S-90202A103 M6 x 20 mm ASTM A582 Coupling Nuts

Coupling Nuts

0991FA00003 Coupling Nuts
0991FA00003 Coupling Nuts

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

Part No.
Part No. 0991FA00003
Equivalent to mcmaster :
90202A103

Basic Information

System of Measurement Metric
Nut Type Coupling
Specifications Met ASTM A582

Dimension Parameters

Length 20 mm
OD 10 mm

Thread Parameters

Thread Type Metric
Thread Size M6
Threading Fully Threaded
Thread Direction Right Hand
Thread Pitch 1 mm
Thread Spacing Coarse
Thread Fit Class 6H

Head Parameters

Coupling Nut Profile Standard

Material & Strength Parameters

Material 18-8 Stainless Steel

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant
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, ideal for harsh or outdoor environments.
  • Precise and reliable connections ensured by Class 6H thread fit, minimizing the risk of loosening or cross-threading.
  • Full threading design allows for maximum engagement and load distribution along the entire 20 mm length.
  • Coarse thread spacing (1 mm pitch) enables quick assembly and disassembly, saving valuable installation time.
  • Compliance with ASTM A582 guarantees material quality and mechanical properties for demanding industrial applications.
  • RoHS 3 and REACH compliant for safe use in regulated industries and environmentally conscious projects.
  • Right-hand threading provides standard, intuitive fastening that integrates seamlessly with existing metric systems.

Professional Applications & Engineering Value

This M6x1 mm coupling nut in 18-8 stainless steel is engineered to address common challenges in mechanical assemblies, such as vibration-induced loosening and corrosion in humid or chemical-exposed settings. Its fully threaded body and Class 6H thread fit ensure a tight, secure joint that maintains integrity under dynamic loads, making it suitable for extending threaded rods, joining hydraulic components, or securing structural frames. The coarse thread spacing and right-hand thread direction simplify maintenance in tight spaces, while the ASTM A582 compliance assures consistent performance in industrial coupling nut applications, from machinery manufacturing to automotive and construction sectors.

Specification Summary & Compliance

This coupling nut features an M6 metric thread with a 1 mm pitch and Class 6H thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. It is manufactured from 18-8 stainless steel in accordance with ASTM A582 specifications, providing reliable strength and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally sensitive and regulated industries.

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