Material A/F 13 mm hexagonal shear-off screw made of brass for best controlled installation. Insulated jackets made of glass fibre reinforced thermoplastic. Tap conductor end seal-cap. Seal-cap link. Application • On Aerial insulated Bundled Conductors (ABC). • No apparent metallic part is at line potential, during and after installation. • Parts cannot be lost. • The tap conductor may leave either side. • The connector is not reusable Installation • Tighten the 13 mm A/F bolt with an insulated socket wrench till shear-off.