To measure a cap diameter, measure the cap from one side of the inner wall of the cap to the opposite inner wall. ... To measure a bottle neck opening diameter, measure the diameter of the outermost threads by placing the opening of the bottle firmly against the notch on the right side of the cap measurer.
What is a cap thread?
Screw thread cap sizes are expressed in two numbers, which refer to the cap diameter (in millimeters) & the GPI finish (at the top of the container). For example, a size 38-430 cap has a diameter of 38 mm, & fits a container with a 430 GPI thread finish.
What is a 24 410 cap?
It can be easy to overlook the importance of a bottle cap. ... The 24-410 bottle caps are used for many types of containers. The first number, 24, indicates the diameter in meters of the inside cap opening. The second number, 410, references the thread type that is used for the cap.Jul 25, 2013
What is a 28 400 neck bottles?
28/400 is the neck width and depth. it will fit most quart bottles. ... This is 28.00 mm (about 1 1/8") diameter closure with one thread turn - pretty standard for all pint and up spray bottles.
What is a 28 400 cap?
Caps and closures are measured using two numbers in the format of 28-400 or 28/400: the first number is the distance in millimeters from outer thread to outer thread when looking at the top of the container; the second is a reference to the design of the threads themselves.