Hollow Wall anchor

[mjtefc9]

I'm using a hollow Wall anchor with setting tool.. but some of the bolts just spin when screwing in?

It's driving me mad.. any ideas?

 

[Deleted member 174758]

Hole too big? Not pulled up tight enough?

 

[mjtefc9]

Hole too big? Not pulled up tight enough?

Hole seems fine and the grips are in the plasterboard.. it seems to start tightening them pops and spins

 

[Deleted member 174758]

How old is the PB, is it damp at all, and how thick is it?

 

[mjtefc9]

Just 15mm I presumed? It's a partition in a new build... It's dry, it's 4 years old

 

[Deleted member 174758]

OK, so it should be OK. What length of anchors are you using? (I am trying to get to the bottom of this... ). I also find with my two setting tools (which are both out-of-the-Ark Rawl guns some 20+ years old) that you often need to pull-up the fastening, remove the gun, screw the machine screw in a bit further then do a second pull - it seems to depend on the length of the fixing to an extent. Have you tried taking a fixing and doing a pull-up "dry" (i.e. not in the wall) to see if you need to do a second pull-up?

 

[rsgaz]

pops and spins

Are they cheapo ones from eBay/Amazon/etc?
I'd recommend getting some Fischer ones and trying again. They have a very large range of sizes...

Metal cavity fixing HM - fischer fixings

The fischer metal cavity fixing HM is a flexible cavity fixing with metric screw for all panel building materials with a wall thickness of 3 to 50 mm. The plug is set in the pre-positioned installation using the installation pliers fischer HM-Z 1. The plug is pulled against the panel building...

www.fischer.co.uk

 

[foxhole]

Don’t use a power screwdriver it will spin them , tighten by hand or use needle nose pliers to stop them spinning .Did you tighten first then remove screw to use for your fixing?

 

[Deleted member 174758]

Don’t use a power screwdriver it will spin them , tighten by hand or use needle nose pliers to stop them spinning .Did you tighten first then remove screw to use for your fixing?

The guy did say he was using the setting tool...

 

[foxhole]

The guy did say he was using the setting tool...

Doesn’t mean he was using it correctly or that they won’t spin if you use the wrong tool.

 

[mjtefc9]

Don’t use a power screwdriver it will spin them , tighten by hand or use needle nose pliers to stop them spinning .Did you tighten first then remove screw to use for your fixing?

Hi.. No didn't tighten first, should I ? And I did use a screwdriver.

I'm using the Rawlplug anchors and tool..

 

[opps]

I have had the same issue in the past with the smaller 4mm Rawlplug anchors. The threads in the anchor stripped as I tightened them (after having previously used the Rawlplug Interset tool.

I have never had it happen with the 5mm ones.

I don't have the most manly of wrists, so I suspect that it is a quality control issue. Of the last 20 or so that I used, it happened twice.

 

[mjtefc9]

Yes these are M4 X 38MM

I have had the same issue in the past with the smaller 4mm Rawlplug anchors. The threads in the anchor stripped as I tightened them (after having previously used the Rawlplug Interset tool.

I have never had it happen with the 5mm ones.

I don't have the most manly of wrists, so I suspect that it is a quality control issue. Of the last 20 or so that I used, it happened twice.

 

[opps]

Hi.. No didn't tighten first, should I ? And I did use a screwdriver.

I'm using the Rawlplug anchors and tool..

Foxhole missed the bit about you using the setting tool. Obviously, when using the tool, you can't tighten the screw first. If you were to do that, the setting tool wouldn't be able to grab the screwhead.

As an aside, I think they should make a tool specifically for the 4mm fixings. The head is too small to grab (which is why they use washers on them). I often found them slipping out as I pulled the trigger.

I suspect that you are not at fault.