The all new Bont Cycling Cleat T-Nuts now made of 316 marine grade stainless steel.Features: Corrosion Resistant Lasting Durability Bont Cycling shoes feature replaceable T-Nuts for mounting all three-hole cleat systems to the base of the shoe.Each replacement T-Nut kit contains six individual pieces and is compatible across the following Bont Cycling models: Vaypor S Vaypor T Vaypor+ Zero+ Zero+ T Crono MK2 Maintenance tipsBont Cycling t-nuts can be replaced by simply pushing against or punching out the existing t-nuts from the outside of the shoe.The new t-nuts drop into place from the inside of the shoe and the pressure of the cleat bolt installation will allow it to 'bite' into the sole.If your new t-nuts seem to spin too easy, use Loctite 401 or similar to hold them in place for initial tightening.