S-94530A115 1/2"-13 Locknuts

Locknuts

1157FA00002 Locknuts
1157FA00002 Locknuts

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

Part No.
Part No. 1157FA00002
Equivalent to mcmaster :
94530A115

Basic Information

System of Measurement Inch
Nut Type Locknut, Hex

Dimension Parameters

Width 7/8"
Height 17/32"

Thread Parameters

Thread Type UNC
Thread Size 1/2"-13
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Class 2B

Head Parameters

Drive Style External Hex
Hex Nut Profile Extra-Wide Thin

Material & Strength Parameters

Material 316 Stainless Steel

Temperature & Environment Parameters

Insert Maximum Temperature 250°F

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) Compliant
Locking Type Nylon Insert
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 nylon insert locking technology that maintains secure fastening under dynamic loads
  • Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments
  • Enhanced installation efficiency with extra-wide thin hex profile providing better tool engagement and torque application
  • Reliable high-temperature performance with nylon insert rated for continuous service up to 250°F (121°C)
  • Precise thread compatibility with Class 2B thread fit ensuring smooth assembly with standard UNC coarse threaded components
  • Optimized weight-to-strength ratio through thin profile design without compromising locking performance
  • Full regulatory compliance meeting RoHS 3 and REACH environmental standards for global industrial applications

Professional Applications & Engineering Value

This 316 stainless steel nylon insert locknut delivers critical vibration resistance in demanding applications where loosening under dynamic loads poses significant safety and performance risks. The extra-wide thin hex profile enables superior torque transmission while maintaining a low-profile design ideal for space-constrained assemblies. Engineered with UNC coarse threads and Class 2B thread fit, this locknut ensures reliable engagement with standard industrial fasteners while the nylon insert locking mechanism provides consistent clamping force without damaging mating threads. Particularly valuable in machinery, transportation equipment, and marine applications, this external hex locknut combines the corrosion resistance of 316 stainless steel with temperature-stable locking performance up to 250°F, making it an optimal choice for critical joints subject to thermal cycling and environmental exposure.

Specification Summary & Compliance

This locknut features 1/2"-13 UNC coarse threads with Class 2B thread fit for precise dimensional accuracy and compatibility. The manufacturing conforms to standard industrial specifications for external hex drive locknuts with dimensions of 7/8" width and 17/32" height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and unrestricted use in global industrial markets. The right-hand thread direction and nylon insert locking system meet industry standards for vibration-resistant fastening solutions.

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