lag screw
n.
A heavy screw used for wood and having a usually hexagonal or square head.
[From LAG2 (from its original use in securing barrel staves).]
lag screwhexagonal head lag screw
| 单词 | lag screw |
| 释义 | lag screw n. A heavy screw used for wood and having a usually hexagonal or square head. [From LAG2 (from its original use in securing barrel staves).] lag screwhexagonal head lag screw |
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