Dry wall , self drilling screws
Made in Taiwan
- Drywall Screw
Size : 3.5 x 25 - 3.5 x 35
Specifications
Head | Bugle head , wafer head |
Recess | Phillips |
Thread type | Fire thread , coarse thread - low thread |
Point type | Sharp point , self drilling point |
Material | Carbon steal |
Case hardness | Steel - rock/well c44 min |
Finish | Zinc plated , Black posphate |
Self Drilling Screw :
Specifications :
Standard | DIN7504 (K , L , N , P . Q ) / ASME B18.6.4 & SAE J78 |
Head | Hex head , hex flange head , pan head , pan farming head , flat head , truss head wafer head , oval head |
Recess | Phillips , pozi , slotted , trox , hex undercut , square |
Thread type | Fire thread , coarse thread - low thread |
Thread Point type | Type BSD , type CSD , spade – shaped point, high – low thread |
Material | Carbon steel , stainless steal |
Case hardness | Steel / Rockwell C52-58 |
Core hardware | Steel / rockwall (32 – 40 ) |
Finish | Zinc plated 3-5 um / of 5-8 um |