Inquiry (采购产品): commercial hinge I cannot locate hinges for a metal door in an office setting. The doors slams shut very hard and I have been told than I need new hinges. They are 4 1/2 inches, plate has 4 screw holes and they supposedly are adjustable by using an allen wrench in the top/bottom of the hinge. There is no adjustment left. Is this a pneumatic hinge, spring hinge? and do you carry? **** Hidden Message ***** Karen Babcock PA 18702 USA Company: HealthSouth Title: Administrator Phone: 570-824-1100 E-mail: karen.babcock@healthsouth.com **** Hidden Message ***** karen.babcock@healthsouth.com