Bommer
4 x 4 x Square Corners Stainless Steel Spring Hinge, Pair, Bommer LB4390C-400-630
The Bommer LB4390C-400-630 is a pair of 4 x 4 x Square Corner Stainless Steel Spring Hinges, designed for fire door applications.
Constructed from 304 Stainless Steel, these hinges are UL Listed and certified Grade 1 for 1 million cycles. They feature tension adjustment and include all necessary hardware for installation, including #12 x 1-1/4" wood screws and #12-24 x 1/2" machine screws.

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