News & insight

Depending on the length selected, it may do. We’ll confirm this when quoting your specification.

For sighted collars: screw engagement ≈ collar length. For blind collars: allow clearance (Lu) to avoid screw‑end contact. So Le = L – Lu If you’re unsure, see our guide to screw thread length selection, or get in touch.

No. Custom thread lengths follow the same dimensional tolerances as our standard stud and collar products. This ensures consistent fit, function, and installation performance.

No. Loadability and material properties remain unchanged. A longer or shorter thread only affects the screw engagement you can achieve during assembly.

No. These limits reflect manufacturing capability. If your design requires something different, we can help you find the closest viable alternative.

Installation strength results help you understand how a fastener installation behaves, but they should not be the sole basis for safety factors or permissible loads. Safety margins must also consider: Variability in materials and manufacturing Installation process variation Expected loading envelopes Environmental exposure Inspection or maintenance requirements Where safety margins are critical, check any relevant design standards or regulatory requirements…

As designs mature and real‑world load paths become more complex – or where failure consequences are safety‑critical – evaluation should progress to small‑element or full‑scale testing. These methods validate installation performance under representative geometry, load paths, and boundary conditions.

Coupon‑scale results are suitable when the installation configuration, materials, and geometry closely match the intended application. In these cases, they can confidently support configuration selection and early‑stage design refinement.

Not always. High peak load values can hide issues such as undesirable failure modes, high sensitivity to variability, or behaviour that doesn’t align with real service expectations. Consistency, failure behaviour, and relevance to the application are often more meaningful than maximum values alone.

Each test type applies load in a different direction and creates different load paths and failure mechanisms. Because the loading response is fundamentally different in each case, installation strength values from axial, shear, and torsional tests cannot be compared directly.