noun
mounting bracket; metal fitting; hardware for attaching
A metal part used to attach or secure something to a surface, wall, or other structure. Often used in construction, DIY, and machinery contexts.
棚を取り付けるために、取り付け金具を買ってきた。
I bought mounting brackets to install the shelf.
この取り付け金具はステンレス製で、屋外でも使えます。
This metal fitting is made of stainless steel and can be used outdoors.
Compound of 取り付け (mounting, attaching) + 金具 (metal fitting). The exact historical derivation is straightforward from its components.