Thread Protection Nut Caps
We offer two types of Thread Protection Nut Caps: standard and telescopic. The standard is suited for minimal thread coverage, while the telescopic version is designed for longer exposed threads or use with washers.
Made from durable LDPE, our Telescopic Nut Caps provide a quick push-fit solution to cover and protect nuts and threads from dirt, damage, corrosion and injury, while giving a neat finish.
The unique attributes of the nut and washer caps are that they have a clamping edge which grips underneath the chamfer on the nut, providing a strong connection. Internal ribs deform when inserted onto the nut to increase the clamping effect, and a sealing lip protects the nut, thread and in some variants the washer from the elements.
Customer Insight: Caps with larger inside lengths can be used to accommodate larger threads or multiple nuts.
We stock sizes from M3 to M90 in a range of different lengths. We also offer telescopic caps which can be used for multiple lengths of thread.
Our range comes in black as standard as it offers the highest UV resistance, but we are able to manufacture custom requirements in any RAL colour. For further info on custom colour runs, please get in touch on 01233 713581.
Our LDPE can withstand constant temperatures of 70ºC and is resistant to:
- Seawater
- Non-oxidising acids
- Non-oxidising alkaline solutions
- Alcohol
- Fuels
- Oils
- Greases
Our entire range of Thread Protection Caps is also available on request in Polypropylene, Nylon, TEEE and ETFE. We also offer Secure Nut & Bolt Caps and Domed Nut & Bolt Caps.
Where are Thread Protection Caps commonly used?
Thread protection caps are commonly used in the following applications:
- Flanged assemblies
- Outside and industrial lighting
- Bridges
- Playgrounds
- Marine systems
- Road guardrails
Looking for a custom style or variant for your use? Call one of our experts on 01233 713 581
Frequently Asked Questions
Yes, nut protection caps help protect exposed nuts and threads from moisture, dirt and corrosion, extending the life of the fastener, especially in outdoor environments.
Thread Protection Nut Caps are designed to cover both the hex nut and the exposed threaded stud or threaded rod, providing greater protection than standard nut caps that only cover the nut itself.
Yes. Thread Protection Nut Caps help protect exposed nuts and threaded fasteners from rain, dirt, moisture and UV exposure, making them suitable for construction, fencing, engineering and outdoor installations.
Yes. Thread Protection Nut Caps help prevent moisture, dirt and other contaminants from reaching exposed nuts and threaded rods, reducing the risk of corrosion and extending fastener life.
Need your parts tomorrow? Our rapid same day dispatch has got you covered! Simply place your order before 4pm Mon-Thurs or 2pm Friday and select our Next Day Delivery service in the shopping cart. We also offer Guaranteed AM delivery when required, in addition to a Saturday delivery option.
If you don't mind waiting, we have a Free delivery method for orders over £30, and an economic £4.85 2nd Class delivery for orders between £20-£30.
Free Samples can be requested through our product pages, displayed in the sizing table beside the product you require. Please note you can always give us a call on 01233 713 581 or contact us on Live Chat to discuss samples.
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If you're unsure which part you need then please do not hesitate to give one of our friendly Sales Team a call on 01233 713 581 and they can assist you. Alternatively, we're active on Live Chat during office hours. You can open this using the button in the bottom right corner of the website. Alternatively, you can write to us using our contact form.
We offer a return period on all of our products to give you peace of mind, to view our policies and learn more about this process should it be required, please see our returns policy page.
In most cases we have the facilities to offer you different colours of a product, specific to your requirements. Minimum order quantities may apply depending on the manufacturing technique in question, but please get in touch with any queries you may have.
Please note that there is a minimum order value of £10 through our website (inclusive of VAT).
If you're new to our website you may want to check out our frequently asked questions section for answers to common customer queries.
While browsing the website you may come across abbreviations used for material names that you are unfamiliar with. You can find an explanation for these in our material abbreviations guide.