# US 12,006,961 B2 · Modular screw and method of manufacturing a modular screw > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,006,961 B2 - Document ID: US12006961B2 - Status: Granted - Kind: B2 - Application number: 17/590,399 - Filed: 2022-02-01 - Published: 2022-08-18 - Granted: 2024-06-11 - Earliest claimed: 2021-02-12 - Assignees: Illinois Tool Works Inc. - Applicants: Illinois Tool Works Inc. - Inventors: Sven Becker; Bruno Da Rocha; Andreas Jakob; Stefan Helbert; Nelson Santos - Web page: https://patentgrep.com/patent/US12006961B2 ## CPC - F16B 25/0094: {the screw being assembled or manufactured from several components, e.g. a tip out of a first material welded to shaft of a second material} - F16B 33/02: Shape of thread; Special thread-forms ({F16B25/00 takes precedence; used to remove paint or dirt layers F16B35/007, F16B37/002}; used as screw-locking device F16B39/30) - F16B 33/06: Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure {or fretting (corrosion preventing means F16B33/008; settable coatings for locking threaded members F16B39/225; deformable coatings for locking threaded members F16B39/34)} - F16B 35/048: {Specially-shaped necks (F16B35/06 takes precedence)} - F16B 39/26: with spring washers fastened to the nut or bolt-head - F16B 43/00: Washers or equivalent devices; Other devices for supporting bolt-heads or nuts (circlips F16B21/18; {for indicating tensile load F16B31/02; forming a whole with the bolt or nut F16B33/00; locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates F16B39/10, F16B39/24}) - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) ## Abstract A modular screw is provided, wherein the screw includes, in an axial direction, the following elements: a screw head, a shank having a second functional portion, a third functional portion for distributing a prestressing force, wherein a washer is arranged in the second functional portion and is mounted so as to be rotatable about a longitudinal axis of the screw, and a fourth functional portion having an external thread, and wherein the washer is secured in an approximately positionally fixed manner in the axial direction by bearing against the second and the fourth functional portion. ## Claims ### Claim 1 A modular screw, wherein the screw has, in an axial direction, the following elements: a screw head, a shank having a first functional portion, a second functional portion, a third functional portion, for distributing a prestressing force, wherein a washer is arranged in the third functional portion and is mounted so as to be rotatable about a longitudinal axis of the screw, and a fourth functional portion having an external thread, and wherein the washer is secured in an approximately positionally fixed manner in the axial direction by bearing against the second functional portion and the fourth functional portion; wherein the first functional portion is between the screw head and the second functional portion, wherein a clamping disk is arranged in the first functional portion to form a prestressing portion. ### Claim 2 (depends on 1) The modular screw as claimed in claim 1, wherein the clamping disk takes the form of a disk spring and is connected and secured to the shank in a positionally fixed manner. ### Claim 3 (depends on 1) The modular screw as claimed in claim 1, wherein the second functional portion is a compression-limiting portion whose diameter is larger than a diameter of the external thread. ### Claim 4 (depends on 1) The modular screw as claimed in claim 1, wherein the washer has a larger diameter than the second functional portion. ### Claim 5 (depends on 1) The modular screw as claimed in claim 1, wherein the modular screw is installed in a through-opening of a component, wherein a length of the second functional portion and of the third functional portion in the axial direction is less than a height of the through-opening of the component in the axial direction. ### Claim 6 (depends on 1) The modular screw as claimed in claim 1, produced by pressing the screw head and the shank in a pressing machine, applying the washer and/or clamping disk to the shank, in a rolling machine, and rolling the external thread in the rolling machine. ### Claim 7 A modular screw, wherein the screw has, in an axial direction, the following elements: a screw head, a shank having a first functional portion, for applying a prestressing force, wherein a clamping disk is arranged in the first functional portion adjacent to the screw head, wherein the clamping disk takes the form of a disk spring and is connected and secured to the shank in a positionally fixed manner, a second functional portion, a third functional portion, wherein a washer is arranged in the third functional portion and is mounted so as to be rotatable about a longitudinal axis of the screw, and a fourth functional portion having an external thread, wherein the washer is secured in a positionally fixed manner, in the axial direction, between the third functional portion and the external thread of the fourth functional portion by bearing against the second functional portion and the external thread of the fourth functional portion. ### Claim 8 (depends on 7) The modular screw as claimed in claim 7, wherein the clamping disk has a connecting means via which the clamping disk is connected to the shank in a positionally fixed manner by means of frictional and/or form-fitting engagement, wherein the connecting means is designed to provide a frictional connection. ### Claim 9 (depends on 8) The modular screw as claimed in claim 8, wherein the clamping disk has a through-opening, wherein the connecting means takes the form of tabs having retaining edges, said tabs being directed from an edge of the through-opening in the radial direction inwardly in the direction of the longitudinal axis. ### Claim 10 (depends on 7) A method for producing the screw as claimed in claim 7, comprising the following steps: pressing the screw head and the shank in a pressing machine, applying the clamping disk and/or the washer in a feeding device of a rolling machine, and rolling the external thread in the rolling machine, and heat-treating and/or coating the modular screw.