11. _Reinforce sliding glass doors with a vertical bolt lock and a pole bar in the floor track. 12. Always lock your doors with dead-bolt locks . 13. Another unique feature is the bolt lock . 14. Our double-front door had blown wide open-- the dead-bolt lock still extended, but wrenched from the socket. 15. Doors should have a dead-bolt lock . 16. Following this rearward movement, the bolt locks to the rear and the barrel is forced forward by its spring. 17. Tightening the bolt locks the rest into a set position that is now customized to the shooters hand size. 18. The bolt in the "'bolt lock "'is a rectangle of metal that is constrained to slide only back and forward. 19. During the last portion of its forward travel, the bolt locks into the barrel and pushes the barrel back into battery. 20. Just recently, Bubka had an extra brick wall erected in the hallway and installed a thick, steel door with heavy, dead-bolt locks .
