Product Description Accessories for chainrings: chainring bolts by Wolf Tooth Components This chainring bolt set, optimised for single chainrings, has a 4 mm hex on the bolt and a 6 mm hex on the nut. A wrench is therefore not necessary. The bolts are 6 mm long and thus fit all single chainrings that do not have threaded holes. Technical Information:Material:aluminium (7075-T6)Size:M8Length:6 mmTool Drive:4 mm hexagon socket (screw), 6 mm hexagon socket (nut)Compatibility:all Wolf Tooth 5-arm chainrings with threadless bolts (110 BCD, 130 BCD)single 5-arm chainrings of other brandsFeatures:6 - 7 Nm tightening torque, grease thread lightlyMade in the USAColour Index:nickel:shiny silverManufacturer Numbers:black:5CBCN06BLKsilver:5CBCN06SILred:5CBCN06REDblue:5CBCN06BLUgreen:5CBCN06GRNnickel:5CBCN06NIorange:5CBCN06ORGpurple:5CBCN06PRPgold:5CBCN06GLDgrey:5CBCN06GRYContents:5 x Wolf Tooth Components 6 mm chainring bolts Weight: black: 10 g Manufacturer: Wolf Tooth Components 6400 W 105th St Bloomington MN 55438 USA info@wolftoothcomponents.com Distributor: Cosmic Sports GmbH Leyher Straße 47 90763 Fürth Germany info@cosmicsports.de