S-90418A668 M8 x 10 mm ASME B18.3.6M Set Screws

Set Screws

0651FA00020 Set Screws
0651FA00020 Set Screws

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

Part No.
Part No. 0651FA00020
Equivalent to mcmaster :
90418A668

Basic Information

System of Measurement Metric

Head Parameters

Head Type Headless

Dimensions

Length 10 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 Soft
Tip Length 2.4 mm
Tip Diameter 4.8 mm
Tip Material Brass
Drive Style Hex
Drive Size 4 mm

Material & Strength

Material 18-8 Stainless Steel
Hardness Rockwell B80

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.3.6M
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 18-8 stainless steel construction for long-lasting performance in harsh environments
  • Enhanced torque transmission through the 4mm hex drive design, preventing tool slippage during installation
  • Reliable surface protection with integrated brass tip that prevents galling and damage to mating components
  • Consistent thread engagement with Class 6g coarse threads ensuring easy assembly and vibration resistance
  • Optimized hardness and durability with Rockwell B80 rating maintaining structural integrity under load
  • Space-saving headless design allowing flush mounting in confined assembly applications
  • Industry-standard compliance meeting ASME B18.3.6M specifications for guaranteed interchangeability

Professional Applications & Engineering Value

This M8 set screw with 1.25mm coarse thread pitch delivers exceptional engineering value in precision assembly applications. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery operating in humid or chemically aggressive environments, while the headless design enables flush mounting in space-constrained applications like motor shafts, gears, and pulleys. The integrated brass tip prevents surface damage to expensive components during clamping, making it ideal for repeated adjustment applications. With its Class 6g thread fit and 4mm hex drive, this fastener ensures reliable torque transmission and vibration resistance in industrial equipment, automotive assemblies, and precision manufacturing systems where dimensional stability and material integrity are critical.

Specification Summary & Compliance

This metric set screw features M8 x 1.25mm coarse threads with Class 6g tolerance for precise fitment, manufactured according to ASME B18.3.6M standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. With dimensions of 10mm length, 4mm hex drive, and 2.4mm brass tip, this fastener maintains consistent quality and performance specifications for professional applications.

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