Used Grass 850 or 850-01 Hinge - "Cup" only -Springs are good and the action is smooth. One hinge per package. The 850 hinge cup is a direct fit replacement for the 830 hinge cup. It fits the same holes and adjusts the same. The only difference is the 850 is stamped steel while the 830 is cast zinc.
Mounting plates sold separately.
What does "Refurbished" mean to me? These hinges arrive to us from various sources and in various conditions. We separate the usable from the unusable. The usable are cleaned in a solvent with rust inhibitors and inspected for operation. A high quality grease is applied to pivot pin, pressure pin and spring ends. The hinges are tested again for operation before final approval.