Thread Type: metric       Material: SS304 stainless steel       Threading: fully threaded       Fastener screw type: cross countersunk head tapping self drilling screw      
dk | k | base material thickness | load(kg) | Drill in speed(s) | rotation rate | |
M3.9 | 7.25 | 2.75 | 2~3 | 14~16 | 3.5~4.5 | 1 800~2500 |
M4.2 | 7.9 | 3.15 | 3~4 | 25~ 30 | 4.5~6 | 1 800~2500 |
M4.8 | 9.3 | 4.15 | 4~6 | 28~35 | 7~8 | 1 800~2500 |
M5.5 | 10.8 | 5.31 | 4~8 | 35~40 | 11~12 | 1 800~2500 |