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Self Drilling Screws
Self Drilling Screws Self Tapping Screws Stainless Steel Screws
Self Drilling Screw With EPDM Bonded Washer
Self Drilling Screw With EPDM Bonded Washer
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Hex Head Self Drilling Screw  With EPDM Bonded Washer


Material:Carbon Steel,Stainless Steel

Finish:Ruspert Coating,Zinc Plated,Dacromet,Mechanical coating



TPI Length:14,24



Maximum Drilling Capacity:6mm,12mm

Certification:SGS reoprt sst1500hrs+Kesternich 15cycles

Application:Fixing steel sheets onto steel substrates


Our products range covered crest fixing and vally fixing,for steel to steel and steel to timber fastening,we offer the total solution of fasteners.

Ruspert Coating:Zinc-Tin Alloy Coating


Coating Process:Making Excellent Adhesion of Mechanical Coating

HardwareJet mechanical galvanized screws coating is produced according to Australia Standard for self-drilling screw corrosion resistant requirement AS-3566.2-2002 with metallurgical profile micro-density grade 8 require-ments, to ensure excellent coating adhesion. Firstly, the screws are coated by using a 360 degree rotation plating process to mechanically weld zinc and tin ally powder to the surface. This process helps zine plating coat evenly onto screw threads which helps to form the first layer of protection from corrosion. Screws are then soaked in liquid Ruspert and heated for solidification which form a second layer coating that could generates lubrication during drilling application and help reduce friction that could destruction the inner protection layer of zinc plating.Process under room temperature eliminates the re-tempering or softening. NON-Exposion to acid during production prevents screw from hydrogen embrittlement.


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. 


The Bonded EPDM Washer:


The Socket to Use:5/16",3/8"


More specifications,please feel free to contact us.