A 3/8" Whitworth grub screw 1,1/2" long for use with the replacement 8" diameter A section cast iron V belt pulley only.
Not suitable for use with genuine Lister or original pulleys as these have a smaller thread size at 5/16" BSW.
A 3/8" Whitworth grub screw 1,1/2" long for use with the replacement 8" diameter A section cast iron V belt pulley only.