Metal-Well™_Self-Drilling-Screw

Crest-Fixing Medium-Duty Roofing Screw_YZ-FT

Hex Head Partial Thread #3 Point Yellow Zinc Plated Self-Drilling Fasteners. Suitable for Internal Medium Duty Steel-To-Steel applications, such as Indoor Side-Laps Roofing Decks / Metal Sheets To Steel Frames. The Partial-Thread Design is great for residential steel frame construction with Heat-Installation Foam or Fireproof Cotton within the layers. The smooth shank will prevent any tangle of the inner material. Yellow Zinc Plating is ideal for internal installation or external environments with neutral surroundings like Mild-Urban and Rural areas.


SPECIFICATION
MATERIAL  Carbon Steel C1022
HEAD  Indent Hex Flange Head (Undercut)
RECESS  Head Mark "MW"
THREAD  Partial Fine Thread (Type CSD)
POINT  No. 3 Small-Lightning Point
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FINISH  Yellow Zinc Plated
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WASHER  TPV / EPDM Washer
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SIZE  #12 (≒ M5.5mm)
LENGTH  75mm, 90mm, 100mm 
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DRILLING  Steel Thickness 3.0mm ~ 4.5mm 
ADAPTER  MW Magnetic Hex Socket (5/16")