170-Piece Hex Nylon Insert Lock Nut Kit M3 M4 M5 M6 M8 M10 M12
170-Piece Hex Nylon Insert Lock Nut Kit M3 M4 M5 M6 M8 M10 M12
170-Piece Hex Nylon Insert Lock Nut Assortment Kit – M3 to M12
Keep your workshop stocked and your fasteners secure with this comprehensive 170-piece hex nylon insert self-locking nut assortment kit. Covering 7 metric sizes — M3, M4, M5, M6, M8, M10, and M12 — this kit is an essential addition to any toolbox, workshop bench, or parts cabinet. Each nylon insert locknut is engineered to resist loosening caused by vibration and torque, making them ideal for mechanical assemblies, electronics enclosures, furniture, automotive projects, and general DIY tasks.
Why Choose Nylon Insert Locknuts?
Unlike standard hex nuts, nylon insert locknuts feature an integrated nylon collar that grips the bolt thread and prevents unintentional rotation. This provides a secure, reliable hold even under dynamic loads and constant vibration — no additional thread-locking compound required.
Kit Contents – 7 Sizes
- M3 Nylon Insert Locknuts
- M4 Nylon Insert Locknuts
- M5 Nylon Insert Locknuts
- M6 Nylon Insert Locknuts
- M8 Nylon Insert Locknuts
- M10 Nylon Insert Locknuts
- M12 Nylon Insert Locknuts
Total: 170 pieces across all 7 values.
Key Features
- Material: Durable iron construction for dependable strength
- Nylon Insert: Integrated locking collar prevents self-loosening
- Hex Head Design: Standard hex profile for use with common spanners and wrenches
- Metric Sizing: M3 through M12 — covers the most common project requirements
- 170 Pieces: Generous quantity so you're always prepared
- Versatile Use: Suitable for DIY, automotive, plumbing, electronics, furniture assembly, and more
Who Is This Kit For?
Whether you're a home DIY enthusiast, a professional tradesperson, or a hobbyist builder, this assortment kit saves you time hunting for individual fasteners. Having all seven metric sizes on hand means fewer trips to the hardware store and more time getting the job done.
Made in China.
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Frequently Asked Questions
Q: What sizes are included in this nylon insert locknut assortment kit?
A: This 170-piece assortment kit includes seven metric sizes: M3, M4, M5, M6, M8, M10, and M12 nylon insert locknuts, giving you broad coverage for most DIY, automotive, and mechanical fastening projects.
Q: Are these hex nylon insert locknuts reusable?
A: Nylon insert locknuts can be reused a limited number of times. However, for critical or high-vibration assemblies, it is generally recommended to use a new locknut each time to ensure the nylon insert maintains its full locking performance.
Q: What material are these locknuts made from?
A: The nuts are constructed from iron with an integrated nylon insert collar. This combination provides solid structural strength from the iron body and reliable thread-locking from the nylon insert.
Q: What types of projects are these nylon locknuts suitable for?
A: These hex nylon insert locknuts are highly versatile and suitable for a wide range of applications including automotive repairs, plumbing fixtures, electronics enclosures, machinery, furniture assembly, and general DIY home improvement projects.