Features:

This hinge is one kind of universal hinge suitable for all different of glasses,such as wood sunglasses,plastic sunglasses,aluminum frame,horn eyeglasses,bamboo sunglasses etc. as its installing way is by riveting instead of soldering,so suitable for any frame which has the soldering problem;

Ways of installing hinges onto glasses frames:
by single rivets: 6.0mm shaft length for front hinge, 7.0mm shaft length for temple hinge.
Please note the rivets are matched free for retail orders.

Material: high nickel;

Size: 8.0mm width, 4.0mm height, 16.2m total length after assembled (front hinge:7.5mm + temple hinge:8.7mm);
drawing of TH-31: