ἧλος (hēloshay'-losnounnail)
[Grk] ἧλος LN: 6.22 GK: G2464 Hebrew: מְזַמְּרָה, מַסְמֵר, מַסְמֵר, שֹׁטֵט
Derivation: of uncertain affinity;
Strong's: a stud, i.e. spike
KJV: --nail.