Copyright © 2026 Kotomora. All Rights Reserved.

Words Kanji Guides About

つまみねじ Japanese meaning | Kotomora

つまみねじ

Meanings

1

noun

thumbscrew

A screw with a knurled or wing-like head designed to be tightened and loosened by hand, without tools.

このカバーはつまみねじで固こ定ていされている。
This cover is secured with thumbscrews.
つまみねじを手てで回まわして取とり外はずす。
Remove it by turning the thumbscrew by hand.

Written forms

つまみネジ
Mixed kana-katakana spelling, common in technical contexts.
ツマミネジ
Full-width katakana spelling, often used in parts lists or technical documents.

Similar words

ねじ
ねじ is a general screw; つまみねじ specifically refers to a screw designed for hand operation.
ボルト
ボルト is a bolt, typically used with a nut and tightened with a tool, while つまみねじ is tightened by hand.

Etymology

Compound of つまみ (pinch, grip) and ねじ (screw), referring to a screw that can be gripped and turned by hand.