Slotted Nuts
- ASME-ANSI B18.2.2 Heavy Hexagon Slotted Nuts
- ASME-ANSI B18.2.2 Hexagon Slotted Nuts
- ASME-ANSI B18.2.2 Hexagon Thick Slotted Nuts
- ASME-ANSI B18.2.4.3 Metric Slotted Hexagon Nuts
- BS 1768 Preision US Hexagon Slotted Thin Nuts
- BS 1768 Unified Hexagon Slotted Nuts
- BS 1769 Hexagon Slotted Nuts
- BS 1769 Unified Hexagon Slotted Nuts Heavy Series
- BS 3692 Metric Hexagon Slotted Nuts
- BS 7764 Metric Hexagon Slotted Nuts and Castle Nuts
- DIN 935-1 Hexagon Slotted Nuts and Castle Nuts
- DIN 935-3 Hexagon Slotted Nuts
- DIN 937 Hexagon Thin Castle Nuts
- DIN 979 Hexagon Thin Slotted Nuts and Castle Nuts
- GOST 2528 Hexagon Slotted Nuts with Reduced Across Flats
- GOST 5919 Hexagon Thin Slotted and Castle Nuts
- GOST 5932 Hexagon Slotted and Castle Nuts
- GOST 5933 Hexagon Thin Slotted and Castle Nuts
- GOST 5935 Hexagon Thin Slotted Nuts with Reduced Across Flats
- JIS B1170 Hexagon Slotted and Castle Nuts
- KS B1015 Hexagon Slotted and Castle Nuts
- NF E27-414 Hexagon Slotted Nuts
- UNI 5593 Slotted and Castle Hexagon Nuts
- UNI 5594 Slotted and Castle Low Hexagon Nuts
- UNI 5595 Slotted and Castle Hexagon Nuts