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|Material:||Carbon Steel||Property Class:||6.8|
|Head:||Flat||Specification:||3.5 To 4.8|
screws and fasteners,
Recess Bulge Head Drywall Screws Steel Black Phosphated for Chipboard
From 3.5 to 4.8 ( thread diameters ) Drywall Screw with Phillips recess and Bulge head , sharp point and coarse threads with excellent cutting and drilling performance . Drywall screw is also named as Gypsum board screws .
Material Code : ANSI 1018
Case Hardness : HV700
Core Hardness : HV400
Carburizing depth : min 0.08 mm
Finish : Phosphated
Drywall screws are made from carbon steel for the most applications and stainless steel is also available for special purposes , several different material models each kind as following .
Stainless steel : SUS 201 , SUS 304 ,SUS 316 , SUS 416 ,SUS 430 and SUS 420 .
Carbon steel : 1008 , 1010 , 1018 , 1022 , 1035
Phosphate finishing is the most popular for drywall screws on anti-corrosion , besides , more finishing options for special requests .
|Zinc||Various color can be choosed and perfect on anti-corrosion|
|Nickel||Make the surface of the screws more bright and hardened and the performance of screws will be improved|
|Polish||Improving the brightness of surface but is inferior is not as zinc in anti-corrosion|
|Tin||It is very perfect to be anti-rust , and widely used to components|
|Brass||Usually used with Nickel for more good anti-corrrosion.|
|Dacromet||Is used for screws with big sizes and can stop screws to be rusted long time even under bad surroundings .|
Drywall screws are used for building ,plastic board ,wooden pieces and plasterboard .
Our packages are assorted and strong , we can arrange special packages according to your requirements , all Packed in Seaworthy or airworthy for Export .
※ Top quality with cheap price
※ Strict dimensions control and high precision
※ All Screws are eco-friendly
※ Quick delivery
※ Perfect sales-after service
Contact Person: MR.LIN