Not all rigging terminals are the same! There are various reasons why it is important to use a very high quality rigging terminal. Some of the budget terminals may have inconsistent bore depths and diameters which may lead to early failure, or there simply isn't enough chrome on the body of the bottle screws to keep that shine for the life of the rig screw. A low silicone content in the bronze of the bottle body for instance, is more likely to bind with the stainless steel studs, which may lead to you not being able to tune your rig in the future.
At North Spar we only use the highest quality rigging terminals such as StaLok, Hasselfors and Navtec ensuring that, looked after correctly, you will receive years of trouble free sailing.
We carry a full stock of terminals should you wish to inspect or compare them before fitting to your mast.