GRR-Ripper 15.9mm Thumb Screws
Whilst this is a spare part for the GRR-Ripper Material Control System, it can also be used as a thumb screw in conjunction with the offset oval nutsthat will fit in either the Baladonia or IncraT-Tracks and T-Track Plus.
Push Block GRR-Ripper Part 10-32 x 5/8in Thumb Screw Pk 4
Sold as a packet of 4, the overall length of the thumb screw is 31.8mm with a 3/16 32 x 15.9mm thread. The outside diameter of the knob is 17.5mm - slightly less than the overall width of standard t-track.