S-92533A104 10-24 Thumb Nuts

Thumb Nuts

1040FA00004 Thumb Nuts
1040FA00004 Thumb Nuts

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

Part No.
Part No. 1040FA00004
Equivalent to mcmaster :
92533A104

Basic Information

System of Measurement Inch
Nut Type Thumb

Dimension Parameters

Height 7/16"

Thread Parameters

Thread Type UNC
Thread Size 10-24
Threading Fully Threaded
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Class 2B

Head Parameters

Thumb Nut Head Shape Round
Thumb Nut Profile Standard
Head Diameter 1/2"
Head Texture Knurled

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

Geometric Parameters

Collar Diameter 3/8"
Collar Height 1/4"
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance in harsh environments due to premium 316 stainless steel construction, ideal for marine and chemical processing applications.
  • Effortless hand-tightening and adjustment without tools, thanks to the standard round profile and deeply knurled head texture for a secure, non-slip grip.
  • Reliable and fast assembly with a 10-24 UNC coarse thread and Class 2B fit, ensuring smooth engagement and consistent performance in inch-system applications.
  • Enhanced mechanical stability from the 3/8" collar diameter and 1/4" collar height, providing a larger bearing surface for improved load distribution.
  • Full-threaded design for maximum thread engagement and holding power along the entire 7/16" height of the nut.
  • Compliance with stringent environmental regulations, being fully REACH and RoHS 3 compliant for use in regulated industries and global markets.
  • Right-hand threading for standard, intuitive installation and removal in common assembly processes.

Professional Applications & Engineering Value

This 316 stainless steel thumb nut is engineered to solve critical challenges in demanding sectors like marine, chemical processing, and food manufacturing, where exposure to moisture, chlorides, and aggressive chemicals is common. The high corrosion resistance of the material prevents premature failure and reduces maintenance costs. The knurled head and standard round profile allow for quick, tool-free installation and removal, speeding up assembly and disassembly in tight spaces or for frequently adjusted components. Its 10-24 UNC coarse thread with a Class 2B fit ensures reliable fastening in inch-based systems, minimizing cross-threading risks and providing consistent clamping force. This combination of durability, ease of use, and precision makes it an essential component for industrial equipment, access panels, and fluid handling systems where reliability and operator convenience are paramount.

Specification Summary & Compliance

This thumb nut adheres to precise dimensional and performance standards, including a Class 2B thread fit for consistent engagement and a UNC coarse thread (10-24) for robust fastening. Manufacturing and material specifications ensure compatibility with inch-system applications. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, confirming its suitability for use in environments with strict environmental and safety regulations.

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