Depends on the type of "cap" one used as there are caulked in caps and then the mission rubber company type of CAP and some people confuse a plug as a cap. The closure at a cleanout will often be a soft or flexible circular insert into a terra-cotta fitting.
Cap screw
Jic is a 37° Flared Fitting sae is a 45° Flared Fitting
They lack the close fitting measurements that a dedicated tool would have . They also have a tendency to 'round off' the corners of the fastener itself due to a poor fit .
You would have to get the larger sizes cuppler with a reducer to the smaller size and then join it together
cloche
could be a watch cap or a skullcap maybe even a slough hat
A hat that fits close to the entire crown of your head rather than just around the outer edge.
A toboggan hat is a ski cap. It is a close-fitting woolen cap and often has a tapering tail with a tassel. A toboggan isn't acknowledged as a hat by all sources; however, many dictionaries and Wikipedia do recognize it.
Answer : Shruga short jacket or close fitting cardigan
* rounded brimless cap fitting the crown of the head * the dome of the skull
"transmission fluid leaking from fitting below radiator cap after replacing radiator on 99 surburban
A coif is basically a kind of close-fitting cap, like a skullcap. The term can also be used for a kind of combination helmet/neck protector piece of armor.
Tartan trousers worn in Scotland are called trews.
Trews. I don't think that they are worn in Ireland.
Skullcap has two word definitions. The word 'skullcap' is defined as a small close-fitting cap without a brim on it. The word 'skullcap' also means the top part of the skull.
The traditional stocking cap worn by Danish men came in brown or red. The top of the cap was not close-fitting, it was longish and folded across the top of the head. Some of them had a tassel on the end.