Single 16mm flip lock screw and hand tighten nut for York Nordic poles. This is the flip lock found on York Nordic brand poles including our folding traveler series, as well as our 2 section poles with either the nordic grip or the trek/hike grip.
NOTE: our go pro camera poles have 3 flip locks all at the following sizes (14mm at bottom, 16mm in middle, and 18mm at top grip secion) so please contact us for that style of York Nordic pole.