... specification of M6X1 long type grease fitting is described as follows PROPERTY PROPERTY 1materialbrass2colourcoppery3typelong type 4length32mm5threadM6X16hex8mm7surfacezinc plated in order ... types and 1200 designs straight,angled-90degree,45degreehydraulic,button head and concave type.14 we offer both ... designed parts,according to your requirements.16 this type of grease zerk is popular to many kinds ...