
This is normal. The problem is that the hole they make is bigger than the head of the screw and it will sink if you don't stop it.

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

π© M6 1.0 Stainless Steel Flanged Hexagon Flange
8 Review

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

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