noun
T-nut; blind nut
A nut with prongs or claws that bite into the material, used in woodworking and furniture assembly.
この棚の組み立てには、爪付きナットを使います。
Use T-nuts to assemble this shelf.
Abbreviated spelling without き; common in technical contexts.
Compound of 爪 (つめ, 'claw') + 付き (つき, 'attached') + ナット ('nut').