S-91725A100 10-24 Thumb Nuts

Thumb Nuts

1049FA00001 Thumb Nuts
1049FA00001 Thumb Nuts

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

Part No.
Part No. 1049FA00001
Equivalent to mcmaster :
91725A100

Basic Information

System of Measurement Inch
Nut Type Thumb

Dimension Parameters

Height 1/4"

Thread Parameters

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

Head Parameters

Thumb Nut Head Shape Round
Thumb Nut Profile Low
Head Diameter 3/4"
Head Texture Knurled

Material & Strength Parameters

Material 18-8 Stainless Steel

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (07/08/2021, 219 SVHC) Compliant

Geometric Parameters

Number of Holes 4
Hole Diameter 3/32"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Enhanced grip and torque application with knurled round head design for secure manual tightening without tools
  • Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
  • Space-saving low profile design (1/4" height) for applications with limited clearance
  • Reliable thread engagement with Class 2B thread fit ensuring consistent performance in assembly operations
  • Quick installation and adjustment with right-hand UNC coarse threading for efficient hand-tightening
  • Versatile mounting options featuring four 3/32" holes for secondary securement or alignment
  • Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

This low profile thumb nut delivers exceptional engineering value in applications requiring frequent adjustments or tool-less maintenance. The 18-8 stainless steel construction provides excellent corrosion resistance, making it suitable for outdoor equipment, food processing machinery, and marine applications where moisture exposure is common. The knurled round head with 3/4" diameter offers superior finger grip for maximum torque application, while the UNC coarse thread with Class 2B thread fit ensures reliable engagement and disengagement without cross-threading issues. The four-hole design allows for additional securement methods, providing engineers with flexible installation options for industrial assemblies, electronic enclosures, and mechanical adjustments where quick access is paramount.

Specification Summary & Compliance

This thumb nut features precision 10-24 UNC coarse threads with Class 2B thread fit for consistent performance. The inch system measurement includes a 3/4" head diameter and 1/4" height for low-profile applications. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring environmental responsibility and global market acceptance. The right-hand thread direction and coarse thread spacing provide efficient manual operation in industrial fastening scenarios.

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