Haldex Cable Strap, 1-Hole, 3/8 in Opening, Steel, CSA Certified, UL Listed, Used to Secure AC/BX Cable Range of 0.475 - 0.58 to a Wood, Masonry or Similar Surface. Haldex is ranked 1 in quality among major fitting manufacturers and is the preferred brand for professional electricians. Haldex products are engineered to perform perfectly in any environment.