This a high quality universal 2 line head which comes pre loaded with 2.4mm diameter line. This head comes complete with various adaptor bolts to fit upto 85% of strimmers and brushctters.
Bolt sizes are as follows
Blue, Shaft Bolt, 8mm x 1.25mm Left hand female
Silver, Shaft Bolt, 10mm x 1.25mm Left hand female
Gold, Shaft Bolt, 10mm x 1mm Left hand female
Red, Shaft Bolt, 3/8" x 24 SAE Right hand female
Black, Stud 8mm x 1.25mm Left hand male
Silver, Stud, 7mm x 1mm Left hand male
Should the 2 line head need replacing due to wear and tear our standard 2 line head will then fit the adaptor bolt saving you money.