S-91725A130 3/8"-16 Thumb Nuts

Thumb Nuts

1049FA00004 Thumb Nuts
1049FA00004 Thumb Nuts

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

Part No.
Part No. 1049FA00004
Equivalent to mcmaster :
91725A130

Basic Information

System of Measurement Inch
Nut Type Thumb

Dimension Parameters

Height 3/8"

Thread Parameters

Thread Type UNC
Thread Size 3/8"-16
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Class 2B

Head Parameters

Thumb Nut Head Shape Round
Thumb Nut Profile Low
Head Diameter 1"
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 3/16"
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Enhanced grip and torque application through knurled head texture for reliable hand-tightening without tools
  • Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
  • Space-saving low profile design allows installation in tight spaces while maintaining easy manual operation
  • Precise thread engagement with Class 2B thread fit ensuring smooth assembly and consistent performance
  • Quick installation and adjustment with coarse UNC threads and right-hand direction for standard applications
  • Secure mounting options featuring four 3/16" holes for optional locking or retention mechanisms
  • Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use across industries

Professional Applications & Engineering Value

This low profile knurled thumb nut delivers exceptional value in applications requiring frequent adjustments or tool-free maintenance. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery, electrical enclosures, and outdoor equipment where environmental factors degrade inferior materials. The coarse UNC threads (3/8"-16) enable rapid installation while the Class 2B thread fit maintains precise tolerances for vibration resistance. The combination of knurled texture and generous 1" head diameter ensures positive grip even with gloved hands, reducing installation time and eliminating specialized tools in assembly lines, maintenance operations, and field service applications.

Specification Summary & Compliance

This thumb nut features 3/8"-16 UNC coarse threads with Class 2B thread fit per ASME standards, ensuring dimensional accuracy and reliable performance. The low profile round design measures 1" in head diameter with 3/8" height, incorporating four 3/16" mounting holes. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material restrictions adherence for global industrial applications.

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