Hex socket flat countersunk head screws fully threaded
BN 1422
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(Standard withdrawn)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 flake coated ISO 10683/flZnL/nc/480h/C (µ=0.12-0.18)
|
All features
Standard
DIN 7991 (Standard withdrawn)
~ISO 10642
~UNI 5933
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.
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 flake coated ISO 10683/flZnL/nc/480h/C (µ=0.12-0.18)
|
Assembly notice
The designation system according to ISO 10683 defines the expected corrosion protection and the friction coefficient range. Further performance specifications of a coating brand used are not specified. Additional thread coating may limit the ability to install zinc flake coated screws < M5 by hand.
BN 20 - DIN 7991 - ~ISO 10642
Hex socket flat countersunk head screws fully threaded - Steel - 010.9 / 10.9 (The head marking is determining) - black
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)