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Twinfast woodscrews are rolled to produce a double thread with a parallel shank giving improved driving and expansion characteristics. The screws are then hardened to provide a combination of strength and reliability. |
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The main advantage of the yellow chipboard screw is its single,finely rolled thread which allows it to cut deeper into the material, providing greater holding strength. Hardened yellow zinc plated and waxed, the chipboard screw is designed for use in a variety of different materials such as hardwood, chipboard and MDF without the need for pre-drilling. The deep x recess head is ideally suitable for power driving. |
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