Vis à tête fraisée à six pans creux, entièrement filetées
BN 21
DIN 7991
(Standard withdrawn)
~ISO 10642
~UNI 5933
| Headform |
Headform
Countersunk head 90°
|
| Drive |
Drive
Hexagon socket
|
| Thread |
Thread
fully threaded
|
| Material |
Material
Steel
|
| Property class |
Property class
010.9 / 10.9 (The head marking is determining)
|
| Surface |
Surface
zinc plated blue
|
All features
All prices are based on the minimum order quantity. If you have any questions or special requirement, please contact Bossard.
Standard
Additional information
Fasteners to the given specification have a reduced loadability due to the head geometry according to ISO 898-1.
The general change-over from DIN 7991 to ISO 10642 in the practice requires a verification of the application.
Features
| Headform |
Headform
Countersunk head 90°
|
| Drive |
Drive
Hexagon socket
|
| Thread |
Thread
fully threaded
|
| Material |
Material
Steel
|
| Property class |
Property class
010.9 / 10.9 (The head marking is determining)
|
| Surface |
Surface
zinc plated blue
|
Warnings
ISO 4042
Quenched and tempered fasteners ≥ 360 HV and tempered case-hardened fasteners with electroplated coatings: Susceptible to hydrogen embrittlement!
Further notice to residual risks can be found on our web page: Notes on use
BN 1422 - DIN 7991 - ~ISO 10642
Hex socket flat countersunk head screws fully threaded - Steel - 010.9 / 10.9 (The head marking is determining) - Zinc flake coated ISO 10683/flZnL/nc/480h/C (µ=0.12-0.18)
BN 2102 - ISO 10642 - ~DIN 7991
Hex socket flat countersunk head screws fully threaded - Steel - 010.9 / 10.9 (The head marking is determining) - zinc plated blue
BN 2103 - ISO 10642 - ~DIN 7991
Hex socket flat countersunk head screws fully threaded - Steel - 010.9 / 10.9 (The head marking is determining) - Zinc flake coated ISO 10683/flZnL/nc/480h/C (µ=0.12-0.18)