Chinese wholesale Flat Head Self Drilling Screws - CSK Self-Drilling Screws – DaHe

High performance countersunk head screws from DaHe metal self drilling tech screw range. Features include low profile flush fitting head for an unobtrusive finish and a hardened shank and body for high strength fastening of pre-drilled and countersunk components in steel up to 4mm thick, 24TPI.
Phillips no 2 drive and class 3 galvanised for maximum corrosion protection and external use, free driver supplied in all packs and trade boxes.

Application

1：Suitable for thin plate installation, doors and Windows, furniture and other fixed installation
2：Installation of household appliances
3：Fixation and installation of metal curtain wall
4：wood mansard to steel frames
5:plywood fascial to steel frames
6:Plywood roof and floor sheet to sheet frames
DaHe company provide our customers high quality of Countersunk Head Self Drilling Screw, which is designed employing exceptional quality material at progressive infrastructure facility.

Features

☆ Self drilling hardened points for fast insertion and self centred start.
☆ Parallel thread providing a constant and even clamping load.
☆ Heavy duty high strength shanks designed for use with powerdrivers.
☆ Thread cutting profile with a coarse tapping thread for rapid installation.
☆ Large bearing surface ideal for plywood
☆ Flat head desing countersunks and seats flush in wood
☆ Aluminium/steel washer
☆ Special winged fasteners ream a hole in wood preventing thread engagement during drilling
☆ Sold in convenient Grab Packs or heavily discounted Trade Boxes for volume users.
☆ Lustrate hydrogen after galvanizing to avoid hydrogen embrittlement

Specification

NOTE:
1: Drill Capacity: 8g (0.75-2.5mm of steel), 10g (0.75-3.5mm of steel)
2:Driver Type: Philips P2
3:Installation Speed:  2300-2500 RPM Max Drill Speed