Countersunk Phillips Barrel Nuts

5mm - Head Dia. = 12mm, Overall Length = 20mm, Barrel Outside Dia. = 7mm

6mm - Head Dia. = 14mm, Overall Length = 23mm, Barrel Outside Dia. = 8mm

8mm - Head Dia. = 15mm, Overall Length = 27mm, Barrel Outside Dia. = 10mm