The mortgage bolt is an element of railway fasteners. The anchor bolt is used for rail fastenings, in which it attaches metal pads and rails to reinforced concrete sleepers. The mortgage bolt is used in KB50 and KB65 fasteners. Embedded bolts are completed with M22 nuts in accordance with GOST 16018-79. The mass of one embedded bolt with a nut is 0.761 kg. Cage bolts with nuts are equipped with spring two-turn washers M25 according to GOST 21797-76, insulating bushings TsP-142 and flat washers TsP-138.
