S-93425A225 7/16"-20 Hex Nuts

Hex Nuts

0878FA00023 Hex Nuts
0878FA00023 Hex Nuts

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

Part No.
Part No. 0878FA00023
Equivalent to mcmaster :
93425A225

Basic Information

System of Measurement Inch
Nut Type Hex

Dimension Parameters

Width 11/16"
Height 3/8"

Thread Parameters

Thread Type UNF
Thread Size 7/16"-20
Thread Direction Left Hand
Thread Spacing Fine
Thread Fit Class 2B

Head Parameters

Drive Style External Hex
Hex Nut Profile Standard

Material & Strength Parameters

Material Zinc-Plated Steel
Fastener Strength Grade/Class Grade 2

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) 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

  • Left-hand threading provides secure fastening in applications where standard right-hand threads may loosen due to rotational forces
  • Fine thread spacing (20 TPI) offers superior vibration resistance and precise adjustment capabilities
  • Zinc-plated steel construction delivers excellent corrosion protection for extended service life in demanding environments
  • Grade 2 strength classification ensures reliable performance for general industrial applications
  • Class 2B thread fit guarantees consistent engagement and smooth assembly with mating components
  • Standard hex profile with 11/16" width enables easy installation using common wrench tools
  • Environmental compliance meets RoHS 3 and REACH standards for safe use across global markets

Professional Applications & Engineering Value

This left-hand thread hex nut addresses critical engineering challenges in applications where counter-rotational forces are present. The 7/16"-20 UNF fine thread configuration provides enhanced resistance to vibration-induced loosening, making it ideal for rotating machinery, conveyor systems, and automotive components. The zinc-plated steel material offers superior corrosion protection while maintaining the Grade 2 strength required for industrial fastening applications. The external hex drive design ensures compatibility with standard tools, streamlining installation and maintenance procedures. This specialized fastener solves the unique challenges of applications requiring reverse-threading solutions while delivering consistent performance and durability.

Specification Summary & Compliance

Manufactured to UNF thread standards with Class 2B thread fit for precise dimensional accuracy. The fastener features a standard inch system measurement with dimensions of 11/16" width and 3/8" height. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across industrial sectors. The Grade 2 strength classification confirms reliable performance for general industrial applications requiring left-hand threading solutions.

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