Emtek 5122HLOUS10BLH Helios LH Single Cylinder Keyed Entry Door Lever SQ RoseORB Emtek's single cylinder leversets use traditional American locks, complete with a variety of trim styles, handcrafted from authentic materials. The leverset is operated by a key from the exterior, and a thumbturn from the interior. Uncompromisingly rugged and beautifully crafted, these locks are suitable for the very finest homes. The Brass Modern Collection's knob / lever handles are supported by springs mounted behind the rosettes and sideplates, which return the handles back to the rest position and prevent lever sag. The latches are heavy-duty die cast construction, with strong internal springs, solid brass nose bolts, and sintered metal cams. A plastic bushing located in the joint between the handle and the rosette ensures a friction-free wear surface, preventing metal from bearing on metal and providing smooth, long-lasting operation. Handles are positively connected to rosettes with a permanent clip. Each has a set screw which eliminates "handle wobble" when tightened. Emtek's threaded tubes are machined brass to ensure good threads and prevent corrosion. Single Cylinder Keyed Entry: Single cylinder keyed entry door hardware is locked and unlocked from the exterior using a key and can be locked and unlocked from the interior using the locking mechanism. Perfect for securing entrances, side doors, and anywhere else that needs a bit more security. Features: Constructed from solid brass for a heavy duty feel and lasting durability Includes all necessary hardware for easy installation Covered by Emtek's limited lifetime mechanical manufacturer warranty Features Product Technologies: Solid Brass Construction: This product begins with raw bars of solid brass which are heated and pounded into specially made dies - producing a stronger, more substantial, product. The difference between lesser metals and heat forged brass is noticeable the minute you hold it in your hands - solid brass is heavier, smoother, and naturally resists corrosion. Specifications: Backset: 2-3/4" or 2-3/8" Cross Bore: 2-1/8" Edge Bore: 1" Door Thickness: 1-1/4" to 2-1/16" Handing: Left Handle Length: 4-3/4" Handle Projection: 2-3/4" Product Weight: 5.00 lbs. Latch Faceplate: Round Corner or Square Corner Cylinder: 5 Pin Schlage C Fast Shipping You're already purchasing the item. Why wait for slow shipping? We get your order shipped out within 1-business day and delivered to your doorstep as quickly as possible. Competitive Pricing With our dynamic pricing model, our prices are always competitive. Our prices are some of the lowest that you will find on the internet. Rest assured that you're getting a good deal when purchasing with us. 30-day Money Back Guarantee if something is wrong We provide a money back guarantee if anything is wrong with the product you bought from us.