Best Deals Right Now

JLB Plastics UK Dome Bolt Nut Protection Cap Covers Review: Practical protection for exposed nuts

JLB Plastics UK - White Plastic Dome Bolt Nut Protection Cap Covers (Pack of 100 Caps, M8 / 13mm Spanner)
4.5
[Available Sizes]  Sizes M4 through M20 accommodate a wide range of fasteners and fittings.
[Bulk Pack Options]  Packs from 5 to 2000 units ideal for small projects or large inventories.
[Durable LDPE Material]  High-quality low-density polyethylene offers flexibility, impact resistance, and long service life.
[Easy Installation]  Push-on fit or soften in hot water for faster, simpler application.
[Secure Protective Fit]  Designed to stay put, providing protection and a neat finished appearance.
Show More

Hardware accessory for tidy fixings, promising neat protection for exposed nuts and bolts. For homeowners and tradespeople who want a cleaner finish, JLB Plastics UK Dome Bolt Nut Protection Cap Covers bring simple, practical coverage. Are they suitable for small repairs and larger projects alike?

⚡ At a Glance
  • Protective Performance: Dome shape conceals nut heads while the low-density polyethylene construction gives a tidy finish
  • Best for: DIYers and tradespeople refreshing or concealing exposed nuts and bolts
  • Not ideal for: Applications that require metal fastener strength or repeated threaded access

White dome caps are moulded from low-density polyethylene and push on for a secure hold. Sizes run from M4 to M20 with a wide range of pack quantities available.


Quick, fuss-free fitting - with flexible LDPE material

Low-density polyethylene is pliable, allowing caps to stretch slightly over nut heads; warming in hot water softens the plastic for an easier push-on fit. The simple interference fit holds caps in place without additional fasteners.

Fast push-on application reduces installation time and works without special tools, making small repairs quicker to complete.

Cleaner visible fixings - with dome design and white colour

Rounded dome geometry covers hex heads and presents a smooth profile, while the white finish blends with lighter surfaces. The cap shape creates a uniform look across a run of fastenings.

Visible nuts are concealed to give a neater appearance on furniture, fencing and other exposed fittings.

Flexible ordering for any project - with multiple sizes and pack options

Available in metric sizes from M4 up to M20 and offered in a variety of pack quantities, including 100 caps for the listed item. Several pack choices suit single repairs through to bulk maintenance tasks.

Choose a small pack for occasional fixes or larger quantities for refurbishment work, avoiding excess waste and simplifying sourcing.

✨ The 4 Key Reasons for JLB Plastics UK Dome Bolt Nut Protection Cap Covers
  1. High-quality LDPE - users report dependable, long-lasting protection for visible fixings
  2. Wide size range - covers bolts from M4 to M20 for varied tasks
  3. Pack variety - choose quantities from small repairs to large-scale projects
  4. Simple installation - push-on fit or warm in hot water for snug seating
📋 Technical Details at a Glance
  • Category: BISS
  • Brand: JLB Plastics UK
  • Material: Low-density polyethylene (LDPE)
  • Colour: White
  • Shape: Dome cap
❓ Frequently Asked Questions

Q: Are these caps easy to fit?

A: Yes, caps push on for a secure hold and can be softened in hot water first to make fitting even easier; user reviews note straightforward installation.

Q: What sizes are available?

A: Sizes are available across a broad metric range, specifically M4, M5, M6, M8, M10, M12, M14, M16, M18 and M20.

Q: What are the caps made from?

A: Made from high-quality low-density polyethylene (LDPE); customer feedback highlights good quality and durability.

🏆 Our Verdict

Caps are ideal for DIYers and tradespeople who want a tidier finish and flexible sizing for repair or refurbishment work. The combination of LDPE construction, dome design and multiple pack options makes them practical and easy to source. Packs offer sensible long-term value for recurring maintenance and larger projects.