Hygienic Cap Nuts
Hygienic Cap Nuts feature a blue seal which prevents water and bacterial from seeping into hard to reach places and completely cover any exposed thread. The seal also prevents the metal on metal contact which can also be unhygienic due to the friction when fastening. We offer our Hygienic Nuts with EPDM or NBR seals.
Our Hygienic Nuts are made from A4 Stainless Steel and have a maximum roughness of 0.8μm Ra to limit microscopic bacteria. These Screws are EHEDG Hygienic Standard Type EL – Class I AUX Certified and 3-A (RPSCQC) Certified and have a self-draining design making them suitable for us in wash-down areas. A primary benefit when cleaning these bolts is that they can be jet washed; this is particularly useful within food manufacturing settings where large volumes of liquid and food can spill over.
The Nuts are the female equivilent of our Hygienic Hex Head Screws and are also available in M5 to M24 threads.
What is the difference between EPDM and NBR sealants?
NBR is resistant to oils, fuels and chemicals whereas EPDM has a good level of resistance to UV, heat and weathering. They can both be used within hygienic settings due to their low absorption to water which can harbour bacteria.
Where are Hygienic Nuts commonly used?
- Clinical settings such as Hospitals
- Wash-down Areas
- Food Manufacturing and Preparation Areas
- Pharmaceutical Manufacturing
- Laboratories
Can't find the size you need? Get in touch on 01233 713581
Frequently Asked Questions
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.
You do not need to sign up to place an order, but it is recommended if you'd like to gain loyalty points, giving discount off future orders. To learn more about loyalty points, please view our rewards scheme page.
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.