noun
dowel; guide dowel
A wooden or metal pin used to align and join two pieces of material, especially in woodworking or construction.
板と板を合わせ釘で固定する。
Fix the boards together with a dowel.
この家具は合わせ釘だけで組み立てられている。
This piece of furniture is assembled using only dowels.
Compound of 合わせ (matching, joining) and 釘 (nail). The term describes a nail-like pin used to align parts during assembly.