The spacing assembly screw for subsequently adjustable installation of wooden substructures on wooden surfaces with low edge clearances.
Hardened steel, zinc-plated, blue passivated, partial thread, countersunk milling head with lower fin thread, AW drive, surfaces:
Solid wood (coniferous wood, ash, beech, oak), laminated beams, cross laminated timber (CLT) timber veneer (coniferous wood or BauBuche), OSB and chipboard.
Approved load-bearing spacing assembly screw in accordance with ETA 11/0190 with wobble-free placement characteristics and low edge clearances. Short assembly times possible thanks to simple placement, high power transmission, clean head countersinking and quick adjustment.
Countersunk milling head with underhead thread and AW® drive for wobble-free fit of the bit and very high power transmission.
Easy and clean countersinking of the screw is made possible thanks to its milling pockets.
Asymmetric partial thread with underhead thread with sharp threads and increased gradient for 25% shorter screw-in times.
Plastic non-friction coating:
High-quality slide coating to reduce friction and for easy screwing in.
Precise positioning of the screw is no problem at all thanks to its centring drilling tip, which was specially designed for this purpose. The drilling cutting edges, just like a Forstner bit, guarantee perfect drilling performance and perfect positioning close to the edge in thin wood cross-sections.
Adjustable spacing of wood substructures on thin wood substrates without pre-drilling.
Instructions1.Position JAMO plus bolt2.Screw on wooden slat and countersink the JAMO plus screw3.Turn JAMO plus anti-clockwise, turn back screw or adjust the distance. Head remains flush with the wooden slat
Wood screw thread
Shape of tip
Screw-in angle max.
Screw-in angle min.
Thread length (lg)
Screw-thread length with drill tip (b)
Partial thread with underhead thread for adjusting