daveo Posted August 15, 2016 Report Share Posted August 15, 2016 My Catek OS1 Short bindings' kingpins have both been rounded over time. I don't currently have them with me so I can't take them down to the local nuts n' bolts to get new ones. Does anyone know the exact specs of the Catek OS1 Kingpins- like the thread type and bolt length? SB Quote Link to comment Share on other sites More sharing options...
teach Posted September 7, 2016 Report Share Posted September 7, 2016 There are two lengths of kingpin, if I recall correctly, and older OS1s had a beefier kingpin, same as WCs, 12 mm. Soon they switched to 10 mm. I believe the thread pitch is standard metric "coarse thread": M10 x 1.5 and M12 x 1.75. The short are 20 mm and long are 25 mm. I used 25 mm M10 x 1.5 stainless socket head cap screw as a replacement last season, if I'm not mistaken. I'll try to find it and see if that's for real... Quote Link to comment Share on other sites More sharing options...
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