Back to the Product Catalog Building Materials Choose a Different Catalog Section... Building Materials Construction/Specialty Tools Specialty Equipment Rope and Webbing Safety Equipment Climbing Gear Lighting Pulleys and Zip Brake Block Signs, Safety, and Element Pre-Built/Custom Items Rescue/First Aid Games and Initiatives Publications Toys for Boys and Girls ----------------------------------------------------- Extreme Series Hardware Teams Kit   Double Coil, Spring Lock (For 5/8") - $.40 For 3/4" - $.45   Description Hot Dip Galvanized Used on poles to allow for expansion and contraction; used on trees to allow for growth. (Great locking mechanism.) Additional Information Fits 5/8" Bolts Fits 3/4" Bolts