Hands down the best – I buy tons of T slot extrusions and it is absolutely absurd what every other company charges for this stuff – Like, it actually makes me sick thinking about it…. I go through tons of T slot extrusions and fasteners every week and I’m so glad I recently found these guys. I mean, honestly, six bucks for an anchor assembly? That’s grounds for getting pushed into traffic, if you ask me.. Tnutz’ prices are on point. They are also the only company that actually ships your product inside of a week, and more often its actually inside of a day. I wish they stocked more 15 series profiles so that i didn’t have to ever buy elsewhere. I’m definitely a believer.