S-90715A165 1/2"-13 Locknuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
• Reliable vibration resistance through nylon insert locking that maintains secure fastening under dynamic loads
• High-temperature performance with nylon insert rated up to 220°F (104°C) for demanding industrial applications
• Easy installation and removal with standard external hex drive design for standard wrench compatibility
• Precise thread engagement with UNC 1/2"-13 coarse threads and Class 2B fit for consistent performance
• Durable locking mechanism that provides reusable security without damaging mating threads
• Compliance assurance with RoHS 3 and REACH regulations for environmental and safety standards

Professional Applications & Engineering Value

This 316 stainless steel nylon insert locknut delivers exceptional performance in demanding applications where vibration resistance and corrosion protection are critical. The UNC coarse thread design ensures quick installation and reliable holding power in machinery, structural assemblies, and equipment subjected to constant movement or thermal cycling. Engineered with a nylon insert locking mechanism, it maintains clamp force without galling or seizing, protecting expensive components from thread damage. The external hex drive provides familiar tool engagement for maintenance crews, while the high-temperature capability (up to 220°F) makes it suitable for engine compartments, industrial processors, and outdoor equipment exposed to environmental extremes. This combination of materials and design addresses common failure points in industrial fastening systems.

Specification Summary & Compliance

This locknut features UNC 1/2"-13 coarse threads with Class 2B thread fit for standard industrial applications. The standard hex profile measures 3/4" across flats with a height of 19/32". Manufactured from 316 stainless steel with right-hand thread direction and nylon insert locking technology. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence for industrial procurement requirements.