110-Pc Nylon Acorn Cap Nuts M3–M10 PA66 Black Kit + Storage Box

$25.75 $31.16

110-Piece Black Nylon Acorn Cap Nut Assortment Kit – M3 to M10

Give your bolts and threaded rods a cleaner, safer, and more finished look with this 110-piece black nylon acorn cap nut assortment. Designed with a smooth dome top and hex base, these cap nuts neatly cover exposed thread ends, reduce sharp edges, and deliver a polished appearance for hardware projects, furniture assembly, equipment repair, and DIY maintenance.

Made in Mainland China.

Durable PA66 Nylon Construction

Crafted from quality PA66 nylon, these cap nuts are lightweight, wear-resistant, and corrosion-free. The non-metal material is well-suited for a wide range of indoor and general hardware applications where a clean, protective cover is needed without adding excess weight.

6 Assorted Sizes – One Kit Does It All

This kit covers the most commonly used metric sizes from M3 to M10, so you always have the right nut on hand for repairs, assembly work, or replacements. Size breakdown:

M3 × 30 pcs
M4 × 30 pcs
M5 × 20 pcs
M6 × 10 pcs
M8 × 10 pcs
M10 × 10 pcs
Total: 110 pcs

Smooth Dome Cover Design

The rounded dome profile neatly caps exposed bolt ends, lending any installation a more professional, finished look. Ideal for furniture hardware, machinery parts, electrical projects, DIY crafts, and general workshop maintenance.

Convenient Transparent Storage Box

All 110 pieces arrive pre-sorted in a clear, compact storage box — making it easy to see every size at a glance, keep pieces organized, and grab exactly what you need without hunting through loose hardware. Box dimensions: 7.01 × 4.13 × 0.91 in (17.8 × 10.5 × 2.3 cm).

Wide Application

Compatible with threaded bolts, screws, rods, and other standard metric fasteners. Great for home repair, furniture assembly, machinery maintenance, DIY crafts, workshop use, and hardware replacement projects.

Package Includes

1 × 110-Piece Black Nylon Acorn Cap Nut Assortment (M3–M10)
1 × Transparent Storage Box

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Frequently Asked Questions

Q: What sizes are included in this nylon acorn cap nut assortment kit?

A: The kit includes six metric sizes — M3 (30 pcs), M4 (30 pcs), M5 (20 pcs), M6 (10 pcs), M8 (10 pcs), and M10 (10 pcs) — for a total of 110 black nylon dome hex cap nuts, covering the most common bolt and screw thread sizes used in DIY and workshop projects.

Q: Are these nylon cap nuts rust-proof and suitable for outdoor use?

A: Yes, PA66 nylon is a non-metal material that does not rust or corrode under typical conditions. These cap nuts are best suited for indoor and sheltered hardware applications. For prolonged exposure to harsh outdoor weather or UV conditions, consider using stainless steel cap nuts instead.

Q: What is the dome cap nut used for?

A: Acorn (dome) cap nuts are used to cover and protect exposed bolt or screw thread ends. They prevent sharp thread edges from causing scratches or injury, keep threads clean from dust and debris, and give any assembly a neat, finished appearance — perfect for furniture, DIY projects, electrical enclosures, and machinery.

Q: Do the cap nuts come in a storage box?

A: Yes. All 110 pieces come pre-sorted in a transparent plastic storage box (17.8 × 10.5 × 2.3 cm). The clear lid lets you see every size at once, and the divided compartments keep different sizes neatly separated and easy to access.