Checking Blum Undermount Drawer Slides

[Fritz]

I recently found that a galley drawer would not close properly, and discovered that all 3 of the #6 5/8" screws holding the slide mount to the cabinet walls had fallen out.  I pulled all of the drawers and found that about half of the screws on other drawer slide mounts were either loose or missing.  

The Blum undermount tandem slides are arguably the best in the business, and in my opinion Oliver's drawer and cabinet construction is superb.  While 3 screws per slide might suffice in the standard stationary kitchen cabinet, it was clearly not enough for this rolling galley.  I installed several screws per slide in fresh holes (giving about 8 per slide).  Hopefully this does the job -- time will tell.  If my current mounting proves insufficient, I'll go with even more #8 screws.

Point of the story: it may be worth checking these in your trailer and adding screws if necessary.

p.s., this apparently isn't a new problem:

 

 

[Geronimo John]

What screw length did you purchase?

Thinking of pre-purchasing them and adding even if not needed right now.

GJ

[Fritz]

I used six #6 5/16 screws on each slide. I also made new holes (i.e., I did not reuse previous holes from which the screws had released). #8 5/16 screws would probably also work. I agree with your strategy of installing additional screws, even if not needed,. This will prevent an on-the-road fix later on.

[Jim and Chris Neuman]

Same problem on hull 770.  Several slides came adrift within a few months of purchase.  The #6 screws are inadequate and too few.  The slide will handle #8's and there are plenty of spots along the track for additional screws in addition to the few Oliver put in.  An hour or so  of labor and many more fasteners will solve the issue.  A small dab of woodworking adhesive will improve retention of the screw.  I would not bed them in epoxy but a small drop of Titebond smeared on the threads will improve the bond.