M10 X 30 Jaw T-Nut Screw for 8" & 10" Chucks ~ Fits our Jaw Nuts # 3900-4782, 3900-4789, 3903-4782, 3900-4783, 3900-4790 and 3903-4786 ~ Taiki # TW-305A4 M10 X 30 Jaw T-Nut Screw for 8" & 10" Chucks Fits our Jaw Nuts # 3900-4782, 3900-4789, 3903-4782, 3900-4783, 3900-4790 and 3903-4786