Heyco 2643 DP 500 Dome Plug 12.7mm - Black - Pack of 25

Optimas Dome Plugs - Optimas 2643, Ideal for covering unwanted openings, these convex, matt finish plugs from Optimas have a head that tapers to a thin edge presenting an excellent appearance. Heyco 2643 DP 500 Dome Plug 12.7mm - Black - Pack of 25

Price: 3.29 from Rapid Online Rapid Electronics Ltd.