S-90372A122 M8 Socket Nuts

Socket Nuts

1066FA00017 Socket Nuts
1066FA00017 Socket Nuts

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

Part No.
Part No. 1066FA00017
Equivalent to mcmaster :
90372A122

Basic Information

System of Measurement Metric
Nut Type Socket Head

Dimension Parameters

Height 13.2 mm
OD 13 mm

Thread Parameters

Thread Type Metric
Thread Size M8
Threading Partially Threaded
Thread Direction Right Hand
Thread Pitch 1.25 mm
Thread Spacing Coarse
Thread Fit Class 6H
Thread Depth 7.4 mm

Head Parameters

Drive Style Hex

Material & Strength Parameters

Material 18-8 Stainless Steel

Installation & Application Parameters

For Hole Diameter 13.1 mm

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant

Drive & Tool Parameters

Hex Key Size 5/16"
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 extended service life in harsh environments
  • Precise Class 6H thread fit ensures reliable engagement and vibration resistance in demanding applications
  • Coarse M8 x 1.25mm threading provides faster assembly and reduced cross-threading risk compared to fine-pitch alternatives
  • 5/16" hex drive design delivers secure tool engagement and high torque transmission without slippage
  • Partial threading configuration offers optimal grip strength while minimizing material usage and weight
  • Full regulatory compliance with REACH and RoHS 3 standards for safe use across international markets
  • 13mm OD with 13.2mm height provides compact dimensions for space-constrained assembly applications

Professional Applications & Engineering Value

This M8 socket head nut delivers exceptional engineering value through its 18-8 stainless steel composition and precision Class 6H thread fit. The corrosion-resistant properties make it ideal for machinery, automotive, and outdoor equipment exposed to moisture and chemicals. The coarse metric thread with 1.25mm pitch ensures rapid installation in production environments while maintaining secure fastening. The hex drive socket design allows for high-torque applications where flush mounting is required, preventing tool slippage that can damage components. With partial threading optimizing the grip length, this nut provides reliable clamping force while reducing material costs, making it a cost-effective solution for industrial assembly lines and maintenance operations requiring repeated disassembly.

Specification Summary & Compliance

This socket nut features M8 x 1.25mm coarse metric threading with Class 6H thread fit tolerance for precision engagement. The nut measures 13mm in outer diameter with 13.2mm height and 7.4mm thread depth, designed for 13.1mm hole diameter applications. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring safe use in regulated industries. The right-hand threaded, partially threaded configuration follows standard metric fastener specifications for consistent performance across industrial applications.

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