SBD Screw - Self Drilling Dowel for Aluminium Hangers

SBD Screw – Self Drilling Dowel for Aluminium Hangers

This is NOT your average "screw"! The SBD is a self-tapping dowel, designed to be used in conjunction with our Alumidi and Alumini hidden hangers. These hangers come in a "without holes" option so you can set your timber and drive the SBD's wherever you want. No need for matching up hole locations in hardware and timber, no up and down, back and forth on the ladder. Get everything in place and send it!

These fasteners have a diameter of 7.5mm and incredible shear strength - but if you need even more strength and rigidity, we can provide 9mm or 11mm shafts of the SBD self-drilling dowels.

These SBD screws require a Torx bit, size T40.
Get extra driver bits here.
A box of 50 screws will come with one driver bit, but the smaller 10- and 5-packs do not.

APPLICATIONS -

The connectors allow for the rapid and precise execution of retractable junctions on aluminium alloy brackets (Alumini and Alumidi brackets). The reduced dimensions allow for excellent fire protection
For applications on reinforced concrete or other uneven surfaces the
self-drilling dowels allow a greater installation tolerance when fixing
the timber element. Values are certified, tested and consolidated

SPECIAL TIP
The self-perforating tip with bleed
shape is specially designed to obtain the
fastest possible penetration of wood and
aluminium

DOUBLE THREAD
The thread up against the tip facilitates
screwing (Lg1); the increased length of the
underhead thread makes for fast, accurate
closure (Lg2)

INCREASED DIAMETER
The diameter of 7.5 mm ensures a shear
resistance of over 15 % and enables
optimisation of the number of fasteners
in the joint

CONCEALED HEAD
The small-diameter concealed cylindrical
head ensures an optimal appearance and
meets fire-resistance requisites

FIELDS OF USE

Self-perforating system for wood-
aluminium concealed joints.

Ideal for ALU bracket with screwdrivers
with 1200 - 1700 rpm.
Service classes 1 and 2