17mm head bolts are a low profile, high quailty, decorative head bolt designed to connect components at right angles or parallel. Head diameter matches our decorative head wood screws, cap nuts, and style "I" knock in insert. The 17mm head bolt with a shoulder is the same diameter as our decorative cap nut to allow through hole connection.

13mm head bolts are a low profile, high quality, decorative bolt similar but have a smaller head diameter of .511" (13mm).