Countersunk timber screw, zinc-plated, TX20, 4.0×70 mm – partially threaded – pack of 500
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Zinc-plated countersunk timber screw, TX20, 4.0×70 mm. Low-carbon steel with an electroplated zinc coating. Partial thread 35 mm long, head diameter 7.5–8.0 mm. For wood in dry indoor environments. Pack of 500.
Product code: 003-184
Product features
[PIM] Wkręty #80
- Material Steel
- Diameter 4
- Length [mm] 70
- Thread partial thread
- Drive TX20
- Coating Zinc plated
- Quantity per pack [pcs] 500
- Head type countersunk
Description
Countersunk timber screw, zinc-plated, TX20, 4.0×70 mm – partially threaded – pack of 500
The countersunk timber screw is a structural fastener for wood, designed for carpentry and joinery. The countersunk head sits flush with the surface of the wood, while the Torx TX20 drive provides a secure grip on the bit during installation.
The screw is made from low-carbon steel with an electroplated zinc coating that protects the surface against corrosion. The 4.0×70 mm size with a partial thread is a common choice for joining timber components: the smooth part of the shank near the head sits within the component being fastened.
The product is sold in a pack of 500 – one shop listing represents the whole pack, and the screws are supplied in a cardboard box.
Applications and selection
- Joining structural timber components, e.g. roof structures, frames and substructures
- Carpentry and joinery work requiring a head flush with the wood surface
- Installation using a Torx TX20 bit in a power screwdriver
- Use in dry indoor environments and structures sheltered from moisture
Electroplated zinc-coated steel is commonly used for fasteners in dry conditions. Countersunk timber screws should be selected in a length suited to the thickness of the components being joined, while the Torx drive reduces the risk of the bit slipping during installation.
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