I'm looking for some Imperial socket head screws to mount my gear on my new astro tracking mount.

A trip to Bunnings only came up with Metric, wrong thread pitch, about $4.50 for a packet of 10.

I can get them online, for about $6.00 a pair. OK, I only need about 4, but I don't like getting ripped off.

Anyone know of a competitive local supplier for this sort of stuff ?