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2022
|
Invention
|
Cylindrical die for thread form rolling |
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|
Invention
|
Planetarium fixed die for thread form rolling |
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|
Invention
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Fastening structure with double nuts having dual-threaded screw. Fastening art with double nuts f... |
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2021
|
Invention
|
Flat threading rolling die |
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2019
|
Invention
|
Dual-threaded screw structure and fastening structure therewith. A dual-threaded screw structure ... |
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|
Invention
|
Dual-thread structure and fastener for same. ss1s6s6 are formed larger than the effective diamete... |
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2016
|
Invention
|
Dual-threaded screw structure. The dual-threaded screw structure 1 has a first thread (S1) and a ... |
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|
Invention
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Double-screw structure. This double-screw structure 1 has a loosening prevention function, has a ... |
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2015
|
Invention
|
Bolt |
|
2004
|
Invention
|
Method and device for manufacturing bolt, screw rolling die used therefor, and multiple screw bol... |
