S-92012A561 6-32 Shoulder Screws

Shoulder Screws

0578FA00059 Shoulder Screws
0578FA00059 Shoulder Screws

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

Part No.
Part No. 0578FA00059
Equivalent to mcmaster :
92012A561

Basic Information

System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 9/32"
Head Height 1/8"
Head Texture Smooth
Socket Head Profile Standard

Dimensions

Shoulder Diameter 5/32"
Shoulder Diameter Tolerance -0.001" to 0"
Shoulder Fit Precise
Shoulder Length 5/8"
Shoulder Length Tolerance 0" to 0.002"

Thread Parameters

Thread Type UNC
Thread Size 6-32
Thread Diameter 0.138"
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 ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
  • Precise shoulder fit with tight tolerances (0.002") provides accurate alignment and stability in assemblies, minimizing vibration and wear.
  • Black oxide finish on alloy steel offers superior corrosion resistance, extending service life in harsh industrial environments.
  • Class 2A thread fit with UNC coarse threads allows for easy installation and secure fastening, improving assembly efficiency.
  • Socket head with hex drive design enables high-torque application and access in confined spaces, enhancing versatility.
  • Compliance with RoHS 3 and REACH ensures environmental safety and regulatory adherence for global supply chains.
  • Durable alloy steel construction combined with Rockwell C32 hardness delivers long-term durability and resistance to deformation.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial machinery, automation systems, and precision instruments. The alloy steel material and black oxide finish provide excellent resistance to corrosion and wear, making it ideal for applications exposed to moisture, chemicals, or repetitive motion. The UNC Class 2A threads and precise shoulder diameter ensure secure fits in assemblies, reducing misalignment and maintenance downtime. With a 5/8" shoulder length and smooth head texture, it facilitates accurate positioning in pivots, gears, and linkages, supporting efficient production and extended equipment life in sectors like automotive, aerospace, and manufacturing.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It features a shoulder diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002", ensuring precise assembly. Manufactured from alloy steel with a black oxide finish, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting safe and sustainable industrial use.

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