GRC Screw 4mm
This screw is made for the application of GRC board 4 mm. This screw is equipped by a thinner head and single thread, so it’s very suitable for GRC board 4 mm application.
GRC Screw ≥ 5 – 8 mm
This screws is applied on GRC board 5 mm for 8 mm. And not recommended for the board which has thickness 4 mm. This GRC Screw has a head equipped with fins and double thread, so it’s easier to be countersunk when it’s applied.
GRC Screw 9 – 15 mm
This screw is applied on all product who has thickness 9 – 15 mm
GRC Screw ≥15 – 20 mm
This screw is applied on all product who has thickness >15 – 20 mm