The clasp on my bag broke.
この箱には留め金が付いていて、しっかり閉まる。
This box has a latch and closes securely.
I undid the clasp on the bag and took out the contents.
I fastened the clasp on the door so no one could get in.
The clasp on the necklace broke.
The clasp on my watch had become loose, so I got it fixed.
錠 refers to a lock, often operated with a key or combination, whereas 留め金 is a simple mechanical clasp without a locking mechanism.
留め具 is a general word for any fastening device (buttons, zippers, clasps, etc.), while 留め金 refers specifically to a metal clasp or latch.
counter for small objects; counter for pieces · counter for military units · individual; one person · counter for years of age difference; counter for school years
Standard kanji spelling; high priority in news and frequency lists.
Alternate kanji spelling using 止める; less common than 留め金.
Search-only kana-kanji mixed form; not a standard written variant.
Search-only abbreviated kanji form; not commonly used.
Compound of 留め (tome, 'stopping, fastening', the continuative form of 留める) + 金 (kane, 'metal'), with rendaku voicing to がね. Literally 'fastening metal'.