Snap-Caps™

Why is the airtight seal important?

It all has to do with how gases and water vapour behave in enclosed spaces, and is governed by a few Laws of Physics, such as Boyle’s, Charles’, Dalton’s & Henry’s. In essence, once water enters a space (because it is not sealed properly) instead of the water evaporating out again later, it becomes water vapour and remains in the space for a much longer time.

In a climate such as the UK’s, this means the screw-head is continually in water & oxygen environment, never getting to dry out properly. This can cause the fastener to corrode (rust) up to 20 times faster than if a cap had NOT been used!

This effect can be easily confirmed, by examining vehicles that use hinge-caps over the number-plate fixings. Even on cars less than 6 months old, zinc-coated screws will show signs of advanced corrosion.

Similar issues arise with ‘polytop’ style plastic-coated screws. Often the plastic coating will crack as the screw is being tightened into place. Water can enter these cracks and cause accelerated corrosion, resulting in visible rust streaks.

 

Uses & Applications

Because they are UV-stabilised and completely seal the head of the fixing, Snap-Caps are ideal for exterior as well as interior applications. Even in extreme environments, Snap-Caps can be expected to last for 10-15 years, all the while protecting the screwhead against corrosion.

Snap-Caps are used in the following industries:

• Aluminium frames (showerscreens, windows, doors and wardrobes)
• Shopfitters
• Caravans, mobile homes & transportable homes
• Boats (from small runabouts to Navy frigates, high-speed ferries and ocean liners)
• Signs
• Vehicle number plates – specific colours are available to match UK front and rear plates
• Cabinetry (concealing all types of fixings, incl. the screws used with door handles and knobs)
• Furniture upholstery
• White goods
• Electrical and signalling control boxes and panels (Snap-Caps are an excellent way to insulate fasteners)
• Other vehicle applications – buses, trains etc, Horse floats and other trailers
• Aircraft – private and corporate aircraft up to BA 777’s and Airbuses
• Aftermarket decoration of motorcycles, SUV’s, lorries and HGV cabs

WARNING: Variations between monitors means the colours will not display 100% accurately.  This Colour Chart should only be used as an indication of the colours available in our colour range. Please do NOT use this chart for color matching purposes. For further information, see Important Notes below.

Important Notes: Colour Chart is intended only as an indication to the colours available. Whilst all possible care has been taken to ensure the best colour reproduction possible, variations between monitors means the colours will not display 100% accurately.  Please do NOT use this chart for colour matching purposes. To ensure you select the best possible colour match, you should use the Colour Matching Guide or ask for samples before ordering. Pause mouse over colour swatch to check stock availability. Colours marked (M) are a metallic colour - they have a metallic "fleck" throughout them, similar to metallic car paint. They should not be confused with the Electroplated- finish Snap-Caps

 

Material

Snap-Caps are manufactured in Polypropylene.  All materials used are 'food-grade' quality.

Snap-Caps Dimensions

 

What types of fixings will work with Snap-Caps?

This table indicates some of the different types and sizes of fixings that can be used with Snap-Caps. It is by no means definitive, and there are numerous examples of imported fixings that are sized differently enough to not fit. If you have any additions to this table, or disagree with any information, please contact our Technical Department.

Do you have any photos showing how you have used Snap-Caps, which you would like to share with us?

Click on the thumbnails below

Real comments by real people!

To do your own review, please go to the Leave a Review page on the Contacts menu

	Thanks to the extremely helpful staff
Gary White From All seasons waterproof covers ltd On: 01/11/2020	After an excellent chat with one of your employees who patiently guided me to select the right product (exact size in this case did matter) we were over the moon to find that the snap caps did the job on the reverse side of a pop rivet perfectly, I will be putting in another order very soon.

 

	Snap Caps
Jamie Holden From Sealtite Windows On: 27/04/2020	Great product at a great price.

 

	Great quality and service
Carl Gigg From CSM Live On: 18/03/2020	The range of colours and quality of the snap caps is only bettered by the service offered by the team.

 

	Easy Transactions
Katie Hunt From ASCOTT ANALYTICAL EQUIPMENT LTD On: 18/02/2020	Rather than use the products, i place the orders. No issues with ScrewCaps UK, very prompt and reliable service. Would be better if they offered a credit account. No issues with product they sell
REPLY: Andrew From ScrewCaps UK	Hi Katie, I note that you are a regular buyer of Snap-Caps and we really appreciate this.  We are happy to offer a Trading Facility (Account) to customers trading in excess of £200 per month. Below this value does not justify the costs of maintaining an account due to the finance and administrative costs of double-handling these transactions. Having customers who order in smaller lots, or less frequently, pay by bank transfer or Credit Card, helps hold our costs down and therefore our prices.  More information about this can be found on the FAQ page.  Should you find your company buying in larger monthly values in the future, we would be delighted to offer you the trading facility.

 

	Thank you!
Jo From Essendon Country Club On: 14/02/2020	Can I say I have never dealt with a more efficient service on the phone 😊 Jo

 

	Excellent Snap Caps
Nick Stephens From Ace General Engineering (Cornwall) Ltd On: 14/02/2020	Excellent, good quality product, which are so easy to use and really finish the job off nicely. Excellent service always provided, the caps always arrive next day with out fail.

 

	Excellent service
Kevin mclernon From Betfred Manchester On: 04/02/2020	The order was taken over the phone very easily, the products were dispatched overnight and we received them within 2 days of ordering
REPLY: Andrew From ScrewCaps UK	Hi Kevin, Thanks for your order and we hope the caps were ideal for your purpose.  A lot of our customers need guaranteed overnight delivery which we are able to offer to most of the UK with the couriers we use (so long as orders are received before 3.30pm).  According to the courier records, you signed for the caps on January 29, so we can confirm this was a next-day delivery for you also.

 

	Great, responsive service!
Aron Juckes-Hughes From Pen Y Bryn Joinery Ltd - Denbigh, North Wales On: 31/01/2020	Great options to choose from, website was easy to navigate and the items were dispatched and received in rapid time!

 

	ScrewcapsUK
Nigel Spooner From RD Signs On: 24/01/2020	Ordered my snapcaps late afternoon, delivered the next day as promised. Easy to deal with, great product, would definatley recommend.

 

	*
STUART COX From BAREFOOT CARAVANS LTD On: 13/01/2020	Very good service, and quick delivery time

 

	Good colour range
Adrian de Candole From Bluedot Display Ltd On: 04/12/2019	Good product and comprehensive colour range

 

	Great product to finish our products with
Tim From Amarantyne Designs Ltd On: 04/12/2019	We use these caps on a range of our composite door canopies to allow our clients when installing them, to hide their screw-heads. They finish the job off nicely and the wide choice of available colours is a bonus.

 

	Great service
Cecil O'Brien From Greenford On: 14/11/2019	Very good product , i use these for all our hoarding projects. Very good customer service, very helpful and Professional. Recommended.

 

LINA Patino From good signs and print On: 26/06/2019	Great service, very helpful and speedy.

 

	Great product
Milly From London On: 14/01/2019	Easy to order, good choice of colours, they arrived very quickly and were perfect for the job. We would definitely recommend.

 

	Great product
Carl Bentley From CSM Live On: 26/09/2018	I need a method to cover screws for a high end client at a blue chip event and Snap-caps fitted the bill perfectly, not only was the product great the range of colours gave a perfect finish. The only problem i have was deciding what shade of blue to choose!!!!!!

 

	Snapcaps
Margaret Grimbly From Devon On: 08/09/2018	Superb service and good quality product and thanks to your staff

 

	Fast and helpful
Mike Whitfield From Mike Whitfield Construction Ltd On: 02/07/2018	Great Service, knowledgeable and helpful. Would happily recommend.

 

	Excellent Service
Jade Bristow From Technical Fixings Solutions Ltd On: 01/03/2018	We ordered some snap caps from here and was very pleased with the quick and helpful service received. Will definitely be back and will let others know about ScrewCaps UK.

 

SnapTastic

paul From Digital Factory, Surrey On: 26/02/2018

Having used other suppliers in the past this time I researched the product and found the direct resellers. Charming on the phone & polite emails were all very forthcoming. The product itself is bar far the best solution to hiding screw heads IMHO and Pro-Dec provided a very competitive price with a next day delivery service. Colour swatch card will be inevitable for future builds which I will not hesitate to obtain quotes & stock from again. Many Thanks.

 

	everything was great
Martin Henn From Merklinger GmbH On: 22/02/2018	Hello, i was looking for some special Caps in two colors. I can´t found anything in Germany. In the UK i found SrewCaps and i´m very surprised about the very good service. I get fast answer to all of my questions. I get some samples very quickly and the final order was also fast and perfect. I would order anytime....! thank you for your help and sorry for my terrible english :) Best Regard Martin

 

	Great Service
darren From ETC On: 19/02/2018	Fast, effective and great service by your staff.

 

aaron From Electric Center On: 19/02/2018	very good

 

	Snapcaps
Margaret Grimbly From Devon On: 13/12/2017	Incredibly fast service and very helpful staff. Found just what I needed.Thank you.

 

	CoverCaps RAL 5011
Michelle From Lancashire On: 17/11/2017	Fast efficient service, product colour a good match against our existing

 

	Silver Grey & Blaze Snap Caps
Nick From Ace General Engineering (Cornwall) Ltd On: 12/09/2017	Very happy with the Snap Caps ordered from Screw Caps UK last week. The Silver Grey & Blaze colours matched up really well to the powder coated cladding we were installing. The Snap Caps are a really easy way of covering up screw heads and are so easy to install. Wouldn't hesitate to recommend these screw caps and the service provided by Screw Caps UK.

 

	Good Service
Helen From National Trust On: 14/07/2017	Goods received in next days post and sales staff were helpful and friendly. Would use this company again.

 

	Miss
Saadet Mounir From T & E Signs (UK) Ltd. On: 18/05/2017	Your sales person was absolutely FANTASTIC! She was SO helpful and her product knowledge was impeccable. She made it so easy for us and honestly I'd love to order with her again. I'll be asking for her specifically! I'm one very happy customer! THANK YOU! Edited by WebAdmin to remove Employee names.

 

	Duty Manager
Carol From Wookey Hole Caves On: 02/04/2017	This was a great fast service.Staff were helpful to match up the coulours with our sinage. Lots of choose.

 

	Snap caps
Pinnacle From Pinnacle On: 23/01/2017	Very quick delivery. Excellent product. Great range of colours. Suited our purpose exactly. Good price too!

 

	Director
Mark Brooks From Digital Deadline On: 19/01/2017	Great product with a wide colour range and good size options, fast delivery, great price and very helpful customer service, would definately recommend giving them a try.

 

	Great Service and Great Product
Alessio From London Architectural Glazing Ltd On: 23/11/2016	Great service from start to finish. Quality product and large colour selection. Will use it again.

 

Bob From Keighley On: 21/10/2016	The staff was very helpful and efficient The snap caps were used to cover the screws which hold the toilet down and were just what was required. Excellent job

 

	great product snap-caps
andrew loveday From Amey rail ltd On: 17/10/2016	Great service from start to finish, good range of colours, Order packed all ready to go when collected, friendly staff, will use again

 

	Great product
Luke Gilman From GBS On: 22/03/2016	A great product and next day delivery every time. We are very happy with the service from Screw caps UK.

 

	Good product, excellent service
Amanda From PCC Interiors Ltd On: 19/11/2015	Efficient service, helpful staff & a great product.

 

Fantastic product range

Richard From Reflex On: 30/10/2015

Couldn't be happier with the snap caps. The range of colours is outstanding and we managed to match our clients red and a bronze metallic! perfectly. We wouldn't usually use screw fixings to secure our graphics as our client demands such a high quality finish but having had issues in the past using high bond tapes at this particular location the snap caps were the perfect solution. The sample pack to choose colours is great, it contains all the colours and all the different styles available. Service is fantastic from the staff and delivery is next day.

 

	Buyer
Richard Fletcher From Wood & Wood Signs Ltd On: 11/08/2015	Good product and delivered promptly, chosing a colour was easy from the sample pack, ideal when matching to an existing sign.

 

Rob Ferns From Dorset Conservatory Blinds On: 26/06/2015	Fast and efficient service, good product (snap-caps)

 

	Mr
John From United Kingdom On: 05/05/2015	Very heplfull and speedy service. Was supplied with a colour matching sample pack before I chose the cap which made colour matching easy.

 

	Fast Delivery
Scott From Morris Homes On: 05/05/2015	Very quick delivery, very efficient. Havent used the product yet but so far so good

 

Excellent service

Marc Fisher From M & S Interiors Ltd On: 22/04/2015

We placed an order on a weekend using the downloadable order form which we printed off, completed, scanned and emailed back across with our card details. The order was acknowledged and a query as to whether we wanted matt or gloss finish was emailed which we replied to. The next day the materials all arrived along with a sample pack which is a great help to us now for choosing the best colour match to our furniture. Will definitely be using over and over again.

 

	Great product and service.
From Greatwood Jenkins Ltd On: 02/04/2015	I spoke to a helpful guy on the phone who was very enthusiastic and helpful about the range of Snap Cap products. We bought a pack of caps and the sample chart. Very prompt delivery and great customer service. Wouldn't hesitate to use them again.

 

	Friendly and prompt service
Dawn From Lee Warren Ltd On: 31/03/2015	I have had no complaints with the Snap caps brought so far ( and that has been a few thousand). The price is good and delivery always on time with a friendly and prompt service.

 

	Perfect for the job
Georgina From Beaufield Homes Ltd On: 28/03/2015	Very prompt and friendly service. The caps did the job. The comprehensive colour chart pack is very useful for getting a colour match. Definitely use SnapCaps again.

 

	Professional from placing an order to delivery
Michelle From Spaceright Europe On: 27/03/2015	Fantastic customer service from placing an order to delivery. Their knowledge has helped our company choose the most suitable caps for our business. Highly recommended

 

	Caps that actually work.....
Dave Metcalfe From Wilton Signs On: 27/03/2015	Great product and very good customer service. Our order came out the same day and arrived the day after.

 

	....give the finish we really care about
Nerys From Signspeed On: 13/08/2013	From start to finish the service was professional, prompt and friendly. The Snap-Caps will definitely be regular additions to the signs we produce, as they give the 'attention to detail' finish we really care about.

 

	Much better than Hinge Caps!
Chris Bannerman From 4Site Implementation Ltd On: 20/03/2013	I like the Snap Caps because they don't pop off unlike the hinge caps.   We received great service, and love your large colour range and good choice of products. Price is fair too.

 

Thank you for your interest in Snap-Caps.

Due to the range of colours and finishes available in the Caps, and the different styles of Washers available, Caps & Washers are priced and sold as separate items.  Trade Prices are from:

	Sizes 4/5 & 6/8 Snap-Caps Bag - 1,000 pcs		Size 10/12 Snap-Caps Bag - 1,000 pcs
Caps - (all colours)*	£17.40		£18.00
Washers -	£17.40		£18.00

* All colours (excluding Electroplated Snap-Caps) are the same price.

***  To order quantities of less than 1,000 caps of any colour, please contact one of our Re-Sellers.

 

Discounts available:

    10% OFF - Order £150 or more Product Value (excludes VAT, and can be made up from any mix of our products & colours)
    15% OFF - Order £300 or more Product Value (excludes VAT, and can be made up from any mix of our products & colours)

With so many types of caps and colours to choose from, our priority is to ensure you order the right product, size and colour for your application.  Please call our experienced UK Sales Team on 0845 1 776 332, and we will quickly guide you through the possible choices you have available.  You can then be confident you are ordering the type of cap that best fits your needs, and a colour to best suit your application.

 

 

 

Working in Winter - Using Snap-Caps in Cold Weather

Snap-Caps are designed and moulded to very fine tolerances.  The Cap & Washer interock together with a perfect air and watertight seal, protecting the head of the fixing against rusting for many years.  This also results in a very secure Cap that resists tampering.

Both cap and washer rely on the plastic distorting as the cap locks over the washer.  As the plastic become colder, it stiffens and does not flex as much.  For the type of plastic used for Snap-Caps, these changes to the behaviour of the plastic are most noticable when the plastic is below 15°C.

Fitting the Cap to the Washer may require more force.  It may also result in a white 'stress' ring forming around the perimeter of the cap. The white ring may disappear over time, especially if the caps are warmed up.

The Fix: Before using, simply warm the caps in an 'inside' pocket (ie close to your body), or in an oven or similar warming device to a maximum of 100°C. Once fitted, Snap-Caps can endure temperatures from -35°C to 120°C without problems. Because Snap-Caps are UV-stabilised, they can be used both indoors and outdoors.

 

Difficulty "snapping" the Cap onto the Washer

If you experience difficulty in locking the Cap over the Washer, and/or a White 'stress' ring (or halo) forms around the perimeter of the cap, there are a number of likely causes:

• The Caps are too cold, and the plastic will not flex

The Fix: See "Using Plastic Caps in Cold Weather" (above).

• The fixings you are using are too large for the Washer.  This prevents the Washer from flexing as the Cap is being pushed on.

The Fix:

• Ensure you are using the correct-sized Snap-Cap for the fixing.  Some imported fixings may not conform to British or EU standards, and the heads of the fixings may be up to 40% oversized
• Ensure you are using the correct Washer type for the head of the fixing - you MUST use a CSK Washer with Countersunk-head fixings, and F/B Washer for all "flat-bottomed" fixings such as pan-heads, flange-heads etc.
• Try the Snap-Cap with a smaller fixing.

• You are not using the correct technique to fit the Cap to the Washer.  Because Snap-Caps are designed and moulded to very fine tolerances, the caps cannot be pushed on "flat".  Do NOT hit Caps with a hammer (or similar) - it will cause the Caps to split

The Fix: Use the correct fitting technique.  Click diagram for details.