S-93282A330 3/8"-16 x 1" ASTM A276 Coupling Nuts

Coupling Nuts

0991FA00073 Coupling Nuts
0991FA00073 Coupling Nuts

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

Part No.
Part No. 0991FA00073
Equivalent to mcmaster :
93282A330

Basic Information

System of Measurement Inch
Nut Type Coupling
Specifications Met ASTM A276

Dimension Parameters

Length 1"
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 316 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 316 Stainless Steel construction, ideal for harsh environments including marine and chemical applications
  • Precise thread engagement with Class 2B thread fit ensuring reliable connections and reduced risk of cross-threading
  • Enhanced durability through full threading and coarse UNC thread pattern, providing maximum strength for extended service life
  • Industry-standard compliance with ASTM A276 specifications, guaranteeing material quality and mechanical performance
  • Environmental regulation adherence with RoHS 3 and REACH compliance, ensuring safe use in regulated industries
  • Versatile connectivity with standard profile and right-hand threading for easy installation in various assembly configurations
  • Optimized dimensional stability with 1" length and 31/64" OD maintaining consistent performance across temperature variations

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 316 Stainless Steel, it effectively solves common challenges in marine equipment, chemical processing plants, and food processing machinery where exposure to moisture and aggressive chemicals would degrade ordinary fasteners. The fully threaded design with coarse UNC threading provides maximum thread engagement surface area, distributing load evenly to prevent stress concentration points that lead to fastener failure. The Class 2B thread fit ensures smooth assembly while maintaining secure connections in vibrating environments, making it particularly valuable for structural frameworks, piping systems, and machinery where disconnection risks must be minimized. This coupling nut's compliance with ASTM A276 standards guarantees consistent material properties batch after batch, giving engineers confidence in their design calculations and maintenance schedules.

Specification Summary & Compliance

This coupling nut maintains Class 2B thread fit tolerances per UNC standards with 3/8"-16 coarse threading and right-hand direction. Manufacturing complies with ASTM A276 specifications for material properties and dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety standards for industrial use worldwide. Critical dimensions include 31/64" OD and 1" length with standard coupling nut profile.

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