We had these good-quality brass flat-head screws made to our specifications. They are rolled brass with well-defined threads and strong necks, and have machine-cut slot-drive heads.
The countersink angle is 90° for flush fitting with the chamfer angle commonly found on today's hardware. As with all brass screws, a countersunk pilot hole is recommended before installation.
The screws come with a clear lacquer coating to help prevent oxidation and discoloration.
Offered in packages of 10 and 100.