ClassID:

39260

B21K1/56 - CPC Classification

Classification description:

Making machine elements screw-threaded elements

Recent Application in this class:
#1
20250326026
2025-10-23

METHOD OF MANUFACTURING BANJO BOLT

#2
20250188975
2025-06-12

FASTENER, DRIVER BIT AND PUNCH TOOL

#3
20250188974
2025-06-12

FASTENER, DRIVER BIT AND PUNCH TOOL

#4
20250178072
2025-06-05

METHOD FOR PRODUCTION OF A STAINLESS HIGH-STRENGTH SELF-DRILLING SCREW

#5
20240226993
2024-07-11

REBAR UPSETTING PROCESS AND REBAR UPSET FORGING MACHINE

#6
20240139798
2024-05-02

MANUFACTURING METHOD OF BALL SCREW USING ROLLING MACHINE

#7
20240131575
2024-04-25

Rebar upsetting process and rebar upset forging machine

#8
20240109121
2024-04-04

AN IMPROVED SCREW AND A METHOD OF MANUFACTURING THEREOF

#9
20230330739
2023-10-19

Method and plant for the fast manufacturing of fasteners

#10
20230135213
2023-05-04

Fastener, driver bit and punch tool

#11
20230003245
2023-01-05

STICK FIT FASTENER RECESS SYSTEM

#12
20220410253
2022-12-29

MANUFACTURING METHOD OF A DRILL

#13
20200298301
2020-09-24

Multistage press and method for producing a formed part

#14
20200230689
2020-07-23

Cylindrical tool matching system

#15
20200040931
2020-02-06

Bolt and method of manufacturing the same

#16
20190331152
2019-10-31

Wood screw and method for producing a wood screw

#17
20190186525
2019-06-20

Stick fit fastener recess system

#18
20190167324
2019-06-06

Method of making a self-cleaning self-cutting implant

#19
20190134871
2019-05-09

Pull or push rod or locking nut for a molding machine

#20
20180363691
2018-12-20

3-D-printed components including fasteners and methods for producing same

#21
20170282236
2017-10-05

Hollow metal screw and method of making

#22
20170074311
2017-03-16

Two-steel screw with an extrusion connection and method for producing said screw

#23
20160208841
2016-07-21

Hollow metal screw and method of making

#24
20160201710
2016-07-14

Hollow metal screw and method of making

#25
20160003281
2016-01-07

Hollow metal screw and method of making

#26
20150272645
2015-10-01

Universal length screw design and cutting instrument

#27
20150183014
2015-07-02

Method of manufacturing a hollow externally threaded fastener

#28
20150071705
2015-03-12

In situ formation of threads throughout bore of sleeve inserted into substrate hole

#29
20140335345
2014-11-13

CORROSION-RESISTANT SCREW, USE OF A SCREW OF THIS TYPE IN A CORROSIVE ENVIRONMENT, AND METHOD FOR THE FABRICATION OF A SCREW OF THIS TYPE

#30
20140331826
2014-11-13

Methods and apparatus for asymmetrical fastening system

#31
20140325815
2014-11-06

Method for hot forging threads into an end of a steel bar

#32
20140308091
2014-10-16

Locking bolt and method for manufacturing same

#33
20140112735
2014-04-24

Method and pair of pinching jaws for producing a drilling tip

#34
20130333165
2013-12-19

Fastener made of bulk amorphous alloy

#35
20130129447
2013-05-23

Modified Fastener and Insertion Tool

#36
20120189402
2012-07-26

Functional element in the form of a press-in element

#37
20120125072
2012-05-24

In situ formation of threads throughout bore of sleeve inserted into substrate hole

#38
20120079867
2012-04-05

Tool for deforming threads at a particular location on a fastener

#39
20120070247
2012-03-22

Method for manufacturing fastening screw and fastening screw

#40
20120057949
2012-03-08

Modified fastener and insertion tool

#41
20110195380
2011-08-11

Self-clearing self-cutting implant

#42
20110185783
2011-08-04

METHOD AND DEVICE FOR THE NON-CUTTING PRODUCTION OF AN OUTSIDE THREAD ON HOLLOW METAL WORK PIECES

#43
20110070050
2011-03-24

SCREW AND A METHOD FOR MANUFACTURING THE SAME

#44
20110045915
2011-02-24

METHOD FOR THE FABRICATION OF A SCREW MEMBER FOR PLATE MEMBER FASTENER

#45
20100316466
2010-12-16

Method for producing a threaded insert with an internal and external thread, and threaded insert

#46
20100216560
2010-08-26

Method for manufacturing a thread-forming screw

#47
20100054893
2010-03-04

Hollow bolt comprising a longitudinal bore

#48
20100048309
2010-02-25

Method and device for manufacturing fastenings or fasteners with radial outer contours, especially screws or threaded bolts

#49
20090214321
2009-08-27

SELF-DRILLING SCREW AND METHOD OF MAKING THE SAME

#50
20090183546
2009-07-23

Method for cold forging high strength fastener with austenitic 300 series material

#51
20090017924
2009-01-15

METHOD OF MANUFACTURING A BI-METAL SCREW

#52
20090003964
2009-01-01

Hybrid fastening system

#53
20080302162
2008-12-11

Cold-headed standoff

#54
20080135140
2008-06-12

High strength formed article comprising hyperfine grain structure steel and manufacturing method of the same

#55
20070178979
2007-08-02

Radius gimlet point anti-stripout screw

#56
20070009341
2007-01-11

Insert nut and insert t-nut

#57
20070000114
2007-01-04

Cold-headed standoff

#58
20060291979
2006-12-28

Radius gimlet point anti-stripout screw

#59
20060236740
2006-10-26

Method of producing left-right screw

#60
20060196330
2006-09-07

Method of forming a cold-headed standoff

#61
20060193713
2006-08-31

Thread-cutting screw

#62
20060137425
2006-06-29

Tube thread forming apparatus and method

#63
20060057413
2006-03-16

Hybrid fastening system and associated method of fastening

#64
20050262914
2005-12-01

Forging machine for the upsetting of deformed reinforcement bars

#65
20050233813
2005-10-20

Split die for forming grooved workpiece

#66
20050204562
2005-09-22

Method for the production of a spindle nut of a spherical thread drive mechanism

#67
20050103086
2005-05-19

Method of cold forming a self-attaching female fastener element

#68
20050050843
2005-03-10

Deformed reinforcing bar splice and method