Pro Grade M4 Flat Head Machine Screws Black 168 Piece Heavy Duty Kit Made For Electrical Box Switch Outlets Faceplates Countersunk Flush Fit Anti Strip Phillips Drive No Nonsense Straight Fix

Premium M4 Countersunk Machine Screws Bulk Pack Set
✔️ 168 piece black oxide machine screw set in organized case

This 168-piece hardware assortment features metric fasteners specifically sized for residential wiring tasks. Electricians and homeowners use these flush mount bolts to attach smart switches, power receptacles, and decorator plates straight onto junction boxes.

✅ Deep phillips drive prevents tool slip during installation
✅ Black oxide coating stops rust and wear on indoor projects
✅ Grid lock storage box keeps lengths sorted in your tool bag
✅ Countersunk heads sit perfectly flat against outlet covers

💡 Why pick countersunk machine screws for residential electrical setups?

This handy bunch gets your outlet gear mounted tight without sticking out.

- Flat head geometry locks flush against switch boxes for a pro look
- Carbon steel cores hold up to heavy torque when chasing loose wires
- Mixed length bins save trips to the hardware store down the road
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