Sprung door bolts

[Jerry]

I need to add a couple of sprung door bolts to the top of a couple very big doors.

Probably at least 20mm, or 25mm bolts.

Need to have drop ropes or chain so can open them from ground level.

Googling and all I find is domestic stuff. Any one know where I can get what I’m looking for?

 

[upnortheast]

These go up to 16mm

Spring Load Bolts 10mm 12mm and 16mm diameter

<p>Shoot bolts, spring bolts, horse box bolts,</p> <p>Bright zinc plated, can be used with trailers, gates and many other uses</p> <p>The plate has a notch so the bolt can stay open if necessary</p> <p&gt

www.gsproducts.co.uk

For 25mm you might have to get your local metalbasher to make them. to your spec

 

[spanners and hammers]

maybe use a pair side by side ?? if you cant get big ones

 

[Bobthebuilder]

2X Heavy Duty Steel Spring Loaded Drop Bolts | 210mm Animal Bolts : Amazon.co.uk: DIY & Tools

Shop 2X Heavy Duty Steel Spring Loaded Drop Bolts | 210mm Animal Bolts. Free delivery on eligible orders of £20 or more.

www.amazon.co.uk

 

[Bobthebuilder]

or any ag merchant that sells galvanised gates

 

[Jerry]

2X Heavy Duty Steel Spring Loaded Drop Bolts | 210mm Animal Bolts : Amazon.co.uk: DIY & Tools

Shop 2X Heavy Duty Steel Spring Loaded Drop Bolts | 210mm Animal Bolts. Free delivery on eligible orders of £20 or more.

www.amazon.co.uk

no where near strong enough I’m afraid

 

[dannewhouse]

I make my own 25mm gate latches.

Bent bar in hydraulic press (sumat like 25ton to get them to 90 degrees (you don't need to bend if attaching rope)
I buy springs from a local spring maker 2.50 or 3.50 zinc plated (galvanized nackers springiness) roll pin + washer to hold spring.

If You just get 25mm bar drill a hole through it for a bolt or to pass rope through. Spring will lift it rope pull it down.
I have 2 per gate so have a lug welded on to hold catch in open position you wouldn't need it.

 

[Forever Fendt]

I make my own 25mm gate latches.

Bent bar in hydraulic press (sumat like 25ton to get them to 90 degrees (you don't need to bend if attaching rope)
I buy springs from a local spring maker 2.50 or 3.50 zinc plated (galvanized nackers springiness) roll pin + washer to hold spring.

If You just get 25mm bar drill a hole through it for a bolt or to pass rope through. Spring will lift it rope pull it down.
I have 2 per gate so have a lug welded on to hold catch in open position you wouldn't need it.

I do exactly the same but just weld a chain link on the end of the Round bar for the Rope to attach to