2x M8 Studs Combination Tunnel Size (35mm² & 16mm²)
250 Amp Neutral / Earth Bar 6 Pole - 2 x Screws per tunnel 2 x M10 stud..
250 Amp Neutral / Earth Bar 12 Pole - 2 x Screws per tunnel 2 x M10 stu..
250 Amp Neutral / Earth Bar 18 Pole - 2 x Screws per tunnel 2 x M10 stu..
250 Amp Neutral / Earth Bar 24 Pole - 2 x Screws per tunnel 2 x M10 stu..
250 Amp Neutral / Earth Bar 36 Pole - 2 x Screws per tunnel 2 x M10 stu..