METHOD OF BOLT MANUFACTURE AND BOLT Russian patent published in 2003 - IPC

FIELD: hardware. SUBSTANCE: lock bolt has head and shank and is additionally provided with body having support and guides. Body is made in form of separate load-bearing members parallel to one another and installed at distance equal to length of guides. Guides are made in form of coaxial holes in load-bearing members. Head is made in form of bodies of revolution installed on guides. Shank is made in form of additional guide and kinematically connected to head. EFFECT: higher resistance to breakage. 2 cl, 4 dwg