These work perfectly. If used with a long bolt and an overkill nut (or any other nut) you've got a mag-pin with the option to tighten it down on loose fitting attachments. The heads are small enough not to interfere with adjacent rack holes.
Exactly what I was looking for to hold my Rogue Mace and EZ curl bar. I was looking to store both bars in a low-profile way on my Rep Modular Storage shelf upright, and The Vault was the best solution I could find. It's highly protective with the liner against the upright and the barbell and provides a little flare with the backer color option. This is my first purchase from FrogFits and I'm impressed.
It's honestly perfect for its intended purpose. Well-constructed, only requires a single bolt for mounting, protects from metal on metal contact, all at an excellent price point! Also, looks great!
Perfect fit for my m24 bolts that came with my beyond power voltra fixed mounts. Snug, secure, and great magnet hold. Works great on its own, but even better paired with knurled nuts for extra security. Like them so much I'm buying four more. Can't beat the value and utility.