六角袋帽 (Acorn 螺帽)
BN 149
DIN 1587
~UNI 5721
| Material | 
            Material
            Steel
 | 
| Property class | 
            Property class
            6
 | 
| Surface | 
            Surface
            plain
 | 
All features
M10; M12: wrench size according to ISO on request
Standard
                        DIN 1587
~UNI 5721
                    Features
| Material | 
            Material
            Steel
 | 
| Property class | 
            Property class
            6
 | 
| Surface | 
            Surface
            plain
 | 
BN 150 - DIN 1587
Hex domed cap nuts (Acorn nuts) - Steel - 6 - zinc plated blue
BN 151 - DIN 1587
Hex domed cap nuts (Acorn nuts) - Steel - 6 - chromium plated polished
BN 1721 - DIN 1587
Domed hex cap nuts (Acorn nuts) - Stainless steel - A4
BN 635 - DIN 1587
Domed hex cap nuts (Acorn nuts) - Stainless steel - A2