S-92123A121 M8 x 20 mm Set Screws

Set Screws

0678FA00007 Set Screws
0678FA00007 Set Screws

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

Part No.
Part No. 0678FA00007
Equivalent to mcmaster :
92123A121

Basic Information

System of Measurement Metric

Head Parameters

Head Type Headless

Dimensions

Length 20 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 Swivel
Swivel Tip Type Permanent
Tip Diameter 4.5 mm
Tip Material Alloy Steel
Drive Style Hex
Drive Size 4 mm

Material & Strength

Material Alloy Steel
Hardness Rockwell C39

Temperature & Environment

Maximum Swivel Angle
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 holding power with permanent swivel tip that provides maximum contact and prevents component damage during installation
  • Exceptional durability thanks to alloy steel construction with Rockwell C39 hardness rating for long-term performance in demanding environments
  • Precise thread engagement with Class 6g metric coarse threads ensuring reliable fastening and vibration resistance
  • Easy installation and removal with 4mm hex drive that provides excellent torque transmission in confined spaces
  • Enhanced grip stability with 9° maximum swivel angle that maintains consistent pressure on mating surfaces
  • Regulatory compliance with RoHS 3 standards, making it suitable for various industrial applications
  • Optimized for metric systems with M8 x 1.25mm coarse thread design for quick assembly and disassembly

Professional Applications & Engineering Value

This alloy steel set screw with permanent swivel tip addresses critical engineering challenges in industrial fastening applications. The M8 metric thread with 1.25mm coarse pitch and Class 6g tolerance ensures precise fit and reliable performance in vibration-prone environments. The headless design with 4mm hex drive allows for flush mounting in space-constrained assemblies, while the permanent swivel tip distributes pressure evenly to prevent damage to shaft components. Engineered for precision machinery, automotive components, and industrial equipment, this fastener maintains consistent clamping force without marring surfaces, making it ideal for permanent installations requiring repeated adjustment cycles.

Specification Summary & Compliance

This metric set screw features M8 x 1.25mm coarse threads with Class 6g thread fit according to ISO standards, ensuring precise dimensional accuracy. The 20mm length and 4mm hex drive provide consistent installation performance. Manufactured from alloy steel with Rockwell C39 hardness, this fastener meets rigorous industrial requirements. Compliance includes RoHS 3 (2015/863/EU) with exemption 6(a) for lead as an alloying element in steel, making it suitable for regulated applications across multiple industries.

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