S-93285A139 M8 x 30 mm ASME B18.3.6M Set Screws

Set Screws

0645FA00019 Set Screws
0645FA00019 Set Screws

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

Part No.
Part No. 0645FA00019
Equivalent to mcmaster :
93285A139

Basic Information

System of Measurement Metric

Head Parameters

Head Type Headless

Dimensions

Length 30 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 Nylon 6/6 Plastic
Tip Color Green
Tip Temperature Range -50° to 250° F
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
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
  • Secure, vibration-resistant locking thanks to the green nylon 6/6 plastic tip that prevents loosening under dynamic loads
  • High-strength performance with Rockwell B80 hardness for excellent durability and load-bearing capacity
  • Precise thread engagement with Class 6g fit and coarse 1.25mm pitch for quick installation and reliable holding power
  • Space-saving headless design with 4mm hex drive for flush mounting in tight applications
  • Wide temperature compatibility with nylon tip rated from -50° to 250°F for stable performance across various operating conditions
  • Industry-standard compliance meeting ASME B18.3.6M specifications for guaranteed interchangeability and quality

Professional Applications & Engineering Value

This M8 hex headless set screw delivers exceptional engineering value in demanding industrial applications where secure fastening is critical. The combination of 18-8 stainless steel material and Class 6g thread fit ensures precise alignment and maximum clamping force in machinery, automotive components, and precision equipment. The nylon 6/6 plastic tip provides vibration-dampening properties that prevent accidental loosening, making it ideal for rotating assemblies and high-vibration environments. With its coarse thread pitch and headless design, this metric set screw offers quick installation while maintaining a low profile in confined spaces. The 4mm hex drive allows for high-torque installation without stripping, ensuring reliable performance in production lines and maintenance applications.

Specification Summary & Compliance

This set screw features M8 x 1.25mm coarse thread with Class 6g thread fit ensuring precise dimensional accuracy according to metric standards. The 30mm length provides optimal engagement depth for secure fastening. Manufacturing complies with ASME B18.3.6M specifications for dimensional consistency and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety standards for industrial use.

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