S-95030A410 1 3/4"-12 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through cotter pin locking mechanism for reliable performance in high-stress environments
• Enhanced corrosion protection with zinc-plated steel construction extending service life in industrial conditions
• Precise thread engagement with Class 2B thread fit ensuring consistent, secure fastening alignment
• Extra fine thread design providing superior load distribution and resistance to loosening under dynamic loads
• Standard external hex drive enabling easy installation with common industrial tools
• Optimized slot dimensions (0.44" depth, 0.43" width) accommodating standard 3/8" cotter pins for secure locking
• Regulatory compliance assurance meeting REACH and RoHS 3 standards for safe industrial usage

Professional Applications & Engineering Value

This heavy-duty castle locknut with 1 3/4"-12 extra fine thread delivers critical security for demanding mechanical assemblies where vibration-induced loosening poses significant risks. The zinc-plated steel construction provides essential corrosion resistance in industrial environments, while the UN thread standard with Class 2B fit ensures precise mating with corresponding fasteners. The integrated cotter pin slot design enables positive mechanical locking, making it ideal for rotating shaft applications, heavy machinery, and structural connections where failure prevention is paramount. The external hex drive facilitates straightforward installation and removal using standard wrenches, streamlining maintenance procedures in industrial settings.

Specification Summary & Compliance

This locknut features 1 3/4"-12 UN extra fine threads with Class 2B thread fit for precision engagement, manufactured to standard industrial specifications. The product maintains dimensional accuracy with a 2 5/8" width and 1 1/2" height, designed to accommodate 3/8" cotter pins through properly sized slots. Compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) standards ensures environmental safety and regulatory adherence for industrial applications worldwide.