4pcs Hydraulic Hinges Heavy Duty | Hold Open | 4.5x4.5 | 8ft | 260 lbs | 1 ¾” Thick | SS304 | K51M-450-D4

Hydraulic door hinges use a dual mechanism—spring tension for controlled self closing and hydraulic damping for soft closing—to handle large commercial doors up to 260 lbs. This configuration delivers soft-close motion and 90° hold-open position for 8ft tall door in high-traffic applications. No extra hardware needed. Attention: This model is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Offices  Interior Use Only Frameless Glass Door French Style  Quiet area Breezy environments 8ft Door Product Description and Features Apply for door open ≤ 120°  Fully adjustable closing force and speed according to environment needs Numerical adjustment panel on hinge end to set up precise tension Include both mechanical and hydraulic mechanism supporting quiet close needs Aesthetically pleasing compared to door closers -- without obtrusive arm Hold-open feature to keep door stay open at 90° Installation Kits   Both machined #12-24 UNC ½”L and wooden tapping #12 x 1