m200 slotDIN 981 Slotted Round Lock Nut. Slotted Round Lock Nuts, also named Round lock nut, Slotted Round nuts, Shaft lock nuts, made of steel, M10-M200 from China lock nuts manufacturer.Dynabook Toshiba Portégé M200 12.1 - 1400 x 1050 (SXGA+) - Intel Pentium M 1.6 GHz - 256 MB (1 x 256 MB) - AGP 4x - NVIDIA GeForce FX Go5200 - 60 GB HDD 5400 rpm ;