API10 Oilfield 2-3/8'' Hinged Stop Collar With Bolt 

1.Application and characteristic    Position device (stop ring or stop collar), called position ring, stop circular, brake ring, etc.    It is used to limit  the centralizer or cement basket slip on casing. It is divided into mobile    screw type, fixed screw type and buckle type. 2. Install and use the method     a. When use mobile screw type stop collar, slip over the casing, tighten the screws using wrench.     b. When use fixed screw stop collar, put the collar around the casing, insert the screw, and         knock into screws by hammer.     c. when install buckle type stop collar, buckle the stop collar onto the casing, lock with pin,         knock into the screws. 3. Property Parameters Specifications,mm…