Where to get 150mm screw drill bit from?

[Codekid]

Searched around and unable to find any for no 7 screws for some sleepers I bought. Any help guys? Thanks

 

[big-all]

i assume you mean 7mm screws as number seven are about 3.5mm

 

[Codekid]

Pack says No. 7 screw yet link here which is what I bought says 7mm diameter. http://www.wickes.co.uk/Wickes-Timber-Drive-Screws-150mm-Pack-25/p/190111

 

[Ian H]

So you want to drill a hole before the screw goes in?

https://www.amazon.co.uk/sourcingmap-150mm-Straight-Shank-Woodworking/dp/B00YCDRTDM

 

[Codekid]

Yes, thanks, I was searching for a while last night and unable to find anything, maybe because i was using the no 7 bit in there, thanks for that!

 

[nuzuki]

I just made some veg boxes out of half sized railway sleepers. I attached the corners using 200mm M8 coach screws. To drill the holes I used a long masonary drill bit. If you have number 7's then I would use a m6 masonary drill bit but of course lay the drill bit and screw side by side first to check the screw is wider than the drill.

Hope that helps