Screw Stainless Hex Counter Sunk M6 16mm-

Stainless Steel Countersunk Hex Head screw. Suits the inset threads for on most surge sit on top kayaks and used to secure rod holders and deck fittings.

M6 diameter and 16 mm long

Known to suit the Surge brand it will also fit a number of other brands including Finn, Spirit, in2Kayaks an others.