GB /T 21934 Earth-Moving Machinery - Plough Bolt
GB 11 Countersunk Head Nib Bolts
GB 10 Countersunk Head Square Neck Bolts
GB /T 10 Flat Countersunk Head Square Neck Bolts
EN 14399-7 High Strength Structural Bolting Assemblies for Preloading
DIN 25195 Countersunk Bolts with Double Nip for Railway Vehicles-Class C
DIN 11014 Countersunk Head Double Nibs Bolts for Agricultural Machinery
DIN 7969 Slotted Countersunk Head Screws for Structural Steel
DIN 792 Cylindrical Countersunk Head Nib Bolt
DIN 608 Flat Countersunk Head Square Neck Bolts with Short Square
