| Patents for B21H 3 - Making helical bodies or bodies having parts of helical shape (2,057) |
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| 05/09/2013 | US20130115025 Production method for a semi-finished product and semi-finished product |
| 05/08/2013 | CN202921844U Thread rolling machine of capacitor shell |
| 05/08/2013 | CN202921843U Steel tube threaded screw rolling machine with material conveying and receiving device |
| 05/08/2013 | CN103084521A Method for simultaneous roll-forming of threads and splines of shaft parts |
| 05/02/2013 | WO2013060491A1 Drill and production method for a drill |
| 04/25/2013 | WO2013027684A3 Form-rolling die structure and form-rolling method for compound screw |
| 04/25/2013 | US20130102401 Method and apparatus for manufacturing a dual-threaded bolt |
| 04/24/2013 | CN202894160U High-speed rail threaded spike plate-type cross wedge roller rolling mold |
| 04/24/2013 | CN202894159U Rod piece external thread screw rolling machine |
| 04/24/2013 | CN202894158U Deformation control mechanism for pipe thread rolling with two-wheeled thread roller |
| 04/24/2013 | CN103056258A Method for machining bolt threads |
| 04/24/2013 | CN103056257A Cantilever type rotation supporting and positioning device for processing irregular part threads on numerical control roll machine |
| 04/17/2013 | CN103042143A Device for machining threads |
| 04/16/2013 | US8419556 Nut, female thread machining device and female thread machining method |
| 04/11/2013 | DE102007007808B4 Walzwerkzeug und Verfahren zum Formen eines Gewindes oder eines Schraubenprofils und eines Keilprofils, das eine geringe Anzahl von Zähnen aufweist, durch gleichzeitiges Walzen Rolling tool and method for molding a thread of a screw or wedge profile and a profile that has a small number of teeth, by simultaneously rolls |
| 04/10/2013 | CN202861290U Thread rolling machine |
| 04/10/2013 | CN202861289U External screw thread cold extruding forming device |
| 04/10/2013 | CN202861288U Rebar straight thread rolling machine |
| 04/02/2013 | US8409021 Method for manufacturing fitting including blind nut and tap tool for use in this method |
| 03/27/2013 | CN202824479U Automatic feeding thread-rolling machine with screw bolt |
| 03/27/2013 | CN202824478U Sliding supporting plate of thread-rolling machine |
| 03/27/2013 | CN103003007A Process for producing a semifinished product |
| 03/27/2013 | CN103003006A Process for producing a semifinished product and a semifinished product |
| 03/20/2013 | EP2570206A1 Profile rolling machine |
| 03/20/2013 | CN202804046U Thread rolling machine |
| 03/20/2013 | CN202804045U Screw rolling machine |
| 03/13/2013 | CN202779581U Oil nozzle thread forming die |
| 03/13/2013 | CN202779580U Automatic loading and unloading mechanism for thread roller |
| 03/13/2013 | CN202779579U Spline rolling tool |
| 03/13/2013 | CN202779578U Machine tool for rolling straight threads on reinforcing bars |
| 03/13/2013 | CN202779577U Rebar screw rolling machine |
| 03/13/2013 | CN102962384A Thread rolling machine |
| 02/28/2013 | WO2013027684A2 Form-rolling die structure and form-rolling method for compound screw |
| 02/27/2013 | CN102189213B Rotary-forging forming and feeding device for internal thread pipe |
| 02/27/2013 | CN102145443B Method for processing U-shaped bolts |
| 02/26/2013 | US8382601 Method and device for manufacturing fastenings or fasteners with radial outer contours, especially screws or threaded bolts |
| 02/20/2013 | CN202741649U Special device for machining of sucker rod head |
| 02/20/2013 | CN102935577A Short-ending light bolt ending section rolling strengthening method and strengthening rollers |
| 02/13/2013 | CN202725908U U-shaped elastic discharging hopper |
| 02/13/2013 | CN102921849A Nail feeding device of thread rolling machine |
| 02/13/2013 | CN102921848A Multi-station cold rolling forming method for splines and cutter mounting device for cold rolling mill |
| 02/07/2013 | WO2013018624A1 Lubricating oil for rolling and rolling method |
| 02/06/2013 | CN102909296A Reinforcing steel bar thread rolling machine |
| 01/30/2013 | CN202701236U Automatic thread rolling machine |
| 01/30/2013 | CN202701235U Thread rolling supporting plate |
| 01/30/2013 | CN202701234U Stripping thread rolling machine head free of being debugged by test rods |
| 01/30/2013 | CN202701233U Screw rod thread rolling machine capable of automatically sleeving gasket |
| 01/30/2013 | CN102900741A Coupling screw, manufacturing method thereof and thread forming plates of coupling screw |
| 01/30/2013 | CN101821516B Screw head recess drive and corresponding driver tool and recess punch |
| 01/24/2013 | WO2012161506A3 Thread rolling tap |
| 01/24/2013 | US20130022427 Metallic glass fastening screw |
| 01/24/2013 | DE102010031316B4 Herstellungsverfahren für ein längliches Halbzeug Manufacturing method for an elongated semifinished |
| 01/23/2013 | CN202683888U Inclined-thread wear-resistant thread rolling plate |
| 01/23/2013 | CN202683887U Two-side abrasion-resistant thread rolling plate |
| 01/23/2013 | CN202683886U Screw plate with double-faced saw-tooth patterns |
| 01/23/2013 | CN202683885U Inclined-grain thread rolling plate |
| 01/23/2013 | CN202683884U Thread rolling head of straight thread machine tool for rolling reinforcing steel bars |
| 01/23/2013 | CN202683883U Abrasion-resistant inclined grain thread rolling wheel with guide corner |
| 01/23/2013 | CN202683882U Abrasion-resistant tooth arc circular scraps-containing inclined grain thread rolling wheel |
| 01/23/2013 | CN202683881U Tooth top arc wear-resisting scrap containing twill thread rolling wheel with guide angle |
| 01/23/2013 | CN202683880U Wear-resistant sloping grain thread rolling wheel |
| 01/23/2013 | CN202683879U Rounded crest wear-resisting straight-line cylindrical die roll containing guide angles |
| 01/23/2013 | CN202683878U Rounded crest chip-containing diagonal-thread cylindrical die roll |
| 01/23/2013 | CN202683877U Scrap-accommodating straight-grain thread rolling wheel containing guide angle |
| 01/23/2013 | CN202683876U Crest arc chip-containing diagonal-thread cylindrical die roll with guide angle |
| 01/23/2013 | CN202683865U Cutting head of straight thread machine tool for rolling reinforcing steel bars |
| 01/23/2013 | CN102172749B Thread rolling machine |
| 01/17/2013 | WO2012161507A3 Thread rolling tap |
| 01/16/2013 | CN102873236A Steel bar thread roller |
| 01/09/2013 | EP2543453A1 Titanium alloy bolt manufacturing facility and method for manufacturing titanium alloy bolt using same |
| 01/09/2013 | CN101994742B Lock screw |
| 01/09/2013 | CN101831990B Rebar rounding rolling straight thread connector and processing equipment thereof |
| 01/03/2013 | US20130004262 Screw method for forming a screw thread |
| 01/03/2013 | DE102011078256A1 Schraube und Verfahren zur Herstellung eines Schraubgewindes Screw and methods for manufacturing of a screw thread |
| 01/02/2013 | EP2540410A1 Screw and method for producing a screw thread |
| 01/02/2013 | CN202639173U Screw thread and pattern rolling board |
| 01/02/2013 | CN202639172U Screw pump stator or rotor rolling machine |
| 01/02/2013 | CN102852939A Screw method for forming a screw thread |
| 12/27/2012 | US20120328393 Rolling die |
| 12/26/2012 | CN202621802U Detachable sloping grain flat die roll |
| 12/26/2012 | CN202621801U Thread rolling plate with double-surface thread lines |
| 12/26/2012 | CN202621800U Straight-grain detachable thread rolling plate |
| 12/26/2012 | CN202621799U Thread rolling plate with double detachable surfaces |
| 12/26/2012 | CN202621798U Double-face abrasion-resistant thread rolling plate |
| 12/26/2012 | CN202621797U Wearable double-face thread rolling plate |
| 12/26/2012 | CN202621796U Straight grain thread rolling wheel capable of accommodating scraps and provided with circular arc crests |
| 12/26/2012 | CN202621795U Wear-resisting scrap-accommodating straight grain thread rolling die with circular arc crests and guiding angles |
| 12/26/2012 | CN202621794U Wear-resistant inclined-line thread-rolling wheel with guide angle and arc-shaped thread tops |
| 12/26/2012 | CN202621793U Wear-resistant chip-conditioning straight-line thread-rolling wheel |
| 12/26/2012 | CN202621792U Wear-resisting chip-accommodating sloping-grain thread roller |
| 12/26/2012 | CN202621791U Wear-resistant chip-conditioning straight-line thread rolling wheel with guide angle |
| 12/26/2012 | CN202621790U Sloping grain chip containing cylindrical die roll |
| 12/26/2012 | CN202621789U Wear-resisting straight-pattern cylindrical die roll with guide angle |
| 12/26/2012 | CN202621788U Scraps-containing inclined grain thread rolling wheel with guide angle |
| 12/26/2012 | CN202621787U Wear-resisting crest arc chip-accommodating straight-grain thread roller |
| 12/26/2012 | CN202621786U Bias thread roller including guiding angle |
| 12/26/2012 | CN202621785U Straight grain thread rolling die with circular arc crests |
| 12/26/2012 | CN102844130A Metallic glass fastening screw |
| 12/26/2012 | CN101829747B Thread rolling die |
| 12/19/2012 | EP2533919A1 Method of forming anchor bolts |