T-head bolts with square neck
BN 256
DIN 186 A
~ČSN 021343
| Thread | 
            Thread
            partially threaded
 | 
| Material | 
            Material
            Steel
 | 
| Property class | 
            Property class
            3.6 / 4.6 (At manufacturer's option)
 | 
| Surface | 
            Surface
            zinc plated blue
 | 
All features
Standard
                        DIN 186 A
~ČSN 021343
                    Additional information
DIN 188 T-head bolts with nose & DIN 261 T-head bolts with internal & external thread available upon request
Features
| Thread | 
            Thread
            partially threaded
 | 
| Material | 
            Material
            Steel
 | 
| Property class | 
            Property class
            3.6 / 4.6 (At manufacturer's option)
 | 
| Surface | 
            Surface
            zinc plated blue
 |