Slide Clips and Brackets

The small parts that lock an undermount drawer box to its runners: Blum locking devices for the front of the box, rear mounting brackets and sockets for the cabinet, and adapters for face frame cabinets. Left and right hand versions, with side adjustment where Blum offers it.Our undermount boxes are notched for these clips, so a box ordered with the right slide model drops straight on. Not sure which clip your runner takes? The Blum undermount drawer boxes guide matches runners to locking devices.

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What a locking clip does

On an undermount runner, the front locking clip screws under the box and latches onto the runner, holding the drawer down and giving height and side to side adjustment once it is installed. Without it the box sits on the runners but is not locked in, and can lift or shift when the drawer is pulled. We press the matching clip on at the shop when you pick it in the configurator, or leave the box at No Clips if you already have a pair.

One clip per runner family

No maker's clip fits another maker's runner, and on Blum, not even both platforms share one: Blum T51.1901 fits Tandem plus BLUMOTION 563 only, and Blum T51.7601 fits Movento only, since the two platforms bore their clip holes in different spots. Würth's PRO600 family takes its own clip set. Blum undermount drawer slides covers which clip goes with which Blum runner.

What the clips adjust

Blum's T51.1901 and T51.7601 locking devices both give the same range once pressed on: height up to plus 3 mm (1/8 in) and side to side up to plus or minus 1.5 mm (1/16 in), tool free, with a minimum inside drawer width of 170 mm (6 11/16 in). Würth's PRO600 family offers a choice of clips, FCLIP3D and FCLIP2D among them, each giving side and height adjustment on the runners we stock, PRO600, PRO600 Heavy Duty and PRO634.

Rear brackets and sockets

A face frame cabinet needs a rear mounting bracket or socket so the back of an undermount runner can reach the cabinet back instead of the frame stile, or a rear bracket on a side mount slide so it clears the frame the same way. The bracket or socket does not change how the box is cut, only how the runner mounts to the cabinet.

Questions

Do undermount drawer slides come with the locking clip?

No. Blum and Würth sell the runner and the clip as separate parts, so pick the matching clip to have it pressed on, or order No Clips and press on your own.

Will a Blum Tandem clip fit a Blum Movento runner?

No. Tandem and Movento bore their clip holes in different spots, so a box cut for one does not fit the other's clip.

What is a rear mounting bracket for?

It lets an undermount or side mount runner reach past a face frame stile to the cabinet back, for cabinets where the frame sits proud of the cabinet side.

Do you install the locking clips for me?

Yes, at the shop, when you pick the matching clip in the configurator.

Does a rear bracket change the size of the drawer box?

No. The bracket changes how the runner mounts to the cabinet, not how the box itself is cut.