What this is
A fiberglass-reinforced plastic spring clamp — a different body material than the metal-bodied clamps in our spring clamps comparison, and a smaller 40mm clamping width than their 2" capacity. Wolfcraft also sells this line at 60mm; this page covers the smaller 40mm size specifically.
Full specs
| Spec | Value |
|---|---|
| Model | 3630000 |
| Clamping width | 40mm (~1-9/16") |
| Material | Fiberglass-reinforced plastic, perforated structure |
| Weight | 0.056 kg (~2 oz) |
| Jaw feature | Movable jaws; V-profile cross groove for round stock |
| Holding load capacity | 1,200 g per Wolfcraft’s own page — we’re not translating this into a comparable lb clamping-force rating, since it doesn’t clearly match how force is rated on the metal clamps elsewhere on the site |
| ASIN | B0001P19NQ |
Source: wolfcraft.com’s own product page — manufacturer-published, not a retailer listing.
Wolfcraft 3630000 PRO Spring Clamp (40mm)
Also available in a 60mm size (article 3631000) from the same manufacturer line. Plastic body is lighter than a comparable metal spring clamp but not necessarily rated for the same clamping force.
View Price on AmazonWho this is for
Light-duty tacking and small-parts holding where a lightweight plastic clamp is enough — model-making, small craft work, or backing up a primary clamp at a second point.
Who this isn’t for
Anything needing confirmed higher clamping force or a larger 2" capacity — the metal-bodied Bessey XM5 and IRWIN 222702 in our spring clamps comparison are the sturdier, larger-capacity options.
Bottom line
Manufacturer-sourced dimensions and material, not a hands-on test. On paper this is a lighter, smaller-capacity alternative to the metal spring clamps already on the site, with one real spec gap: we couldn’t confidently translate the manufacturer’s stated holding capacity into a comparable force rating. Wolfcraft 3630000 PRO Spring Clamp if light-duty plastic construction fits your use case.