PRODUCT 06.01 · FITTINGS
Arch clamps & connectors — the joint is where a frame fails first.
Cast or formed clamps that join arch to gutter, arch to purlin, and tube to tube. Quoted against the frame schedule so the quantities match the members they join.

Arch clamps & connectors are specified by the member they connect, not by a generic size. Give us the tube or profile it grips and the load it carries, and the part follows. Where a drawing specifies a brand, we will quote the compatible equivalent and say so in writing.
What to put on the enquiry
- The member it connects: section, outside dimension and wall.
- Quantity per arch, per bay or per house — a total is enough if the house count is clear.
- Whether the fixing is a bolt, a self-drilling screw or a clip.
- Any coating requirement: galvanised, zinc-flake, or stainless for coastal sites.
| Line | Unit | Notes |
|---|---|---|
| Main connectors | pcs | Bore to match the tube OD or oval face |
| Secondary fixings | pcs | Screws, bolts, washers — specify grade |
| Spares allowance | % of main | 5 % on clips, 2 % on clamps |
| Sample bag | 1 set | Sent before first production run |
Exact item list depends on the drawing; the quotation itemises every line rather than a lump “fittings” sum.
Related
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- 08.01Specify a frameHow to specify a greenhouse frame: span, bay, eaves, load case, covering, coating, fitting→
BUILD THE BOM
Send the frame schedule for arch clamps & connectors
We return quantities per member, a spare allowance, and a sample bag offer before you commit to production.