GB/T 802.3-2009
Acorn hexagon nuts with flange—Welding type
GB/T 802.4-2009
Hexagon cap nuts — Welding type
GB/T 802.5-2009
Prevailing torque type hexagon acorn nuts with non-metallic insert - Welding type
GB/T 923-2009
Acorn hexagon nuts
GB/T 802.1-2008
Acorn nuts,assembling type
GB/T 802-1988
Acorn nuts
DIN 917-1987
Hexagon cap nuts,low type(d≤10mm)
DIN 917-1987
Hexagon cap nuts,low type (d≥12mm)
DIN 986-1987
Prevailing torque type hexagon domed cap nuts with nonmetallic insert
DIN 986-1987
Prevailing torque type hexagon domed cap nuts with nonmetallic insert(big on edge)
DIN 1587-1987
Hexagon domed cap nuts-Type A
DIN 1587-1987
Large hexagon domed cap nuts-Type A
DIN 1587-1987
Hexagon domed cap nuts-Type B
DIN 1587-1987
Large hexagon domed cap nuts-Type B
UNI 5721
Domed cap nuts
Q 394B-1999
Acorn nuts
JIS B1183-2001
Type 1 Hexagon domed cap nuts
JIS B1183-2001
Type 2 Hexagon domed cap nuts
JIS B1183-2001
Type 3 Hexagon domed cap nuts
JIS B1183-2001
Type 1 Small hexagon domed cap nuts