Screw to fix wood to steel

hooplah

I have a steel shed. Partly fitted out by vendor. They used scres / bolts like this one

I want to put up some plywood in another section and figure I may as well use them too. One question, how do get it through the galvanised steel? Do you drill a small hole first? Hammer it through? Something else?

mickdw

It has a little drill bit on the tip. You need a high speed drill and it will drill itself into the steel.
Some of them are made for thin gauge steel and won't do the job though.

I have seen people drill a small pilot hole where steel was very thick.

Charles Ingles

Self tapping screw, available in any builders providers, no need to drill any holes the screw head does all the work just need a screw gun

hooplah

Ah, I never thought of a screw gun. Thanks folks.

my3cents

Check the local builders merchants they should have tek screws for wood to steel. If you don't want the bolt heads showing and would prefer to contersink the screws then you can get pozi and phillips head screws also https://www.orbitalfasteners.co.uk/en/products/timco-5-5-x-65mm-countersunk-self-drill-screws-timber-to-metal-3-0-12-0mm-bright-zinc-plated-no3-phillips-drive as an example.

my3cents

hooplah wrote: »

Ah, I never thought of a screw gun. Thanks folks.

This is one job when an impact driver comes in handy.

aido79

hooplah wrote: »

I have a steel shed. Partly fitted out by vendor. They used scres / bolts like this one

I want to put up some plywood in another section and figure I may as well use them too. One question, how do get it through the galvanised steel? Do you drill a small hole first? Hammer it through? Something else?

Hammer a screw? No offense but it might be worth getting some assistance from someone who knows what they're doing if you are asking things like that.

Roen

aido79 wrote: »

Hammer a screw? No offense but it might be worth getting some assistance from someone who knows what they're doing if you are asking things like that.

The OP had already been answered and responded to some constructive posts so you know they are on the right track at this stage.
Your post adds nothing in terms of what to actually do. You picked one of four questions and used it as a means to have a pop. Useless.

Calahonda52

Charles Ingles wrote: »

Self tapping screw, available in any builders providers, no need to drill any holes the screw head does all the work just need a screw gun

Not my experience.

Language is important

https://www.firstcallautosupply.com/self-drilling-screws-vs-self-tapping-screws/

What’s the difference between a self-drilling screw and a self-tapping screw?

aido79

Roen wrote: »

The OP had already been answered and responded to some constructive posts so you know they are on the right track at this stage.
Your post adds nothing in terms of what to actually do. You picked one of four questions and used it as a means to have a pop. Useless.

If it was me doing it I would place the plywood against the wall of the shed and mark where the beams line up and then draw a line along this. Then using a small drill bit drill small holes at equal intervals along the lines where the OP thinks it will be necessary to puts screws. When that's done I would use a tek screw bit to screw the screws shown above through the small holes and into the beam. Although for a better finish I think phillips head self tappers would be preferable because they would finish flush.
Is that constructive enough?
To be honest I have my doubts about the OP's diy skills with the questions asked and the fact they never thought of using a screw gun.

Roen

Apologies Aido, went off a bit.

I didn't go ply in the end but rather put planks that have hooks/screws for suspending stuff and a set of shelves that are tied to the steel frame with the winged screws mentioned above ^^.