self drilling screw Top-Flut, blue zinc plated, roller sorted 3.9x16 mm ( 2000 ST ) 16 mm
Product number: 3116100-3.9-16
metal tapping screw thread Ø 3.9 mm
drill tip at least 6 mm
countersunk head 90°, flat oval head from 25 mm onwards
head diameter depending on length:
Ø 7.4 mm (l = 16-22 mm)
Ø 7.1 mm (l = 25-45 mm)
cross recess PH2
for steel reinforcement up to 3.5 mm
roller sorted