The TIMco Twin Thread Zinc Countersunk Woodscrew is a traditional twin-thread fastener designed for general use in softwood and various hardwoods. It features a single lead start for fast installation and is effective in soft timber applications or masonry when used with a plastic plug. Key details include its size (8 x 2 1/4 inches), C10-18 steel composition, zinc plating (3–5 microns), and surface hardness up to 750 HV with core hardness up to 450 HV. The screw is partially threaded from 1 1/4 inches, double countersunk to reduce head shear and aid countersinking, and provides faster insertion and greater pull-out resistance thanks to its 60° twin-threads with a parallel shank. Its 25° sharp point and single lead contribute to a fast start and improved thread acceptance, and it is designed and manufactured to BS 1210 standards. Suitable for TIMco and other leading plastic expansion plugs, this traditional twin-thread wood screw is well-suited for soft timber applications or masonry with a plastic plug.
Features
- Twin-thread design for strong grip
- Single lead start for fast installation
- Partially threaded from 1 1/4 inches
- Double countersunk to reduce head shear
- 60° twin-threads with parallel shank
- Designed to BS 1210 standards
Technical specifications
Price History
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