Button holes
The holes may be button holes, air holes, or holes caused by damage to the shirt.
Simply 'Thumb Holes'.
button holes arm holes head holes
sleve holes
The purpose of grommet holes in a tarpaulin is to provide a way to secure and fasten the tarpaulin in place using ropes, cords, or other fastening materials.
The size of the clearance hole for screws should be slightly larger than the diameter of the screw shaft to allow for easy insertion and proper fastening.
The proper way to check shirts for holes is to lay it out flat by a light. The light could be the sun, a lamp, or even a flashlight. Then you inspect the shirt using the light.
Velcro is a brand name for a material fastening system consisting of two components: a strip with tiny hooks and another with loops, which stick together when pressed. Croche is a type of hook-and-loop fastening system used to secure items together.
Some dress shirts commonly have holes, which are pockets. The pockets are just a apart of the shirt for stylish accent.
The recommended method for securely fastening a deck using lag bolts is to pre-drill holes in the wood to prevent splitting, then drive the lag bolts through the holes and into the support beams using a wrench or impact driver. Be sure to tighten the bolts securely to ensure a strong and stable connection.
Not all dress shirts come with holes for studs. Dress shirts designed for formal occasions, particularly those intended to be worn with tuxedos, may feature holes for studs, which are used to attach detachable collars or to fasten the front placket. However, many standard dress shirts are designed for regular use and do not include these features. Always check the specific shirt's design if you're looking for stud compatibility.
I think it's called a watch cuff