Corbin Grade 1 Tri-Packed Adjustable Door Closer with Sex Nuts Bolts, Dark Bronze The effective choice for high traffic situations. The DC3000 Series Door Closers fulfill security and life safety requirements by ensuring reliable latching for access control and fire code compliance, along with ease of operation and precise adjustability for barrier free code compliance. Ideal for virtually all door openings and draft conditions in both new construction and renovation. Features Meets or exceeds ANSI/BHMA A156.4 Grade 1 requirements Compliance with building and barrier-free codes Up to full 180 door opening One-piece seamless steel spring tube seals in hydraulic fluid Tapered valves allow precise adjustment Cast iron body Quik-Install mounting bracket speeds installation, reducing errors Powder painted arms and retrofit plates Specifications Finish: Dark Bronze Closer Size: Adj. 1 to 6 Arm Type: Double Lever Arm with PA Bracket Back Check: Adjustable Cement Case: No Cold Weather Fluid: Yes Cover: Plastic Cover Hand: Non-Handed Hold Open: No Mounting Group: Hydraulic Mounting Location: Push or Pull Side Mounting Style: Tri Mount Screw Type: Self Tapping Series: DC6000 Series Voltage: Mechanical Through Bolts: Yes Mounting: Parallel Arm Maximum Opening: 180 Degree Weight: 10 lbs