Hexagon socket head countersunk screws have a hexagonal drive in the head. The fastener head is designed to “sink” into a counter-sunk tapped hole in the material to give a flat profile.
Hexagon socket head countersunk screws ensure a secure, flush connection and are typically used in applications with an aesthetic consideration or delicate precision equipment. As the head of the countersunk screw is flush with the surface, it ensures a sleek, snag-free finish.
Generic A4 counter-sunk fasteners can be at greater risk of crevice corrosion and staining around the counter-sunk hole. BUMAX fasteners with their higher corrosion resistance offer a more robust solution, helping to maintain the aesthetic look of an assembly with minimal maintenance.
Introducing the Torx® drive system
BUMAX is an authorized manufacturer of the Torx® drive system, a registered product of Camcar Innovations®. BUMAX fasteners are produced with genuine Torx® and Torx Plus® drive systems, ensuring the highest fastener performance and quality.
Torx® drive systems provide greater tool and lobe engagement depth while minimizing tool slippage. Advantages include:
- Optimum torque transmission to support accurate clamp load.
- No cam-out forces pushing the driver up.
- Minimal end load is required since cam-out is virtually eliminated.
- High torque transfer and reduced radial forces resulting in longer tool life.
- Drive force spread over a broader surface.
Our offering
Our standard offering of stainless steel hexagon socket head countersunk screws in ISO 10642 ranges from M3 to M16 and lengths from 6 mm to 100 mm. Countersunk screws are also available as a Torx® drive version to ISO 14581. Contact us to discuss your specific product requirements.
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Hexagon socket head countersunk screw
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