90 degree hinge for acetate eyeglass frame TH-31

TH-31 8.0mm
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This hinge is one kind of universal hinge suitable for all different of glasses which has the soldering problem,such as wood sunglasses,plastic sunglasses,acetate sunglasses,aluminum frame,horn eyeglasses,bamboo sunglasses etc, as it's secured by screws or rivets.

Ways of installing:

for front: 4.2/5.2mm stem length screws;6.0mm stem length rivets;

for temple: 5.0mm,6.0mm,7.0mm single rivets; 3.5mm,4.2mm,5.0mm,6.0mm stem length screws;

Material: high nickel with nickel color plated.

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:

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