230.21XABKN Backplate, short, made of stainless steel in B-technology for neck diameter 21.3 mm, composite synthetic material and steel backplate substructure, integrated spring-assisted restraining "hold-up" module, can be used for left or right-hand. Screwed joint with 5 mm Spax screws support pins. Backplate cap made of stainless steel (1.4301), 45 x 170 mm, 10.5 mm high, 1.5 mm wall thickness. Surface satin finished KN version - short stems, supplied without screws Article no.: HEWI 230.21XABKN