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Description
A weld-on hinge bolt for square-section gates, where the setting has to be adjustable after installation. A heavy steel U bracket welds to the post and carries a pinned eyebolt. The M20 thread passes through a 130 x 60 x 12mm slotted plate that welds to the gate frame, with a washer and nut on each side. Move the nuts along the thread to set the gap between gate and post, and use the slot to shift the depth of the gate. It opens to 180 degrees. The price shown is for one hinge, with a minimum order of 4, because these are normally bought in numbers for a run of gates or doors.

Why this hinge works
You can adjust it after it is installed. Welded hinges normally lock in any error. Here, the gap between gate and post and the gate's depth can both still be adjusted once the steel parts are welded in.
Weld the steelwork, keep the eyebolt clean. The eyebolt, cross pin and fixings are galvanised, while the U bracket and slotted plate are plain steel for welding. Paint or galvanise the plain parts with the frame.
180 degree swing. The hinge sits outside the post face, which lets the leaf fold right back against a run of fencing.
A matching hydraulic closer can be used with this hinge. See the table below.
Where it is used
Steel box-section gates, commercial and school perimeter gates, pedestrian gates and gates that need a hydraulic closer. This is a weld-on hinge, so it is for new fabrication or for gates and posts being altered in the workshop. It is not a bolt-on repair part.
Specifications
| What you get | One hinge, minimum order 4 |
|---|---|
| In the pack | U bracket, cross pin, M20 eyebolt, slotted plate, washers and nuts |
| Eyebolt | M20, 130mm |
| Thread reach | 105mm |
| U bracket | 60mm wide, 51mm high |
| Slotted plate | 130 x 60 x 12mm, 21mm wide slot |
| Bracket to pin centre | 35mm |
| Opening angle | 180 degrees |
| Adjustment | Gap and depth, after installation |
| Finish | Galvanised eyebolt and pin, plain weld-on bracket and plate |
| Gate weight limit | Not published for this line |
| Weight | About 1.73 kg each |
Choosing the right size
This M20 hinge is the larger size in the 3 way adjustment group, and its 130mm eyebolt reaches further than the 110mm M16 version. If you also need height adjustment, or a smaller section, look at the four-way versions below. If your gate cannot be welded, look at the bolt-on hinges instead. If your gate needs to close by itself, check our hydraulic closer for 180 degree hinges, and call us to confirm it will suit your gate.
| You need | Choose |
|---|---|
| M20 eyebolt, 3 way, weld-on | This hinge |
| A smaller M16 eyebolt | M16, 110mm, 3 way |
| An M20 hinge with height adjustment | M20, 4-way weld-on |
| No welding | M16, bolt-on pair |
| A matching hydraulic gate closer | Hydraulic closer for 180 degree hinges |
See the full range of adjustable gate hinges.
Fitting and care
Weld the U bracket to the post at each hinge height, keeping the two pin centres in a true vertical line. Weld the slotted plate to the gate frame, then bring the parts together: fit the eyebolt in the bracket with its cross pin, pass the thread through the slot, and fit a washer and nut on each side. Hang the gate on packers, set the gap and the depth with the nuts and slot, and tighten up.
Paint the welds and the plain steel after fitting. Keep the nuts tight, grease the pin, and re-check the setting after the first few weeks of use.
Frequently asked questions
Is the price for one hinge?
Yes, one complete hinge, and the minimum order is 4. Most gate leaves need two.
What can I adjust?
The gap between gate and post, and the depth of the gate, both after the hinge has been installed.
How much will it carry?
A gate weight limit is not published for this line. Call us with the gate size and weight, and we will help you decide whether it suits the job.
Do the plain steel parts come galvanised?
The eyebolt, cross pin and fixings are galvanised. The weld-on U bracket and slotted plate are plain steel, so finish them with the gate after welding.
Ordering and delivery
Order 4 or more online, with Express UK Delivery to your site and same-day dispatch on orders before 2pm, Monday to Friday. For a larger job, call 01744 520 110 or email sales@industrialsuppliesco.co.uk and we will confirm availability and delivery before you order.
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About Us
Suppliers to Ministry of Defence, NATO, US Airforce and Most UK Councils, Schools, Universities, Hospitals & various Government departments
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Minimum order 4 pcs




