Description
Overview:
These UNC steel nuts are general-purpose fasteners for construction, plant, and garden machinery. Made from durable carbon steel with a zinc-plated finish, they offer solid strength with added corrosion resistance for indoor and outdoor use. The standard 3/8 inch thread (approximately 9.53 mm major diameter) follows the UNC coarse thread form for reliable engagement with matching bolts, studs, and set screws. Supplied in a pack of 200, they are suitable for workshop stock, site kits, and fleet maintenance. The bright zinc plating helps resist rust during service and storage. Identified by Manufacturer Part Number (MPN) 903 0553, they provide a consistent fit and repeatable tightening using standard hand or power tools. A practical choice for assemblies, repairs, and routine replacements across many machines and fixtures.
Key Features:
- Steel construction for dependable strength in general fastening tasks
- Zinc-plated (silver) finish provides corrosion resistance in typical UK conditions
- Unified Coarse (UNC) thread for compatibility with 3/8 inch bolts and studs (approx. 9.53 mm)
- Clean, uniform threads for smooth start and consistent tightening
- Pack of 200 supports bulk use on site and in maintenance stores
- Suits assembly with common spanners or socket tools for quick fitting
- Reliable clamp when used with the correct mating thread and torque practices
- MPN 903 0553 for easy identification and reordering
- Versatile for construction fixings, machinery assemblies, and equipment repairs
- Also available in stainless steel versions where higher corrosion resistance is needed
Typical Applications:
Fastening 3/8 inch UNC bolts on frames, guards, brackets, engine accessories, and fixtures. Useful on construction equipment, generators, compressors, mowers, tillers, and workshop jigs. Suitable for repairs, replacements, and new builds where a coarse-thread steel nut with zinc protection is required, including outdoor and site environments.
Also known as:
Hex nut, full nut, 3/8 UNC nut, 3/8 inch coarse thread nut, zinc-plated steel nut, UNC coarse nut, 3/8 threaded nut, bright zinc plated nut (BZP), fastening nut.
Product Specifications
| L&S Part No. | 903 0553 |
|---|---|
| Unit of Sale | Pack of 200 |
| Size | 3/8" |
| Key Features | - 3/8 inch UNC thread for compatibility with matching bolts - Zinc-plated finish for corrosion resistance in UK conditions - Pack of 200 suitable for bulk use - Steel construction ensures dependable strength - Compatible with standard spanners or socket tools |
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