QUICK INSTALL | 2 holes install much quicker then 3-hole t-nuts and are just as secure for climbing walls COMPLETE | T-Nuts includes three screws for easy, painless installation on rock climbing walls These require a 7/16 drill bit for creating the holes. Calcium Build-Up, Limescale & Rust Stain Remover 750ml – EcoConcepts These are the standard t-nuts for climbing gyms. Featuring 2 holes for faster install and a longer barrel. Standard for climbing walls, wood working... Perangkat Keras Baja Tahan Lama T-nut Gym Industri Mendaki Keluar Mudah Dipasang HIGH QUALITY | These premium T-Nuts come with a zinc plated finish for reduced corrosion Featuring 2 holes for faster install and a longer barrel. Screw-in t-nuts allow easy installation and keep the t-nuts from popping out or spinning compared to a 4-prong t-nut. CONVENIENT | Screw-in T-Nuts require less maintenance than traditional 4 prong T-Nuts need Volume Inserts 100 Escape Climbing Screw In T-nut For Rock Climbing Holds By Escape Climbing Wall Panel