The Crimson–Hinged Spiral Nail Stop Collar uses two spiral locking pins which when driven in firmly lock the collar into position around the casing. This Stop Collar can be used in both upset and non-upset casing. Provides maximum annular clearance. They can be latched onto the casing pipe without having to be slipped on at the end of the casing pipe, thus allowing Quick and easy installation. These Stop Collars undergo a special process of rust prevention before Painting.

Available in sizes 4 1/2″ to 20. (Any special sizes or combinations can be available on request)