Cross nut bolts & flat head screws
Precise furniture joints for professionals: cross nut bolts & flat head screws in many sizes, high fitting accuracy, accessories included.
Cross nut bolts & flat head screws for precise furniture joints
In this category you will find fasteners that are reliable, non-detachable and dimensionally accurate in furniture and interior design. They are suitable for visible and concealed connections, can be positioned neatly and can be combined with standard hardware systems - from carcasses and frames to modular solutions.
- Materials: Steel, galvanised or nickel-plated (also black coated)
- Thread sizes: M6 and M8, suitable for standard fittings
- Clean look: flat heads, concealed or discreet installation
- Removable: ideal for transport, servicing and conversion
- Compatibility: e.g. with flat connectors and PV/FF clamp systems
Flat-head screws - flush support, secure drive, many lengths
Flat-head screws are standard in furniture construction when a flush contact surface and a clean surface are required. The flat head (Ø 15 mm) distributes the forces over a large area, reduces the risk of pulling through and enables a smooth appearance - even with visible screw connections. The hexagon socket (SW 4) allows controlled, powerful screwing in without slipping, even in tight places. Technically, M6 and M8 as well as various lengths are available; the screws are made of steel and are nickel-plated or galvanised, optionally in a black-coated version for dark materials and fittings. Typical applications: Connection with flat connectors or direct screwing into pre-drilled elements for carcasses, shelving systems and customised furniture concepts.
Cross nut bolt - transverse threaded mount for resilient corner joints
Cross nut bolts (clamps) are inserted at right angles to the screw-in direction and, together with the corresponding screw, form a positive and non-positive connection. In Ø 10 mm with an M6 thread, they are suitable for compact constructions, in Ø 12 mm with an M8 thread for larger, heavily loaded racks and frames. The concealed installation ensures an unobtrusive appearance; the low installation depth and the centred thread support a backlash-free, non-detachable connection. Made of galvanised steel - durable and corrosion-resistant. Areas of application: Cross and end connections in carcase and frame construction, modular furniture construction, shop fitting and interior design. In PV/FF dowel systems, the bolt provides a precise threaded seat for the grub screw, which tightens the dowel in a centred position.
Compatibility & systems - how the components work together
Flat head screws (M6/M8) are compatible with standard flat connectors and metal brackets and can therefore be used universally in carcass construction. Cross nut bolts in Ø 10/M6 and Ø 12/M8 are matched to clamp connectors and complement the PV/FF systems in particular: The bolt is inserted crosswise, the grub screw tightens the dowel in a centred position - the result is a high contact pressure with a concealed appearance. The detachable design makes servicing and conversion easy; individual parts can be replaced as required.
Key technical data at a glance - selection by application
Flat-head screws: Head Ø 15 mm; thread M6/M8; lengths in several increments; drive hexagon socket SW 4; nickel-plated or galvanised steel, black-coated on request. Suitable for flat connectors, angles, direct screwing into pre-drilled elements.
Cross nut bolt: Ø 10 mm with M6 internal thread or Ø 12 mm with M8 internal thread; galvanised steel; concealed, transverse mounting; high tightening force, backlash-free fit; compatible with PV/FF clamp housings (e.g. Ø 15 mm) and panel thicknesses from approx. 19 mm (depending on system).
Practical questions - brief answers
What length should I choose for flat-head screws?
Adjust the length according to the material thickness, fitting thickness and desired screw-in depth. The aim is to achieve a fully load-bearing thread engagement length without pulling through the surface.
When do I use M6 and when M8?
M6 covers most standard applications on carcasses. M8 is recommended for larger cross-sections, higher loads or if an M8 thread is required by the system (e.g. Ø 12 clamps).
How do I prepare the hole for the cross nut bolt?
With a transverse blind or through hole of the specified diameter (Ø 10 or Ø 12). Dimensional accuracy and alignment with the bolt hole are important so that the thread engages in the centre.
Are the connections suitable for repeated assembly?
Yes. Both flat head screws and cross nut bolts are designed for detachable connections - ideal for transport, service and modular furniture.