screw; screw spike
Refers to a threaded fastener, often a wood screw or a screw spike used in construction or railways.
This shelf is fixed with screws.
Drive screw spikes into the railway sleepers.
A screw in general; ねじ釘 specifically refers to a screw that functions like a nail (e.g., a wood screw or spike).
A smaller machine screw, often used with a nut or in metal; ねじ釘 is typically larger and used directly in wood or ties.
Standard kanji-kana mixed spelling.
Katakana variant for ねじ, common in technical contexts.
Full katakana spelling, mainly for search or emphasis.
Rarely used kanji form; 螺子 is an uncommon spelling for ねじ.
Compound of ねじ (screw) and 釘 (nail). The exact historical derivation is uncertain, but the word transparently describes a nail-like screw.