Ard these self tapping screws

[sh40]

Toyota Black #10 x 3/4" Phillips Loose Washer Trim Screws- Qty.25 -#246

Toyota Black #10 x 3/4" Phillips Loose Washer Trim Screws- Qty.25 -#246

www.lfufro.com

Need to put on a few extra screws in a fiat 100 90 interior to keep it together. Do these screws tap themselves going in normally? Also what size drill bit to make the hole?

 

[Lofty1984]

Toyota Black #10 x 3/4" Phillips Loose Washer Trim Screws- Qty.25 -#246

Toyota Black #10 x 3/4" Phillips Loose Washer Trim Screws- Qty.25 -#246

www.lfufro.com

Need to put on a few extra screws in a fiat 100 90 interior to keep it together. Do these screws tap themselves going in normally? Also what size drill bit to make the hole?

I’d say no doesn’t look like a cutting edge from the pic but there’s no reason why you can’t use a self tapper to make a hole then screw one of those in after

 

[Lincs Lass]

Try a few sample holes in some scrap tin before you drilling all over the cab

 

[sh40]

What would the correct name of the screws in looking for be called also?

 

[sh40]

Try a few sample holes in some scrap tin before you drilling all over the cab

Good thinking. I only need to do 3 or 4 to preserve interior from getting ripped up further.

 

[Lincs Lass]

10 x Speed Fastener U Nuts Interior Trim Panel Self Tapping Screw Spire U Clips | eBay

U-Nuts provide a strong and secure fixing for applications where two panels require holding together. Screw sizes: No. 4, 6, 8, 10, 12 & 14. Screw Size Variations. more quickly and easily than conventional nuts.

www.ebay.co.uk

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Those type of screw would be used with these clips .

Toyota Black #10 x 3/4" Phillips Loose Washer Trim Screws- Qty.25 -#246

Toyota Black #10 x 3/4" Phillips Loose Washer Trim Screws- Qty.25 -#246

www.lfufro.com

 

[sh40]

10 x Speed Fastener U Nuts Interior Trim Panel Self Tapping Screw Spire U Clips | eBay

U-Nuts provide a strong and secure fixing for applications where two panels require holding together. Screw sizes: No. 4, 6, 8, 10, 12 & 14. Screw Size Variations. more quickly and easily than conventional nuts.

www.ebay.co.uk

.
Those type of screw would be used with these clips .

So what are the type I should get? The ones currently on it just screw through the steel. I need them to have the countersunk washer to match the ones already on

 

[Lofty1984]

So what are the type I should get? The ones currently on it just screw through the steel. I need them to have the countersunk washer to match the ones already on

Just do what I said with the first ones you put up if they aren’t self tap ones tap a hole first

 

[Cowabunga]

Tech screws. Usually have hex heads for a drill with suitable socket.

Self Tapping Steel Screws - Search Results | Screwfix

Order self tapping steel screws at screwfix.com. Free next day delivery available. Buy online & collect in hundreds of stores in as little as 1 minute. Free returns. 30 day money back guarantee.

www.screwfix.com

However, the screws in the original picture are called self tapping and may well be, in wood. In steel they need a suitable size pilot hole drilled first. Those ones shown in the Screwfix link will drill through mild steel and are the type you'd use to sheet doors or attach roofing sheets to steel purlins. The former are 'self tapping' while the latter are 'self drilling' and tapping.