IDEM Safety Gate Bolts Are suitable for a number of Tongue and Solenoid Locking Switches and for Non-Contact switches. They provide: • Rugged metal construction, providing shearing forces up to 10,000 Newtons on large hinged doors. • Once installed there is no need for extra brackets or door handles. • Not susceptible to misalignment damage. • Operators are required to manually close the guard, they cannot close accidentally.