The TIMco Twin Thread Zinc Countersunk Woodscrew is designed for general use in softwood and various types of hardwood. This traditional twin-thread screw features a single lead start for fast installation and is effective in soft timber applications or masonry when used with a plastic plug. It is partially threaded from 1 1/4 inches and above, and includes a double countersunk head to reduce the likelihood of head shear and aid countersinking. Made from C10-18 steel, it provides consistent quality with zinc plating and hardened characteristics to resist torque and improve pull-out resistance. The screw is manufactured to BS 1210 standards and is compatible with TIMco and other leading plastic expansion plugs, offering versatile use across woodworking and light masonry tasks.
Specifications
- Size: 8 x 1 1/4 inches
- Material: C10-18 steel
- Plating: Zinc plated 3–5 microns
- Surface hardness: up to 750 HV
- Core hardness: up to 450 HV
- Thread: 60° twin-threads with parallel shank
Usage
Ideal for use in softwood and various hardwoods. Can be used in masonry applications with a plastic plug. Features a 25° sharp point and single lead start for fast installation, with partial threading from 1 1/4 inches upward and a double countersunk head to reduce head shear and aid countersinking.
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