Product introduction：
|
project |
instructions |
|
define |
Combination screw is a screw with a ball pad with a flat pad or only with a gasket and through the thread rolling, combination of fastening assembly together. Divided into two assembly and three assembly. |
|
specifications |
Cross trough pan head assembly, philips countersunk head/oval head assembly, hex head assembly, cross trough recesses hex head assembly |
|
standard |
GB9074.（1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23） |
|
material |
Carbon steel, stainless steel, copper, alloy, etc |
|
level |
4.8 level，8.8 level，10.9 level，12.9 level |
|
Surface treatment |
Black zinc plating, oxidation, cleaning and polishing, nickel and non-ferrous metals, etc | |
CHINESE
ENGLISH
