Large Diameter Lockbolt Collars are engineered to match and secure large diameter lockbolt pins, forming a permanent, high‑strength structural joint. During installation, the collar is swaged onto the pin to deliver consistent clamp force and excellent vibration resistance. Available in standard, flanged and half collar configurations, they provide flexibility to suit different load requirements and joint designs in heavy‑duty industrial applications such as construction, transport, mining and structural fabrication.