D&D Technologies Tru-Close® TCA1L2S3BTS Pair Regular Safety Gate Hinge with Legs and Screw. TruClose® Safety Gate Hinges are the world's most trusted child safety gate hinges. These polymer hinges were devised to overcome all the problems associated with conventional gate hinges – rust, binding, sagging and staining. The engineering-grade polymers and a stainless-steel closing springs deliver hinges designed to last a lifetime.