This is a door closer spring for a wood screen door. It is 13/32 in. in diameter and 16-3/8 in. long. Made from tempered spring wire, with a zinc plated finish and has closed loops at each end. Use anchor hooks to attach it to the door and the jamb.
Used on wood screen doors to help close. Wire diameter is 0.40625. Nickel plated spring steel. Maximum safe load is 19.60 lbs. Tempered spring wire. Solid height is 16-3/8 in. For further dimensional information, please see the line drawing.
Extension springs absorb and store energy as well as create a resistance to a pulling force. These springs are normally attached at both ends to other components and when these components move apart, the spring tries to bring them back together again.
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