How to correctly match lock size to chain thickness
You've got a padlock and you're looking for a chain to use it with. Or you've got a chain and you're wondering what padlock is going to fit it. These are common...
Why your lock sizes matters when using a security chain
Lock size is a critical factor when pairing a lock with a security chain because the two components must work as a single system. A mismatch in size can signifi...
How to check whether your padlock will fit your security chain
To check if a padlock will fit a security chain, you need to compare the padlock's internal clearance with the internal dimensions of the chain link - not just...
Closed-shackle vs open-shackle padlocks: What is the difference?
Closed-shackle padlocks are generally more secure than open-shackle padlocks because they expose less of the shackle to cutting tools. However, the right choice...
Video: DIB D-Lock product overview
Below is a short video overview of the SFB DIB D-Lock/U-Lock, showing how it can be used with various of our Protector range of security chains:
Video: Pragmasis RoundLock product overview
Below is a short video overview of the SFB RoundLock, showing how it can be used with our Protector 16mm and 13mm chains and, with the optional RL21A socket, wi...
Will the RoundLock fit my brake disc?
The RoundLock has a 22mm pin which will fit through a majority of motorcycle brake discs but it won't fit through most scooter discs. There's an easy way to wor...
How to deal with dirty, sticking or jamming locks
Dealing with Dirty, Sticking or Jamming Locks: If a lock has already got dirt inside and is starting to get sticky to operate with the key, it is a good idea to...
My lock has frozen, what can I do?
Locks can freeze, which can be a pain if you need access. Follow these tips to prevent yours from freezing in the first place - and what to do if yours has froz...
I’ve lost my keys, can they be replaced?
Our locks are supplied with 3 keys. If you have lost yours, don’t panic, we may be able to help. When you ordered your lock, the keys will come with a small t...
I've got a worn, bent or broken key
There are those who have broken a key or those who will break a key. Accidents happen! Some keys are more prone to being bent than others. The keys supplied wit...
Have your locks been independently tested?
Yes, we submit our locks for independent testing and approval and have been awarded the top ratings in multiple categories. Sold Secure, an independent UK ant...
Do I need to maintain my lock?
All locks need a little bit of love. Locks used outside and exposed to the elements. You an avoid this with proper maintenance. Dirt, salt and water can sti...
What does the CEN grade mean on a padlock?
You might have seen a CEN Rating on a padlock and wondered what it is. The CEN grade stands for Central European Norm and it's a padlock testing standard. The C...