled by the exact 1" shoulder length with tight diameter tolerance for reliable assembly.
  • High strength and durability with 40,000 psi tensile strength and Rockwell B55 hardness, ensuring long-term performance under load.
  • Secure fastening in fine-thread applications thanks to the 10-32 UNF thread and Class 2A fit, minimizing loosening risks.
  • Easy installation and removal with the hex socket drive, allowing efficient tool access in confined spaces.
  • Environmental compliance assurance with full RoHS 3 and REACH adherence, supporting sustainable and safe manufacturing practices.
  • Consistent shear resistance with a minimum 22,000 psi shear strength, providing reliable performance in dynamic applications.

Professional Applications & Engineering Value

This precision shoulder screw is crafted from 360 Brass to address common industrial challenges like corrosion and misalignment in machinery. Its 10-32 UNF fine thread and Class 2A thread fit ensure secure, vibration-resistant connections in applications such as pivots, gears, and electronic assemblies. The 1" shoulder length with precise tolerances allows for accurate component positioning, reducing wear and improving operational efficiency. Ideal for industrial shoulder screws in automotive, aerospace, and precision instruments, it combines the benefits of brass shoulder screw durability with a hex drive for easy maintenance, making it a reliable choice for engineers seeking long-term, compliant solutions.

Specification Summary & Compliance

This shoulder screw adheres to Class 2A thread fit standards for consistent engagement, with shoulder diameter tolerance of -0.002" to 0" and length tolerance of 0" to 0.003" ensuring precise fits. It complies with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006), confirming its suitability for regulated industries. Manufactured to deliver reliable performance with fine thread spacing and a smooth socket head profile.

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