Okay I thought this was going to be easy but I can't find out what these are called or where to get them in bulk (200 or so)?



Who's going enlighten me first?

Approx. dimensions: Hex: 10mm / 3/8"
Screw:20mm - 25mm
Washer: 20mm

I've seen them holding on car wings and such like.

[Edited on 2/3/07 by daviep]

Cedric

They look like roofing screws to me

[Edited on 2-3-07 by RazMan]

Looks like what they use to put the cladding on factory units.

Galvanized roof bolts?? Depending on how big the thing is I've seen the big uns on roofs and little black ones in bits of trim on motors.

Their called Tek screws, as said industrial roofing and cladding is fixed with them.

[Edited on 2/3/07 by Wadders]

http://www.slecladding.co.uk/teks.htm

Screwfix do em.

Alex

Hilti in Dundee

[Edited on 2-3-07 by mangogrooveworkshop]

GTC Direct have them in their catalogue as coach screws. Good source for screws bolts and rivets etc.
www.gtc-direct.com

Also used on Cortina wings, some body repair suppliers sell them.

Used to be a varition called "Tapptite" screws that the british motor industry used for a few years, Chrysler UK even used them to hold on the water pump on the Chrysler Sunbeam 930cc.

Taptite screws need the hole drilling for them though and are ridiculously easy to strip, where as tek screws will drill there own and come in a diverse variety of shapes, lengths and type depending on what material and how thick it is.




Screwfix web page here.