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Self Drilling Screws
Self Drilling Screws Self Tapping Screws Stainless Steel Screws
Hex Head Self Drilling Screw  With EPDM Washer
Hex Head Self Drilling Screw With EPDM Washer
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Self Drilling Screw:drill their own hole and tap their own thread


Material:SAE 1022 Carbon Steel,Stainless Steel

Head Style:Hexagon Head



TPI(Threads Per Inch):14,24

Thread:Coarse thread,fine thread



Maximum Drilling Capacity:6mm,12mm

Certification:SGS reoprt sst1500hrs+Kesternich 15cycles

Finish:Zinc plate,Dacromet,Ruspert,Mechanical coating

Application:Fixing steel sheets onto steel substrates,Metal to metal fixing

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We have full product range to cover the vally fixing,crest fixing and stitching fasteners.

Coating Process:Making Excellent Adhesion of Mechanical Coating


Hardware Jet mechanical galvanized screw coating is produced according to Astralia Standard for self drilling screw corrosion resistance requiement AS-3566,the screws are coated by using a 360 degree rotationg plating process to mechanically weld zinc and tin ally powder to the surface.This process helps zinc plating coat evenly on to screw threads which helps to form the first layer of protection from corrosion.Then screws are soaked in liquid Ruspert and heated for solidification which form a second layer coating that could generates lubrication during drilling application help reduce friction that could destruction the inner protection layer of zinc plating.


The total process under room temperature eliminates the re-tempering or softening.Non Exposion to acid during production prevents screw from hydrogen embritlement.

Head Color Painting:Offer the same color with appearance of roofing pannel

Screw head colour painting adopts the fluorocarbon metal paint,the finished coating has stable performance,excellent weather resistance and UV resistance,long life,strong adhesion ,impact resistance up to 50KG/CM2,the color can be customized as customer's requirment,you just need to provide us the color code or send us the color samples. 


Adapter to use:magnetic hex socket 5/16',3/8'


More specifications,please feel free to contact us.