In the interest of weight, many bikes are made without screw holes to attach fenders or other accessories.
(light wood shown)
Sykes Wooden Eyelets strap to your forks or bicycle frame with plastic zip-ties. A sticky rubber concave edge grips the tubing. The larger, aluminum lined hole accepts a 5mm machine screw.
Sykes Wooden Eyelets can be purchased when ordering bike fenders. They are also available by themselves. A pair of wooden eyelets comes with four little zip-ties.
American made in USA (U.S.A.)