S-92012A540 10-32 Shoulder Screws

Shoulder Screws

0578FA00055 Shoulder Screws
0578FA00055 Shoulder Screws

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

Part No.
Part No. 0578FA00055
Equivalent to mcmaster :
92012A540

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

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 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

  • Superior corrosion resistance with black oxide finish, ideal for harsh industrial environments
  • Exceptional strength and durability from alloy steel construction and 140,000 psi tensile strength
  • Precise alignment and reduced wear with Class 2A thread fit and exact shoulder diameter tolerances
  • Easy installation in confined spaces using standard 1/8" hex drive socket head
  • Reliable fine thread engagement with 10-32 UNF right-hand threads for secure fastening
  • Consistent performance maintained through Rockwell C32 hardness rating
  • Compliance with environmental regulations including RoHS 3 and REACH standards

Professional Applications & Engineering Value

This precision shoulder screw delivers critical engineering solutions where exact alignment and rotational precision are paramount. The alloy steel construction with black oxide finish provides exceptional corrosion resistance for demanding applications in machinery, automation systems, and precision equipment. The 10-32 UNF fine thread ensures secure fastening in materials requiring finer pitch engagement, while the precisely machined 1/4" shoulder diameter with tight tolerances eliminates component wobble and reduces bearing surface wear. The socket head design with hex drive enables efficient installation in space-constrained environments, making these shoulder screws indispensable for jigs, fixtures, and rotating assemblies where dimensional stability under load is critical.

Specification Summary & Compliance

Manufactured to exacting standards with Class 2A thread fit per UNF specifications, ensuring consistent engagement and reliable performance. The shoulder features precise dimensional control with diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002" for accurate component alignment. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry requirements for hazardous substance restrictions.

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