Single thread screws are the most common form and have a single continuous thread running along the body of the screw. Twin thread screws have two intertwined threads.

What Are The Uses of Single Thread Screws?

Single thread screws are the most common form and hence are used in a wide variety of situations for an array of different applications. Typically, single thread screws are preferred for softwood, and chipboard along with being the primary option for the majority of general tasks where a specialist screw isn’t required.

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What Are The Uses of Twin Thread Screws?

Twin thread (TT) or double thread screws are primarily used when working with hardwood such as mahogany and oak. Due to having two threads on the screw, these can be removed or fitted twice as quickly as single thread screws as well as holding more securely.

View our selection of twin thread screws. 

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