-
Satisfaction Guaranteed.
-
Secure Payments
- Refund policy
-
Need help? Call Us 01744 520 110 or email sales@industrialsuppliesco.co.uk
Description
A 4 inch double fold weld-on butt hinge in raw mild steel, for steel lids, flaps, hatches and doors. Each 30mm leaf is folded double to 4mm thick and the two leaves stay together on the pin through five 20mm knuckles. It opens to 72mm wide and welds flat to the frame, so it suits any job where a lid or flap needs to fold back. In the box: one complete hinge. The price shown is for one butt hinge, minimum order 5.
What you get
| Complete hinge, two leaves on their pin | 1 |
|---|
Why choose this hinge
Double fold leaves. Each leaf is folded double to 4mm thick, which gives you a stiff leaf with a good edge to weld along.
Five knuckles. Five 20mm knuckles share the work along the full 102mm of the hinge.
Ready to weld. Raw mild steel with no coating to clean off before you strike an arc. Paint it with the job when you have finished.
Where it is used
Site boxes and tool chests, steel lids and flaps, floor and roof hatches, machine covers, trailer lockers, fold-down shelves and small steel doors.
Specifications
| Sold as | One hinge, minimum order 5 |
|---|---|
| Length | 102mm (4 inch) |
| Width, opened flat | 72mm |
| Each leaf | 30mm wide, 41mm with the knuckle |
| Leaf thickness | 4mm, double fold |
| Depth at the knuckle | 10mm |
| Knuckles | Five, about 20mm each |
| Material | Mild steel |
| Finish | Raw steel |
| Weight | About 0.26 kg |
Is this the right one?
| You want | Choose |
|---|---|
| A flat 4 inch butt hinge that welds to a lid, flap or door | This hinge |
| A lift-off hinge with flat leaves and a loose pin | 100 x 16mm mild steel flag hinge |
| A smaller lift-off flag hinge | 80 x 14mm mild steel flag hinge |
| A round machined barrel hinge | Small machined bullet hinge 110mm |
Fitting
Use at least two hinges per lid or door, in one straight line. Sit each leaf flat on the frame with the knuckles clear of the edge so the lid can fold back. Tack both leaves, check the movement, then weld along the outer edges of the leaves. Keep heat and spatter away from the knuckles, and let the hinge cool before you work it.
Care
Raw steel will rust if it is left bare, so paint the hinge with the job, keeping paint out of the knuckles. A drop of oil at each knuckle keeps it moving freely.
Frequently asked questions
Is the price for one hinge?
Yes, one complete hinge. The minimum order is 5, enough for two or three lids or doors.
What does double fold mean?
Each leaf is steel folded double, so the leaf is 4mm thick in all and the fold wraps round the pin to form the knuckles.
Can the two leaves be separated?
No, the leaves stay together on the pin. If you want a hinge that lifts apart, choose a flag hinge from the table above.
Does it come painted or coated?
No, it is supplied as raw mild steel, ready to weld and paint.
How much weight will it carry?
No load rating is published for this hinge, so we do not quote one. Use more hinges along the edge on a longer or heavier lid.
Ordering and delivery
Order online with Express UK Delivery to your site and same-day dispatch on orders before 2pm, Monday to Friday. For larger quantities call 01744 520 110 or email sales@industrialsuppliesco.co.uk and we will confirm stock and delivery before you order.
Our products have been used by
Logos are for illustrative purposes only and do not imply official endorsement
About Us
Suppliers to Ministry of Defence, NATO, US Airforce and Most UK Councils, Schools, Universities, Hospitals & various Government departments
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Minimum order 5 pcs