Drywall Screw
Fast fixing of plasterboard
Case hardened, Piercing Point Screws For Fixing To Light Steel or Wood Studs Without Pre-Drilling Zinc, Yellow Zinc, Black & Grey Phosphated Available.bulk or small box packing.corase or fine thread.
Drill bits
Wood flat bits
Chipboard ScrewsHeat Treated Case Hardened to Prevent Snapping 40 Degree Thread Angle, 25 Degree Point Angle Zinc, Yellow Zinc, Brass or Black Oxide available
PATTA self-drilling Chipboard screws have a coarse thread and fine shank to provide maximum grip and minimum strip out into chipboard, MDF board and soft timbers. The head has ribs molded around the countersunk head which help remove the chipboard particles when countersinking.
How to Use
1. Measure the total thickness of the materials to be fastened.
2. Choose a screw long enough to provide approx. 20mm of thread embedment into the chipboard or wood being fastened to.
3. Fit a #2 Phillips drive bit to a power screwdriver set to low speed, approx. 1000rpm.
normal size M3.0 M3.5 M4.0 M4.5 M5.0 M6.0
thread diameter min. 2.8 3.3 3.75 4.25 4.7 5.7
max. 3 3.5 4 4.5 5 6
head diameter min.. 5.6 6.6 7.5 8.5 9.5 11.5
max. 6 7 8 9 10 12
pitch 1.35 1.6 1.8 2 2.2 2.6
head height max. 1.9 2.1 2.5 2.7 3 3.6
shank max. 1.6 1.8 2 2.2 2.5 3
recess no. 1 2 2 2 2 3
recess depth min. 1.6 1.6 2.05 2.6 3 3
max. 2 2.1 2.5 3.1 3.45 3.45
Case hardened, Piercing Point Screws For Fixing To Light Steel or Wood Studs Without
Pre-Drilling Zinc, Yellow Zinc, Black & Grey Phosphated Available
normal size #6 #7 #8 #10
thread diameter min. 3.4 3.75 4.05 4.7
max. 3.6 4 4.3 4.95
head diameter min. 8 8 8 8.8
max. 8.4 8.4 8.4 9.2
head height max. 0.8 0.8 0.8 0.8
radius min. 4 4 4 4
Drilling screw
Hex washer head
Sheet metal screw with a hex head and a washer attached.
* Zinc plated steel
* Steel is zinc plated for moderate protection against rust.
* Stainless steel 18-8
* Stainless steel 18-8 is an alloy of steel with high corrosion resistance. Stainless has become the material of choice for exterior and most marine applications.
