DIN 7991 screws, also known as socket screws, are designed for fastenings where a flush finish is required. Their conical head allows the screw to lie completely flush with the surface, avoiding protrusions and ensuring a clean, secure and aesthetic joint.
This type of screw is particularly useful in mechanical assemblies where there is movement of parts or contact with other surfaces, as it reduces mechanical interference and improves operational safety. Its Allen key drive allows high torque to be applied in confined spaces.
DIN 7991 screws: high-performance countersunk fasteners
At CHAVESBAO, we supply DIN 7991 screws manufactured to the most demanding standards, available in high-strength steel (8.8, 10.9) and A2 and A4 stainless steel, allowing them to be used in general machinery as well as in corrosive or outdoor environments.
Their countersunk design facilitates flush installation in metal parts, panels, structures or fittings where the surface finish is important or snagging is to be avoided. They are available with different surface finishes such as zinc-plated, black or hot-dip galvanised, which increases their corrosion resistance and durability in demanding conditions.
