PS175Z 3/4" INS.PLASTIC STAPLE | For metallic and non-metallic cording and cable. Easy to install, drive both zinc-plated nails together without splitting wood. Recessed nail heads for minimum exposure. Smooth saddle (3/8 in width) prevents damage to insulation. High-grade, injection molded polypropylene resists rot, rust, deterioration and effects of extreme temperature, non-conductive for safe and secure cable fastening.