20.4.2 Collar Eyebolt
The collar eyebolt is illustrated in Figure 20.3-2 . It is designed for both axial and angular loading and is available in a range of capacities of 0.4t to 25t SWL with corresponding thread sizes of 12mm to 72mm in the metric coarse pitch series. Imperial threaded collar eyebolts are also available in a range of capacities of 0.25t to 30t with corresponding thread sizes of 3/8” to 3” BSW or UNC. The SWL range of the imperial threaded collar eyebolt differs from that of the metric threaded collar eyebolt because they are intended as replacements for eyebolts to older now withdrawn standards.
Eyebolts of 8 and 10mm are available, but LEEA does not recommend their use as they can be easily overtightened and subsequently overloaded. Always ensure that the manufacturers instructions are followed and that eyebolts are not overtightened.