Hillman 3/8 in. X 3-1/2 in. L Zinc-Plated Steel Carriage Bolt 50 pk 885 Sub Brand: CoreCam

Sub Brand: CoreCam

Fits Pipe Size: 1/2 in

Universal dust extraction means there is no need for a dedicated hole pat

They are also available in black for color coding by size

It writes when the paper is wet

Hillman 3/8 in. X 3-1/2 in. L Zinc-Plated Steel Carriage Bolt 50 pk 885 Sub Brand: CoreCamCarriage bolts are designed to fasten a wooden face to either a wood or metal frame. Its flat head is designed to eliminate the need for a washer and provide a semi flush finish to applications. The square underside of the head is self locking to eliminate spinning and the need for a driving tool. The zinc plating is rust resistant and provides a beautiful, consistent finish, but, may not work for all exterior projects. * Brand Name: HILLMAN Head