3.5 gram single use packet of epoxy appropriate for ski mounting screws or threaded insert installation (not for threadlocking metric mounting screws). This is a general purpose epoxy selected for an excellent balance of working time, hardening time, vibration resistance, and cold temperature resistance. Designed for bonding between steel or stainless steel and ski construction materials. Works very well for permanent threaded insert installation. 72 hr will take longer to set but will be stonger than 24hr. Either 24hr or 72hr are a safe and effective option.