S-90202A255 3/4"-16 x 2" ASTM A582 Coupling Nuts

Coupling Nuts

0991FA00056 Coupling Nuts
0991FA00056 Coupling Nuts

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

Part No.
Part No. 0991FA00056
Equivalent to mcmaster :
90202A255

Basic Information

System of Measurement Inch
Nut Type Coupling
Specifications Met ASTM A582

Dimension Parameters

Length 2"
OD 63/64"

Thread Parameters

Thread Type UNF
Thread Size 3/4"-16
Threading Fully Threaded
Thread Direction Right Hand
Thread Spacing Fine
Thread Fit Class 2B

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 from 18-8 stainless steel construction, ideal for harsh industrial environments
  • Precise thread engagement with Class 2B thread fit ensuring reliable connections in demanding applications
  • Full-length threading provides maximum grip and load distribution across the entire 2" length
  • Fine thread spacing (UNF) delivers enhanced vibration resistance and superior clamping force
  • Heavy-duty performance meeting ASTM A582 specifications for high-strength applications
  • Environmental compliance with RoHS 3 and REACH regulations for safe, sustainable operations
  • Standard coupling profile ensures compatibility with existing industrial fastener systems

Professional Applications & Engineering Value

This 3/4"-16 UNF coupling nut delivers exceptional engineering value in applications requiring extended thread engagement and corrosion resistance. The 18-8 stainless steel construction provides excellent protection against rust and chemical exposure, making it ideal for marine, chemical processing, and outdoor industrial equipment. The fully threaded design with Class 2B thread fit ensures precise alignment and maximum tensile strength when joining long threaded rods or studs. The fine thread spacing offers superior resistance to vibration loosening in machinery and structural applications. Manufactured to ASTM A582 standards, this 2" length coupling nut maintains dimensional accuracy and mechanical properties for critical connections in construction, manufacturing, and heavy equipment maintenance.

Specification Summary & Compliance

This coupling nut features 3/4"-16 UNF right-hand threads with Class 2B thread fit for precise dimensional tolerance. The 2" length and 63/64" OD maintain standard inch system measurements. Manufacturing complies with ASTM A582 specifications for material and mechanical properties. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant with current SVHC requirements, ensuring environmental responsibility and regulatory adherence for industrial applications.

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