Rivet nuts

[Bob c]

which side are the cows ,,,nearest the camera i hope

Blind Bolts - Orbital Fasteners

The Blind Bolts Zinc / Yellow & Stainless Steel. No longer is fixing into a girder cavity or box section a problem. Blind Bolts products from stock at competitive prices and available for next day delivery from Orbital Fasteners.

www.orbitalfasteners.co.uk

or drill though

not good tapping wall of box, wont be enough threads to hold

 

[trev7530]

Blind bolts are worth a look.

 

[spanners and hammers]

Just googled lindapter. Looks the dogs bullocks but not cheap though

no small ones bout £4 but you do get what you pay for they are good

 

[organicguy]

I have just installed Teemore barriers, the holes are M16 and the cattle putting their heads in and out in a hurry don't half make the barrier flex and bounce.Personally I would want it bolted through.

 

[Dman2]

We just use TEK screws
As long as beast are pushing against them seem to work ok

 

[Robert K]

The steel is 5mm thick. Probably right bolt straight through is safest bet in the end

If it's 5mm thick box I would just drill and tap the holes into M12

 

[forblue]

Used csk type many times on a n/h round baler for the pick-up tine guides, original bolts were self cutting, fine if not removed very often........