Boxed Countersunk Head Tapping Screws Hard Black Cross Ash Phosphorus Drywall Screw
|Measurement System||Metric||Head Style||Flat, Oval|
|Port||Shanghai Or Ningbo|
Boxed Countersunk Head Tapping Screws,
Hard Black Countersunk Head Tapping Screws,
Cross Ash Phosphorus Drywall Screw
Flat Head Self-tapping Screws Hard Black Cross Ash Phosphorus Drywall Screw Boxed Countersunk Head Tapping Screws
Factory Supplier Flat Bugle Head Drywall Screws Fine Coarse Thread Self Drilling Wood Screw Black Phosphate DIN 18182
Phillips No.2 recess for a positive drive
Bugle head to reduce likelihood of damaging the board surface
25° super sharp point for ease of penetration
60° twin-thread offers excellent pull-out values and insertion speed
Item: Drywall Screws
Thread Ø (mm):3.5/3.9/4.2/4.8
Finish: Black Phosphate/ Gray Phosphate / Galvanized White or Yellow/ Nickle / Dacromet (Yellow Zinc/ White Zinc/Ruspert)
Drywall Screws Head Type:Bugle Head
Thread Type:Coarse Thread /Fine Thread
Point Type25° Sharp
Corrosion Rating (1-5)1 - Clean, dry & low humidity environments
Material: 1022ACarbon Steel
The company's quality management system: ISO9001:2005 certification, ROHS certification, SGS certification,CE certification, etc.
The quality control is strictly performed from buying raw materials in warehouse to different machining procession and to final packing.We have Magnetic Powder Detector, Material Testing Machine, Metallographic Microscope, such testing instruments, guarantee product high quality and beautiful appearance.
First, we have our own High-precision Digital Machining center for mould making in special Mould Workshop, excellent mould make product beautiful appearance and its size accurately.
The second, we adopt blasting procession, removing Oxidation surface, make the surface to be bright and clean and uniform and beautiful.