Locking of screws, bolts or nuts

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER

F16B39/00Locking of screws, bolts or nuts

F16B39/01specially adapted to prevent loosening at extreme temperatures F16B39/02in which the locking takes place after screwing down F16B39/021by injecting a settable material after the screwing down F16B39/023by driving a conic or wedge-shaped expander through the threaded element F16B39/025by plastic deformation of a part of one of the threaded elements into a notch or cavity of the other threaded element F16B39/026by swaging the nut on the bolt F16B39/028by means of an auxiliary bolt or threaded element whose action provokes the deformation of the main bolt or nut and thereby its blocking F16B39/04with a member penetrating the screw-threaded surface of at least one part F16B39/06with a pin or staple parallel to the bolt axis F16B39/08with a cap interacting with the nut, connected to the bolt by a pin or cotter pin F16B39/10by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt F16B39/101with a plate, spring, wire or ring holding two or more nuts or bolt heads which are mainly in the same plane F16B39/103with a locking cup washer, ring or sleeve surrounding the nut or bolt head and being partially deformed on the nut or bolt head, or on the object itself F16B39/105locking the bold head or nut into a hole or cavity F16B39/106with a deformable locking element F16B39/108with a locking washer under the nut or bolt head having at least one tongue or lug folded against the nut or bolt head, or against the object itself F16B39/12by means of locknuts F16B39/122foreseen with mating surfaces inclined F16B39/124with helically inclined mating surfaces F16B39/126causing radial forces on the bolt-shaft F16B39/128by means of eccentrical or spiral interengaging parts F16B39/14made of thin sheet material or formed as spring-washers F16B39/16in which the screw-thread of the locknut differs from that of the nut F16B39/18in which the locknut grips with screw-thread in the nuts as well as on the bolt F16B39/20by means of steel wire or the like F16B39/22in which the locking takes place during screwing down or tightening F16B39/225by means of a settable material F16B39/24by means of washers, spring washers, or resilient plates that lock against the object F16B39/26with spring washers fastened to the nut or bolt-head F16B39/28by special members on, or shape of, the nut or bolt F16B39/282Locking by means of special shape of work-engaging surfaces F16B39/2825causing the bolt to tilt F16B39/284Locking by means of elastic deformation F16B39/286caused by saw cuts F16B39/30Locking exclusively by special shape of the screw-thread F16B39/32Locking by means of a pawl or pawl-like tongue F16B39/34Locking by deformable inserts or like parts F16B39/36with conical locking parts, which may be split, including use of separate rings co-operating therewith F16B39/38with a second part of the screw-thread which may be resiliently mounted