News & insight

Standard collar fixing load limits (FLL) and torque recommendations apply. Weld load limits (WLL) may differ and are available on request.

Subtract the unusable length (Lu) from the collar length (L): Le = L – Lu.

M4: 10 & 15 mm M5 to M8: 10, 15 and 20 mm M10 and M12: 15 and 20 mm

No. This customisation applies only to F2/SF2 internally threaded collars used with blind Head types B20, B23, B30, B32, B38A and T38A.

The blind flange collar design prevents resin or polymer ingress during moulding or composite processing, protecting the thread from blockage and reducing rework.

No. Standard collar fixing load limits (FLL and WLL) and torque recommendations apply.

Subtract the unusable length (Lu) from the collar length (L): Le = L – Lu.

M4: 10 and 15 mm M5 to M8: 10, 15 and 20 mm M10 and M12: 15 and 20 mm

No. This customisation applies only to F2/SF2 internally threaded collars with sighted Head types S20, S23, S30, S32, S38A and ST38A.

The blind shank design prevents fluid or moisture ingress, protecting the thread from adverse effects due to environmental exposure.