Bommer
3-1/2 x 3-1/2 x 5/8 Radius Stainless Steel Spring Hinge, Pair, Bommer LB4392C-350
The Bommer LB4392C-350-630 is a pair of 3-1/2" x 3-1/2" x 5/8" Radius Stainless Steel Spring Hinges. These single-action hinges are tension adjustable and designed for high-cycle door applications.
Constructed from 304 Stainless Steel (Gauge .130), this unit is UL Listed (R-4667) and certified Grade 1 for fire door applications, rated for 1 million cycles. The package includes tensioning hardware, locking pins, and installation screws for wood or metal doors.

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