The screw heads protrude from the fabric for just a rationale. such as, on a sofa where by the domed screw heads are higher than The material and supply a ornamental contact.
These parts are also called screw heads. https://zoyagxog195392.bcbloggers.com/29215818/the-smart-trick-of-types-of-screw-heads-that-no-one-is-discussing