M4 phillips head machine screw with round (or pan) head x 30mm long zinc plated
- Manufacturer: Various
- Product ID: Various
Used to provide a more interesting bolt head for external parts
Supplier Links
https://www.ebay.co.uk/itm/252499953593
Indicative Pricing With Allowance for P&P
These are best bought in packs of at least 10. You'll use a handful of these in a full cockpit.
£0.20
Substitutions
Allen key head looks good too.