S-91853A038 1"-8 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Vibration-resistant locking mechanism through integrated cotter pin slots prevents loosening in high-stress applications
- Corrosion-resistant 18-8 stainless steel construction ensures long-term durability in harsh industrial environments
- Precision Class 2B thread fit provides consistent engagement and reliable fastening performance
- Standard external hex drive design enables easy installation with common wrench tools
- Pre-drilled 3/16" cotter pin slots accommodate standard safety pins for positive mechanical locking
- Heavy-duty dimensions (1½" width, 1" height) deliver exceptional load-bearing capacity
- Environmental compliance with RoHS 3 and REACH standards ensures workplace safety and regulatory adherence
Professional Applications & Engineering Value
This stainless steel castle locknut with 1"-8 UNC coarse threads addresses critical safety concerns in heavy machinery, automotive, and construction equipment where vibration-induced loosening can lead to catastrophic failures. The 18-8 stainless steel material provides superior corrosion resistance while maintaining high tensile strength, making it ideal for outdoor and marine applications. The external hex drive allows for high-torque installation, and the precisely machined cotter pin slots create a positive mechanical lock that cannot be compromised by temperature fluctuations or continuous vibration. This engineering solution ensures vibration-resistant performance in critical assemblies where fastener reliability is non-negotiable.
Specification Summary & Compliance
This castle locknut features 1"-8 UNC coarse threads with Class 2B thread fit for standard industrial applications. The nut accommodates 3/16" cotter pins with minimum slot dimensions of 0.28" depth and 0.24" width. Manufactured from 18-8 stainless steel with standard external hex drive (1½" width, 1" height). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use in industrial applications worldwide.
