S-92012A207 8-32 Shoulder Screws

Shoulder Screws

0578FA00008 Shoulder Screws
0578FA00008 Shoulder Screws

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

Part No.
Part No. 0578FA00008
Equivalent to mcmaster :
92012A207

Basic Information

System of Measurement Inch

Head Parameters

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

Dimensions

Shoulder Diameter 3/16"
Shoulder Diameter Tolerance -0.001" to 0"
Shoulder Fit Precise
Shoulder Length 3/4"
Shoulder Length Tolerance 0" to 0.002"

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 2A

Tip & Drive Parameters

Drive Style Hex
Drive Size 3/32"

Material & Strength

Material Alloy Steel
Finish Black Oxide
Hardness Rockwell C32
Tensile Strength 140000 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 tensile strength of 140,000 PSI for reliable performance in heavy-duty and high-stress applications, reducing the risk of fastener failure.
  • Precise shoulder fit with tight tolerances (±0.002") ensures accurate alignment and smooth rotation in assemblies, minimizing wear and improving operational efficiency.
  • Corrosion-resistant black oxide finish extends service life by protecting against rust and environmental degradation in demanding industrial settings.
  • Class 2A thread fit with coarse UNC threading allows for easy assembly and disassembly while maintaining secure fastening, saving time during maintenance.
  • Socket head with hex drive design enables secure, high-torque installation using standard tools, preventing stripping and ensuring consistent clamping force.
  • Durable alloy steel construction with Rockwell C32 hardness offers excellent wear resistance and longevity, supporting repeated use in machinery and equipment.
  • Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global standards for industrial components, facilitating hassle-free procurement.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address common industrial challenges such as misalignment, vibration loosening, and corrosion in mechanical assemblies. The alloy steel material, combined with a Rockwell C32 hardness, provides robust durability for high-load applications like pivots, gears, and rotating shafts. The precise shoulder diameter and length with minimal tolerances ensure accurate positioning, reducing friction and wear in precision equipment. The black oxide finish enhances corrosion resistance, making it ideal for humid or abrasive environments. With its socket head and hex drive, installation is straightforward, minimizing downtime in production lines. This screw is commonly used in automotive, aerospace, and manufacturing sectors where reliable heavy-duty fastening is critical for operational safety and efficiency.

Specification Summary & Compliance

This shoulder screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent engagement and ease of assembly. Dimensions include a 3/16" thread length and 3/4" shoulder length, with tight tolerances (e.g., shoulder diameter tolerance of -0.001" to 0") to ensure precision in engineering applications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from hazardous substances and suitable for global industrial use. Manufactured from high-strength alloy steel, it delivers reliable performance under demanding conditions.

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