they are Allen head bolt covers
Depends on the kind of plastic, but most are.
depends on if it is roll caps made of paper or plastic caps they all have different amounts.
The caps on plastic 2-liter bottles of soda and bottles of water are made of plastic. Other bottle caps are made of steel, and some are made from aluminum lined with polyethylene.
Wheel center caps are generally made of aluminum or chrome plastic.
The caps are held in place by injected plastic, press them out either with a press or with undesize and oversize socket and hammer method, the plastic will break and allow the caps to press out. Do not use a torch, you risk exploding the caps out of the yoke causing personal injury. The plastic does not need to be melted out to release the caps. good luck
St. Lukes in the Lehigh Valley Pa randomly collects plastic bottle caps for different children.
Plastic is generally the plastic material that is used for spout caps. The materials used for spout caps must be non-permiable and must be strong enough to withstand many types of liquids.
Hub caps?
No,there not
Yes you can. It is not plastic,so it can be put in a garbage cointanier.
There are a number of different craft that can be made by using plastic caps. Some of the ideas for reusing these caps are kids crafts such as making lady bug toys or fridge magnets. By using toothpicks these can be made into spinning tops, or one can even use the caps to make pin cushions.
People usually remove the caps on plastic bottles specially on festivals so as to make the water bottle less painful as the water leaks out.