Goods received in next days post and sales staff were helpful and friendly. Would use this company again. 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. The fixings you are using are too large for the Washer. This prevents the Washer from flexing as the Cap is being pushed on. Rather than making a cap (like everyone else) that doesn't work, Pro-Dec set about a radical re-design:

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. 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 While all care possible has been taken in tabling this data, we accept no liability for any inaccuracies, omissions or currency of information contained herein. Nobody wants to look at screw heads on their new sign so these provide the finishing touch leaving a professional looking installation. Fantastic range of colours to suit most jobs. Great customer service and speedy turn around.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.

Most 'star' caps rely on an interference (or friction) between the sides of the driver recess and the 4 'wings' of the stem of the cap.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. Great to see such amazing customer service in a society where this has become increasingly rare. Fantastic product too - they seemed to be the only company that I could find with ease online, that offered Bifix Poxi Caps with a colour-match option. Can't recommend highly enough. We needed some screw caps to match some pre-finished timber products. With their help on the phone we found the closest match to our RAL code and when received they were perfect. The customer service saved us a lot of time and hassle and saved us buying several colours which wouldn't have been needed. many thanks 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. The range of colours and quality of the snap caps is only bettered by the service offered by the team.

Trying to find good colour matches to boards is always a head ache,ring Screwcaps UK give them the board code and the problem is solved, great service thanks keith This guarantees a good grip in both Phillips and Pozidriv screws, even when screws are out-of-tolerance, burred and damaged. In fact, this makes Bifix the best ‘Pozi’ cap available – part of the reason Bifix is the only ‘Pozi’ cap to be granted a patent in the UK.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. 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 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. 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 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!