S-90775A033 1/2"-13 Hex Nuts

Hex Nuts

0891FA00003 Hex Nuts
0891FA00003 Hex Nuts

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

Part No.
Part No. 0891FA00003
Equivalent to mcmaster :
90775A033

Basic Information

System of Measurement Inch
Nut Type Hex

Dimension Parameters

Width 3/4"
Height 7/16"

Thread Parameters

Thread Type UNC
Thread Size 1/2"-13
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Class 2B

Head Parameters

Drive Style External Hex
Hex Nut Profile Standard

Material & Strength Parameters

Material Alloy 20 Stainless Steel

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) 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

  • Superior corrosion resistance from Alloy 20 stainless steel for extended service life in harsh chemical environments
  • Reliable coarse thread engagement with UNC 1/2"-13 threads ensuring quick assembly and reduced cross-threading risks
  • Precise Class 2B thread fit delivering consistent clamping force and vibration resistance in industrial applications
  • Durable external hex drive design providing excellent torque transmission and tool compatibility
  • Standard hex nut profile with 3/4" width and 7/16" height for easy installation using common wrench tools
  • Environmental compliance assurance with RoHS 3 (2015/863/EU) certification for regulated industrial sectors
  • Right-hand thread orientation offering compatibility with standard assembly procedures and replacement parts

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these Alloy 20 stainless steel hex nuts deliver exceptional performance where chemical resistance is critical. The UNC coarse thread configuration with Class 2B thread fit ensures rapid installation while maintaining secure fastening in high-vibration applications common in chemical processing, pharmaceutical equipment, and marine installations. The external hex drive design provides superior torque capability during installation, reducing the risk of tool slippage and damaged fasteners. With their standard hex nut profile and inch system compatibility, these nuts integrate seamlessly into existing industrial assemblies requiring reliable, long-term performance in corrosive environments where ordinary stainless steels would fail.

Specification Summary & Compliance

This 1/2"-13 UNC hex nut features precise Class 2B thread fit tolerances per industry standards, with dimensions of 3/4" width and 7/16" height. Manufactured from Alloy 20 stainless steel with right-hand thread direction and coarse thread spacing. Compliant with RoHS 3 (2015/863/EU) regulations for restricted substance control, ensuring environmental responsibility in industrial applications.

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