S-92771A491 8-32 Thumb Nuts

Thumb Nuts

1034FA00005 Thumb Nuts
1034FA00005 Thumb Nuts

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

Part No.
Part No. 1034FA00005
Equivalent to mcmaster :
92771A491

Basic Information

System of Measurement Inch
Nut Type Thumb

Dimension Parameters

Width 7/8"
Height 1/2"

Thread Parameters

Thread Type UNC
Thread Size 8-32
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Class 2B

Head Parameters

Thumb Nut Head Shape Wing
Wing Nut Profile Standard

Material & Strength Parameters

Material Brass

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) Compliant

Geometric Parameters

Base Diameter 13/32"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Easy hand-tightening operation with standard wing profile for quick assembly and disassembly without tools
  • Superior corrosion resistance through high-quality brass construction for extended service life in demanding environments
  • Reliable thread engagement with Class 2B fit UNC coarse threads ensuring secure fastening in vibration-prone applications
  • Optimized dimensional stability with 13/32" base diameter and 7/8" width providing consistent performance across assemblies
  • Enhanced durability through right-hand thread design and robust brass material resisting wear and deformation
  • Compliance assurance with RoHS 3 and REACH regulations for safe use in regulated industries
  • Broad compatibility with 8-32 UNC coarse thread systems commonly used in industrial equipment and machinery

Professional Applications & Engineering Value

This brass thumb nut delivers exceptional value in applications requiring frequent adjustments or tool-less maintenance. The 8-32 UNC coarse thread configuration with Class 2B fit provides reliable engagement while accommodating minor misalignments, making it ideal for electrical enclosures, machinery guards, and instrumentation panels. The standard wing nut profile enables rapid hand-tightening in confined spaces where traditional wrenches cannot reach. Manufactured from corrosion-resistant brass material, this component maintains integrity in humid, chemical, or outdoor environments where steel fasteners would degrade. The right-hand thread direction ensures intuitive installation across various industrial assembly lines, while the substantial 13/32" base diameter and 7/8" width provide comfortable grip surface for secure torque application.

Specification Summary & Compliance

This thumb nut features precision 8-32 UNC coarse threads with Class 2B thread fit per ASME B1.1 standards, ensuring consistent dimensional accuracy across production batches. The inch system measurement provides compatibility with North American equipment specifications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming absence of restricted substances for environmentally responsible sourcing. The component maintains right-hand thread direction with standard wing nut profile dimensions for interchangeability with existing industrial fastening systems.

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