S-90640A330 3/4"-16 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through nylon insert locking, ensuring secure fastening in high-motion environments
- Reusable locking performance for cost-effective maintenance and assembly adjustments without compromising hold
- High-temperature durability with a 220°F maximum rating, suitable for demanding industrial conditions
- Precise Class 2B thread fit for smooth installation and reliable engagement with mating components
- Corrosion-resistant zinc-plated steel construction extending service life in harsh or outdoor applications
- Standard external hex drive design for easy installation using common tools, reducing assembly time
- Fine UNF thread spacing providing enhanced clamping force and resistance to loosening under load
Professional Applications & Engineering Value
This 3/4"-16 UNF nylon insert locknut delivers critical vibration resistance in machinery, automotive, and heavy equipment applications where dynamic loads and thermal cycling are common. The zinc-plated steel material offers robust strength and corrosion protection, while the nylon insert creates consistent friction to prevent back-off without damaging threads. Its Class 2B thread fit ensures compatibility with standard UNF bolts, reducing installation errors. Ideal for industrial locknut uses in conveyor systems, engine mounts, and structural assemblies, this component solves loosening issues that lead to downtime, maintenance costs, and safety risks—providing a reliable, reusable solution that meets rigorous operational demands.
Specification Summary & Compliance
Manufactured to precise Class 2B thread fit standards with UNF fine threads (3/4"-16) and right-hand direction. Dimensions include 1 1/16" width and 7/8" height with a standard hex profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence. The locking mechanism is rated for temperatures up to 220°F, supporting use in varied thermal conditions.
