S-92635A324 M8 x 50 mm DIN 479 Set Screws

Set Screws

0661FA00010 Set Screws
0661FA00010 Set Screws

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

Part No.
Part No. 0661FA00010
Equivalent to mcmaster :
92635A324

Basic Information

System of Measurement Metric

Head Parameters

Head Type Square
Head Width 8 mm
Head Height 8 mm

Dimensions

Length 50 mm

Thread Parameters

Thread Type Metric
Thread Size M8
Thread Pitch 1.25 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g

Tip & Drive Parameters

Tip Type Extended
Tip Length 2.25 mm
Tip Length Tolerance -0.25mm to 0
Tip Diameter 5.5 mm
Tip Diameter Tolerance -0.18mm to 0
Drive Style External Square

Material & Strength

Material Alloy Steel
Hardness Rockwell C22

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met DIN 479
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 holding power from the extended tip design, ensuring secure and permanent fastening in demanding applications.
  • Exceptional durability and wear resistance provided by the alloy steel construction and Rockwell C22 hardness rating.
  • Reliable and precise fit with a Class 6g thread tolerance, guaranteeing consistent performance in metric assemblies.
  • Efficient installation and high torque capability enabled by the external square drive and square head, preventing tool slippage.
  • Optimized for quick assembly thanks to the coarse 1.25mm thread pitch, which reduces installation time in industrial settings.
  • Broad compatibility with standard metric components and tooling, conforming to the widely recognized DIN 479 specification.
  • Safe for use in regulated environments as it is fully compliant with RoHS 3 and REACH environmental directives.

Professional Applications & Engineering Value

This M8 square head set screw is engineered to solve critical fastening challenges in heavy-duty machinery, automotive systems, and permanent mechanical joints. The alloy steel material, combined with a Rockwell C22 hardness, provides excellent resistance to vibrational loosening and shear forces, a common failure point in dynamic industrial environments. Its extended tip and coarse metric thread (M8 x 1.25mm) ensure deep engagement and a strong bite into the mating part, making it ideal for securing gears, pulleys, and collars on shafts. By adhering to the DIN 479 standard, this screw delivers predictable performance and interchangeability, reducing assembly errors and maintenance downtime for engineers and procurement specialists.

Specification Summary & Compliance

This set screw features a metric M8 thread with a 1.25mm coarse pitch and a Class 6g thread fit for standard tolerance. The tip is extended with a diameter of 5.5mm and a length of 2.25mm, manufactured to precise dimensional tolerances. It is produced in accordance with the DIN 479 manufacturing specification and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.

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