S-94140A103 8-32 Locknuts

Locknuts

1187FA00002 Locknuts
1187FA00002 Locknuts

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

Part No.
Part No. 1187FA00002
Equivalent to mcmaster :
94140A103

Basic Information

System of Measurement Inch
Nut Type Locknut, Hex

Dimension Parameters

Width 11/32"
Height 3/16"

Thread Parameters

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

Head Parameters

Drive Style External Hex
Hex Nut Profile Thin

Material & Strength Parameters

Material 18-8 Stainless Steel

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) Compliant
Locking Type Flex-Top
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 vibration resistance through Flex-Top locking technology that maintains secure fastening under dynamic loads
  • Excellent corrosion protection with 18-8 stainless steel construction for extended service life in harsh environments
  • Space-saving thin profile (3/16" height) ideal for applications with limited clearance while maintaining full locking performance
  • Reliable thread engagement with UNC coarse threads and Class 2B fit ensuring consistent installation and removal
  • Easy installation and removal using standard tools with the external hex drive design
  • Environmental compliance meeting RoHS 3 and REACH standards for industrial safety requirements
  • Right-hand threading compatible with standard industrial fastening systems and procedures

Professional Applications & Engineering Value

This 8-32 thin Flex-Top locknut delivers critical vibration resistance in demanding industrial applications where loosening under dynamic loads poses significant safety and performance risks. The 18-8 stainless steel construction provides exceptional corrosion resistance, making it ideal for harsh environments including marine, chemical processing, and outdoor equipment. The innovative Flex-Top locking technology creates consistent friction along the thread engagement, eliminating the need for additional locking components while maintaining UNC coarse threads for reliable performance in high-vibration machinery, automotive assemblies, and electrical enclosures. The thin profile design addresses space-constrained applications without compromising the locking functionality that prevents costly downtime and maintenance issues.

Specification Summary & Compliance

This locknut features precision UNC coarse threads with Class 2B fit tolerance for consistent thread engagement, measuring 11/32" across flats with a 3/16" height profile. Manufactured to industry standards for external hex drive compatibility, the component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial suitability for global supply chain requirements.

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