Multiple available. Grub screw fixing.
Silver Cap Large Black Retro Fluted Control Knob - 6mm Round Hole Grub Screw
30mm silver knurled aluminium knob 6mm grub screw fixing solid metal hifi solid
Marshall style silver top grub screw amplifier control knob solid smooth shaft
24mm Silver top hat knob fluted grub screw 6mm smooth pot shaft volume tophat
Silver arrow Oven knob cooker amp 38mm 6mm smooth shaft grub screw aluminium
Silver knurled skirted numbered aluminium knob 6mm grub screw fixing solid metal
