4011.US28 RH. The 4011 Series Smoothee LCN Door Closer is a high quality and reliable choice of door hardware. It is suitable for use on internal and external fire doors and has been rated for FD120 timber applications and FD60 steel applications, having been tested to BS EN 1154 & BS EN 1634 as well as being CE marked. This closer is designed for use on pull side applications and it is supplied boxed with all required fixings.. Powder coated silver finish. CE Certified. For pull side applications. Supplied complete with all fixings plus plastic cover and regular arm