Countersunk head self-tapping screws with 6-lobe drive feature a self-tapping thread extended along the entire shank, designed to allow direct fastening into sheet metal and metal laminates through simple drilling, without the need for thread cutting or prior tapping. They are available with point and without point, depending on specific application requirements.
To ensure a safe and stable fastening, it is essential to respect the correct hole diameter, avoiding undersized holes which do not improve tightening performance and may compromise assembly quality.
The countersunk head with 6-lobe drive ensures perfectly flush fastening with the surface of the material, eliminating protrusions and providing a uniform and professional appearance.
The 6-lobe drive, compliant with ISO 14586-C, allows higher tightening torque transmission compared to traditional drives, reducing the risk of bit cam-out and improving installation accuracy.
This drive is particularly suitable for screws with a diameter equal to or greater than 4 mm; for smaller diameters its use is less recommended, since the reduced drive depth may cause insertion difficulties and risk of bit slippage during installation if the screw is not perfectly aligned.
ISO 14586 / C
Self-tapping countersunk head screws with 6-lobe drive are available in different material options, including:
The variety of materials ensures high mechanical strength and excellent corrosion protection.
Screw length is measured from the tip to the underside of the head.
They are widely used in industrial applications for fastening sheet metal, assembling electronic components and in metal fabrication, where reliability, fast installation, tightening accuracy and flush surface finishing are required.
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