S-90202A226 3/8"-16 x 1 1/4" ASTM A582 Coupling Nuts

Coupling Nuts

0991FA00041 Coupling Nuts
0991FA00041 Coupling Nuts

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

Part No.
Part No. 0991FA00041
Equivalent to mcmaster :
90202A226

Basic Information

System of Measurement Inch
Nut Type Coupling
Specifications Met ASTM A582

Dimension Parameters

Length 1 1/4"
OD 31/64"

Thread Parameters

Thread Type UNC
Thread Size 3/8"-16
Threading Fully Threaded
Thread Direction Right Hand
Thread Spacing Coarse
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 ensures long-term reliability in harsh environments
  • Precision thread engagement with Class 2B thread fit guarantees secure, vibration-resistant connections
  • Maximum strength and durability through full threading and compliance with ASTM A582 specifications
  • Easy installation and removal with coarse UNC threads and right-hand thread direction
  • Environmental compliance with RoHS 3 and REACH standards for safe industrial use
  • Versatile coupling capability with standard profile design for connecting threaded rods or components
  • Consistent dimensional accuracy with 3/8"-16 UNC thread size maintained throughout 1¼" length

Professional Applications & Engineering Value

This 3/8"-16 UNC coupling nut delivers exceptional engineering value in demanding industrial applications where corrosion resistance and thread reliability are critical. Manufactured from 18-8 stainless steel and meeting ASTM A582 standards, the fully threaded design provides maximum engagement strength for connecting threaded rods, bolts, or other components in assembly systems. The coarse UNC threads with Class 2B fit ensure quick installation while maintaining precise alignment, reducing assembly time in production environments. Ideal for machinery, structural frameworks, and piping systems where vibration resistance and long-term performance in corrosive conditions are essential requirements.

Specification Summary & Compliance

This coupling nut features 3/8"-16 UNC coarse threads with Class 2B thread fit for precision tolerance, manufactured to ASTM A582 specifications. The standard profile measures 31/64" OD with 1¼" length and right-hand threading. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for regulated industrial applications.

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