Hex Washer Head Self Drilling
Hex Washer Head Self Drilling
Hex Washer Head Self Drilling Roofing Screw Thread size: #10, #12, #14 (M4.8, M5.5, M6.3 or particular M6.5) Length: 3/4" to 12" (19 to 300mm) Recess type: Hex; Slot+Hex; Head type: Indented hex washer Head (high head); Slotted Indented washer head; Thread type: BSD (general thread);CSD (fine thread) with 1 slot;double threads Point: Drill point length from #2~#5; Finish: Phosphate (grey or black); Zinc Plated (clear / white / yellow); Coating (Geomet, Dacrotized, Ruspert etc.); Drill capacity: Steel plate thickness 1.0mm to 10mm;
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