Brother LARGE Thumb Screw M4 L For PR600 PR1000 Series XC5553051
Large Thumb Screw, Brother #XC5553051 Details
Fits Babylock Sewing Machine Models:
BND9-2, BMP6, BMP8, BMP9, BMV10 Valiant, BMVT10, BNT10, EMP6, Endurance BND9
Fits Brother Sewing Machine Models:
PRS100, PR1X, PR600, PR600II, PR600C, PR620, PR650, PR650C, PR655, PR655E, PR670E, PR680W, PR1000, PR1000E, PR1050X, PR1055X
The Small Thumb Screw (#XC5817051) can be found here.