Bed bolts hold the posts and rails of pencil post and other poster beds together. A billet of 3/8" diameter steel is hot forged to create a 3/8" square head with a built in 15/16" flange. Each is supplied with a 3/4" square nut. Our bed bolts and nuts have 16 threads per inch. Most beds use 8 bolts, some use only 4.