Yeah, it depends on what you're looking for. McMaster is great for high quality serious Machine Shop level stuff, not so much for household oddities.

Recently I needed some vinyl siding hooks[0], a really oddball size drawer slide, and replacement window springs. I ended up getting all of them on Amazon - even tracking back the manufacturers they seemed to exclusively sell on Amazon.

0) https://www.amazon.com/dp/B083TPKJN1/ref=cm_sw_r_sms_awdb_im...