Why is umask ignored when uploading files over sftp?

Have a wierd issue with permissions on files uploaded to a remote system. Locally, the file index2.html is chmod 664: acoder@acoder-local ~ $ ll index2.html -rw-rw-r-- 1 acoder acoder 29 May 17 14:46 index2.html After uploading this same file to the remote system, the permissions on the remote directory show: -rw-r--r--. 1 acoder acoder 3657 May 17 14:43 index2.html I first thought I had incorrect umask setting on the remote system, but... [acoder@remote public_html]$ umask 0002 For comparison, if I touch a file on the remote system, the correct permissions (for the given umask) show: -rw-rw-r--. 1 acoder acoder 0 May 17 14:44 index3.html So, how are permissions set on files uploaded via sftp? Why is umask ignored when placing files over sftp?