Heyco 2603 DP 250 Dome Plug 6.4mm - Black - Pack of 25

Optimas Dome Plugs - Optimas 2603, 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 2603 DP 250 Dome Plug 6.4mm - Black - Pack of 25

Price: 3.02 from Rapid Online Rapid Electronics Ltd.