Our round head wood screws feature a pozi drive which has been designed to ensure that the screwdriver will not slip under torque. This makes these woodscrews ideal for use with impact drivers and other power tools.
The round head is a domed raised head which has a flat, level underside to it. Round head fixings are actually designed for fixing against metal surfaces, but they are commonly used to fix to a variety of rigid surfaces. The most commonly used fixing in applications where a flush finish is not a necessity.
Twinthread woodscrews are a traditional woodscrew that gives rapid installation into softwoods. They are also an ideal choice for use with a plastic wall plug when fixing into masonry.
A twinthread screw has, as the name suggests, a pair of threads that run along the screw body. The pitch of a twinthread screw (the distance between the threads) is usually greater than that of a single thread screw. The result of this is that installation is faster with a twinthread screw.
Twinthread screws are easier to get started and are generally easier to drive into position than single thread screws.
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