Casing Centralizer With Spiral Nail Stop collars, Hinged with Set Screws 7 5/8" Product Description 1.Stop collar description Hold centralizersor cement baskets on any position of casing, which ensures the positions of centralizers or cement basket to meet the design. The stop collars are available in three types: KnockOn Type, Spiral Nail Type and Set Screw Type. The stop collars can be installed on any position on casing to limit the axial movement of centralizers and cement baskets. 2.Stop collar character 1. The stop collars are available in…