S-94640A280 1/2"-20 Weld Nuts

Weld Nuts

1104FA00022 Weld Nuts
1104FA00022 Weld Nuts

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

Part No.
Part No. 1104FA00022
Equivalent to mcmaster :
94640A280

Basic Information

System of Measurement Inch
Nut Type Tube End

Dimension Parameters

Height 1 3/8"

Thread Parameters

Thread Type UNF
Thread Size 1/2"-20
Threading Partially Threaded
Thread Direction Right Hand
Thread Spacing Fine
Thread Fit Class 2B
Thread Length 1 1/4"

Material & Strength Parameters

Material 4130 Alloy Steel

Installation & Application Parameters

For Tube OD 7/8"
For Tube Wall Thickness 0.065"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2022, 223 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 strength and fatigue resistance from 4130 Alloy Steel, ideal for high-stress industrial environments.
  • Precise tube connection with compatibility for 7/8" OD tubing and 0.065" wall thickness, ensuring leak-proof assemblies.
  • Reliable thread engagement with Class 2B fit and 1/4"-20 UNF fine threading, minimizing loosening under vibration.
  • Optimized installation efficiency through partial threading and right-hand direction, speeding up assembly processes.
  • Long-term durability in harsh conditions, backed by robust material properties and consistent performance.
  • Environmental compliance assurance with RoHS 3 and REACH standards, meeting global regulatory requirements.
  • Versatile application fit for various tube systems, reducing the need for multiple nut types.

Professional Applications & Engineering Value

This Tube End Weld Nut is engineered to address critical challenges in tube connection systems, where secure, leak-resistant joints are paramount. Crafted from 4130 Alloy Steel, it offers exceptional tensile strength and corrosion resistance, preventing failures in high-pressure or dynamic settings. The 1/2"-20 UNF fine threading with Class 2B fit ensures tight tolerances and vibration resistance, reducing maintenance needs in industries like automotive, aerospace, and hydraulic systems. Its partially threaded design allows for easier alignment and welding on 7/8" OD tubing, streamlining installation while maintaining structural integrity. By incorporating RoHS 3 and REACH compliance, it supports sustainable manufacturing without compromising on reliability, making it a trusted choice for engineers seeking durable, precision tube fittings.

Specification Summary & Compliance

This nut adheres to Class 2B thread fit standards for precise dimensional accuracy, with 1/2"-20 UNF fine threading and a thread length of 1 1/4". It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. Designed for tubes with 7/8" OD and 0.065" wall thickness, it meets common industrial specifications for reliable performance in weld nut applications.

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