S-98001A130 1/4"-20 Weld Nuts

Weld Nuts

1091FA00005 Weld Nuts
1091FA00005 Weld Nuts

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

Part No.
Part No. 1091FA00005
Equivalent to mcmaster :
98001A130

Basic Information

System of Measurement Inch
Nut Type Weld, Flange

Thread Parameters

Thread Type UNC
Thread Size 1/4"-20
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Class 2B

Head Parameters

Weld Nut Shape Rectangular

Material & Strength Parameters

Material Steel

Installation & Application Parameters

For Hole Diameter 19/64"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2022, 223 SVHC) Compliant

Geometric Parameters

Base Thickness 3/32"
Base Length 1"
Base Width 7/16"
Barrel Diameter 0.281"
Barrel Height 1/32"
Barrel Profile Low
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Enhanced welding stability with rectangular base design providing superior surface contact and preventing rotation during installation
  • Space-saving low profile barrel (1/32" height) enables installation in confined spaces while maintaining structural integrity
  • Reliable coarse thread performance with UNC 1/4"-20 configuration offering excellent engagement and reduced cross-threading risk
  • Precision Class 2B thread fit ensures smooth assembly and consistent torque performance in high-volume production environments
  • Durable steel construction delivers exceptional strength and corrosion resistance for demanding industrial applications
  • Optimized barrel diameter (0.281") provides secure fit in standard 19/64" mounting holes for precise alignment
  • Regulatory compliance assurance with REACH and RoHS 3 certification meeting international environmental and safety standards

Professional Applications & Engineering Value

This rectangular low profile weld nut addresses critical challenges in industrial assembly where space constraints and welding reliability are paramount. The steel construction combined with UNC coarse threading provides exceptional vibration resistance in automotive frames, machinery enclosures, and structural fabrications. The rectangular base design prevents spin-out during welding operations, while the low barrel profile maintains material integrity in thin-gauge applications. Engineering teams benefit from the Class 2B thread fit which ensures consistent performance in automated assembly systems, reducing production downtime and improving joint reliability across manufacturing, construction, and heavy equipment sectors.

Specification Summary & Compliance

Manufactured to precise inch system measurements with Class 2B thread fit tolerance ensuring compatibility with standard 1/4"-20 UNC fasteners. The nut features right-hand thread direction with coarse spacing optimized for rapid assembly. Compliance includes REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) certifications, meeting international environmental standards for industrial components. Base dimensions of 1" length × 7/16" width × 3/32" thickness provide optimal welding surface area for secure permanent installations.

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