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2021
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P/S
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Screws of metal; nuts of metal; screw-in nuts of metal; fixing bolts of metal; lock bolts of meta... |
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2020
|
P/S
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screws of metal; nuts of metal; screw-in nuts of metal; fixing bolts of metal; lock bolts of meta... |
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2019
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P/S
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wrenches (hand tools); screwdrivers; taps (hand tools); locking hand operated tools; sockets (han... |
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2013
|
Invention
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Self-locking nut assembly.
A self-locking nut assembly includes a nut, and a washer connected wi... |
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2009
|
Invention
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Unlocking-resistant and loosening-resistant nut assembly.
An unlocking-resistant and loosening-r... |
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2007
|
Invention
|
Nut |
|
|
Invention
|
Bolt and washer assembly having self-locking and burglarproof functions.
A bolt and washer assem... |
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2006
|
P/S
|
SCREWS OF METAL; NUTS OF METAL; INDUSTRIAL PACKAGING CONTAINERS OF METAL; SCREW-IN NUTS OF METAL;... |
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|
Invention
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Method for producing hexagonal washer. Hexagonal washers are formed by the following steps: at le... |
|
|
Invention
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Method for producing circular washer. Circular washers are formed by the following steps: at leas... |
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|
Invention
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Plastic fastening device. A novel plastic fastening device is provided herein, which mainly conta... |
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2005
|
Invention
|
Loose-proof screw bolt.
A loose-screw bolt is disclosed. The screw bolt comprises a pad, a bolt ... |
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2003
|
Invention
|
Structure of an anti-burglar screw bolt. An anti-burglar screw bolt includes a bolt, first and se... |
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2002
|
Invention
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Structure of an anti-burglar screw bolt. An improved structure of an anti-burglar screw bolt havi... |
