Scaffold & Formwork Fastener
A flat washer sits under the nut or bolt head and spreads the clamping load over a wider area, so the nut does not chew into the surface and the joint pulls up clean and even. Lengge supplies washers for scaffold and formwork fastenings: flat round washers for general fixings, square plate washers where the load needs spreading over a bigger area, and spring washers where vibration could shake a nut loose. They are galvanized steel in M-sizes to match your bolts.
We supply washers in bulk or matched into complete bolt and nut sets, so the washer, nut and bolt arrive together and fit. Factory-direct, alongside the rest of the scaffold and formwork fixings.
| Item | Specification |
|---|---|
| Types | Flat (round), square plate, spring / lock |
| Function | Spreads clamping load, protects the surface, resists loosening |
| Used with | Scaffold and formwork bolts, nuts and tie rods |
| Sizes | M-thread to suit (M12 to M24 and others) |
| Material | Steel |
| Finish | Hot-dip galvanized |
| Standard | DIN125 (flat), DIN127 (spring) |
| Supply | Bulk, or matched in bolt and nut sets |
Type, size and finish are matched to your bolt. Send the bolt size and we supply the right washer with it.
A washer is a thin ring or plate that sits under a nut or a bolt head. It spreads the clamping load over a wider area, which protects the surface from being marked or crushed, gives an even bearing, and on some types helps stop the nut working loose. It is a small part, but it makes a bolted joint hold properly.
A flat washer is a plain round ring that spreads the load and protects the surface. A spring or lock washer is split or shaped so it pushes back against the nut and resists loosening under vibration. A square plate washer is a larger square plate that spreads the load over much more area, used on softer or uneven surfaces. Each suits a different fixing.
Use a square plate washer where the load has to be spread over a big area or the surface is soft or uneven, such as on formwork tie rods or against timber. A small round washer would dig in there; the square plate gives a much larger bearing so the fixing pulls up tight without crushing what is under it.
Washers are steel and hot-dip galvanized, in M-sizes to match the bolt, from small fitting sizes up to the M20 and M24 used on cantilever and formwork fixings. Flat washers follow DIN125 and spring washers DIN127. Tell us the bolt size and we match the washer.
Yes. We supply washers in bulk on their own, or matched into complete bolt and nut sets so the washer, nut and bolt fit together and arrive on one order. For scaffold and formwork work, ordering the set is usually simpler than sourcing washers separately.
We hold washers in bulk and ship them with the rest of the fixings. Stock moves quickly; large or custom orders we confirm at the time. They pack dense into containers so freight per ton stays low, and we handle export packing and documents.
A washer is the smallest part of a bolted fixing and the one most often taken for granted, but it is what makes the joint pull up cleanly and stay tight. This is a short guide to what a washer does, the three types we supply, and how to pick and size them for scaffold and formwork work.
A washer goes under the nut, or under the bolt head, and spreads the clamping force over a wider footprint. That does three things: it protects the surface from being scored or crushed as the nut turns, it gives the nut a flat, even seat, and with the right type it helps keep the nut from working loose. On scaffold and formwork fixings, where bolts are tightened and released many times, that small ring saves the steel underneath and keeps the joint reliable.
Three washer types cover almost every scaffold and formwork fixing:
| Type | What it does | Best for |
|---|---|---|
| Flat (round) washer | Spreads load, protects the surface | General bolt and nut fixings |
| Spring / lock washer | Resists loosening under vibration | Joints that vibrate or get knocked |
| Square plate washer | Spreads load over a large area | Formwork tie rods, timber, soft surfaces |
The flat washer is the default. Add a spring or lock washer where vibration could loosen the nut. Reach for the square plate washer when the surface is soft or the load needs spreading wide, which is exactly the case on formwork tie rods and against timber formwork.
Washers are steel and hot-dip galvanized so they last out in the weather and do not rust into the joint. Sizes run in M-threads to match the bolt, from the smaller fitting sizes up to the M20 and M24 used on cantilever and formwork fixings, with flat washers to DIN125 and spring washers to DIN127. The simplest way to buy them is matched into bolt and nut sets, so the washer, nut and bolt are the right size for each other and arrive together rather than being sourced as loose parts.
