5/8" x 12" Timber Bolt - Galvanized

Galvanized timber bolts sometimes called mushroom head bolts or dome head bolts can be used in both marine and treated wood applications due to the heavy galvanization applied to the bolts. The underside of the over-sized rounded bolt head has four nubs or fins which prevent the bolt from turning in the timber. Timber bolts can be used for many of the same applications as machine bolts and the over-sized head eliminates the need for a washer on the bolt head end. Great for a clean installation on challenge courses, ropes courses and obstacle courses.