Acorn Nuts
- DIN 319 Ball Knobs
- DIN 917 Hexagon Cap Nuts
- DIN 986 Prevailing Torque Type Hexagon Domed Cap Nuts
- DIN 1587 Hexagon Domed Cap Nuts
- JIS B1181 Acorn Nuts Combined Type
- JIS B1181 Small Hexagon Acorn Nuts
- JIS B1183 Acorn Hexagon Nuts
- JIS B1183 Small Acorn Hexagon Nuts
- JIS B1183 Small Acorn Nuts
- KS B1026 Hexagon Acorn Nuts
- UNI 5721 Domed Cap Nuts