Brake light bolt UNF. Banjo bolt for Goodridge brake lines, incorporating a hydraulic brake light switch. 3/8 UNF thread. Replaces single length banjo bolt. Can be used to upgrade the old crappy lucas brake light switch that is fitted into the standard triumph mastercylinder switch gear. The front brake pipe must be a banjo fitting at the mastercylinder end to allow fitting of this switch (use 99-0643A rubber boot if required) For fitting to a UK machine that has no banjo at the master cylinder, use the alternative  60-4177GB fitting plus this switch