DS EN 3820:2006 Aerospace Series - Metric Bolts, Normal Hexagon Head, Coarse Tolerance Normal Shank, Short Thread, In Titanium Alloy, Anodized, Mos[2] Lubricated - Classification: 1100 Mpa (At Ambient Temperature)/315 Degree C Defines the characteristics of bolts, normal hexagonal head, coarse tolerance normal shank, short thread, in titanium alloy, anodized, MoS[2] lubricated.