Dimensions & Specifications



It takes two pieces of Zinterlock to make a support.  One piece is simply inverted such that it fits into the other.   The drawing at right indicates outer cross-sectional dimensions of the single batten, and of the assembled pair of Zinterlock battens.


Overall thickness when assembled: 13mm (this is the distance separating the item being mounted, from the mounting surface).

Overall width when assembled: 114mm.

Vertical Overlap: 37mm (this is the height one batten must be lifted over the other before it can be lowered to mate to the other).  This vertical overlap will be important if the top of the object being supported is close to a ceiling.


Zinterlock is extruded from Aluminium Alloy 6063/Temper T5.  The product complies with British Standard GB5237-2008.

zinterlock for sliding supports

In some cases, an object suspended on a Zinterlock batten must be slid over another surface.  Horizontal sliding of one Zinterlock batten over the other may be tolerated to a limited degree depending on the weight being supported. However, Aluminium alloys are not ideally used in such sliding contact situations.  If such a requirement is frequent or ongoing, a low friction high strength film can be applied to the Zinterlock mating surfaces.  Please ask us for help….


Zinterlock’s section has an area moment of inertia Ixx about its longitudinal axis of 131.028 x 103 mm4. When combining the two battens, the combined moment of inertia of the two sections about the locking pin axis is 441.4 x 103 mm 4.

Based on yield strength of 110MPA, maximum distributed (vertical) load for Zinterlock under bending is 1.7kN/m.   In practice, the most likely failure modality for an implementation will be due to vertical shear load at fastening locations where localised material yield using an 8mm diameter fastener is calculated at 2.5kN per fastening.

It is recommended that shear load per fastener should always be lower than 500N (equivalent to a 50kg weight) and in any case should be compliant with relevant specifications for the fastener.  Add fasteners along Zinterlock’s length to distribute load.