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What is "Double Countersunk"

  • 01-03-2016 12:34pm
    #1
    Seve OB
    Registered Users, Registered Users 2 Posts: 16,118 ✭✭✭✭


    So I know what countersunk screws are. But just came across double countersunk screws. Done a bit of googling but can't seem to find anywhere explaining the difference between them.

    So any of you guys know what the difference is and what the double means?


Comments

  • #2
    Gen.Zhukov
    Registered Users, Registered Users 2 Posts: 2,092 ✭✭✭Gen.Zhukov


    From what I can make out, it looks like this...

    There is the parallel of the screw itself. Leading up to the head there is a tiny bit of countersunk head at one angle which then leads into the main countersunk of the head at a bigger angle.

    Seems the advantage is they create their own countersink.


  • #3
    cheif kaiser
    Registered Users, Registered Users 2 Posts: 632 ✭✭✭cheif kaiser


    0042t_pozidrive_countersunk_head_twin_thread_woodscrew_zinc_and_clear.jpg


  • #4
    Bonzo Delaney
    Registered Users, Registered Users 2 Posts: 1,577 ✭✭✭Bonzo Delaney


    1.618 wrote: »
    From what I can make out, it looks like this...

    There is the parallel of the screw itself. Leading up to the head there is a tiny bit of countersunk head at one angle which then leads into the main countersunk of the head at a bigger angle.

    Seems the advantage is they create their own countersink.

    Everyday's a school day around here


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