The Cranked Door Bolt is the perfect solution for additional home security. Iron Bolt This door bolt is made from malleable wrought iron. It has a black antique finish. Other Variations There are also other size variations available: 202mm (8") These other variations can be found in the related products. Straight & Cranked Versions Available Straight bolts are supplied complete with a frame fixing staple, for fitting to inward opening doors. Cranked bolts are supplied with a flat strike plate for outward opening doors or windows. The 125mm & the 202mm bolts ar...