
I was concerned about the quality as they are 8 times cheaper than my local hardware store but they worked great. I used a 1/2" drill bit for the hole and inserted them with a 10mm allen wrench (on a 3/8 ratchet). I've used 42 inserts without a single problem. I highly recommend them.

POWERTEC 4 Inch 20 2 Inch QTB1005 T Slot: A Revolutionary, High-Quality Power Tool Accessory!
8 Review

π Carriage Prime Line Products GD52103
6 Review

Premium Eapele 4X4 Wood Fence πͺ΅ Post Anchor Base: Secure Your Fence with Ease
8 Review

π© 5-Pack of M8x60mm Stainless Steel External Hex Expansion Bolts by Yasorn
10 Review