וְאֶת־הָאֶ֜לֶף וּשְׁבַ֤ע הַמֵּאוֹת֙ וַחֲמִשָּׁ֣ה וְשִׁבְעִ֔ים עָשָׂ֥ה וָוִ֖ים לָעַמּוּדִ֑ים וְצִפָּ֥ה רָאשֵׁיהֶ֖ם וְחִשַּׁ֥ק אֹתָֽם׃
And of the thousand seven hundred seventy and five shekels he made hooks for the pillars, and overlaid their capitals, and made fillets for them.
Read kabbalistic (mystical) interpretation of Exodus 38:28: and classical mystical sources.