Upper Gate Hinge with Post Bracket for 70mm Box Section, 150 x 100mm Plate

The top half of a two-part gate hinge for 70mm box section, carried on a steel arm that fixes to the post. A 150 x 100mm plate with four slotted holes fixes to the face of the post. A welded arm reaches 145mm out, and below it a U-shaped saddle takes the top of your gate upright, held by two bolts across the cheeks at 70mm centres. The arm is meant to work with the matching bottom hinge for 70mm box section fixed down at the foot of the same upright, so buy the two together. The slotted holes allow for an out-of-square post, and the price shown is for one upper hinge.

Why this hinge works

The gate hangs between two fixed points. The top of the leaf is held by this arm and the foot sits on its bottom hinge, so the upright turns on a line between the two and the frame does not need a pin welded to it.

A sealed ball bearing in the arm. The saddle turns on a bearing housed in the end of the arm, so the movement stays smooth over repeated opening.

Small adjustment at the head. The fixing bolt sits in an oblong slot in the top of the arm, with a small screw at the end of the arm, so there is a little room to trim the line of the gate. The range of adjustment is not published for this line.

Slotted plate holes. Four slotted holes give you some tolerance when the post fixings are already in, so a slightly misplaced hole does not mean starting again.

Where it is used

The heaviest frames in this hinge range: gates built on 70mm box section uprights for industrial sites, depots and wide yard entrances. It suits gates where you want the leaf to pivot on a straight vertical line rather than on hinges bolted to the side of the upright.

Specifications

Choosing the right size

The size is set by your gate upright. Measure it across the two faces that will sit between the saddle cheeks. This one is a step up in every direction, not just a wider saddle: the arm is 70mm wide, it reaches 145mm from the post, the plate is 150 x 100mm and 8mm thick, and the slotted holes are 14 x 24mm. Whichever size you pick, the top and bottom hinges must be for the same section.

See the wider range of adjustable gate hinges.

Fitting and care

Fix the bottom hinge base plate first and stand the gate on it, then bring the top of the upright into the saddle. Fix the post plate to the post through its four slots, using fixings to suit the post and the slot size; the fixings are not included. Two bolts cross the saddle at 70mm centres, so check how they land on your frame before you drill anything, and drill the frame only where they need it. Hold the gate plumb while you tighten the fixings and bolts. Then work the gate through its full swing and trim the head before the final tighten.

Check the saddle bolts and the post fixings at each routine inspection. Keep the finish touched up with zinc-rich paint if it is scratched, especially on an outdoor gate near the coast.

Frequently asked questions

Ordering and delivery

Order 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.