We present the analysis of 31 observations ( 17 of which are published here for the first time ) of 20 bright Compton thin Seyfert 2s , in the 0.1-200 keV band , performed with the BeppoSAX satellite . The sample consists of all Seyfert 2s in the BeppoSAX public archive , with a 2-10 keV flux higher than 5 \times 10 ^ { -12 } erg cm ^ { -2 } s ^ { -1 } . The good statistics available and the broad energy band permit a detailed study of the main continuum components of these sources , i.e . the primary power-law , the reflected component , the soft emission and the high-energy cut-off . The main results of our analysis are : ( 1 ) the 3-200 keV intrinsic power-law has a mean photon index \Gamma = 1.79 \pm 0.01 , with a dispersion of \sigma = 0.23 . ( 2 ) The high-energy exponential cut-off at E \sim 100 - 300 keV is not an ubiquitous property of Seyfert galaxies : in \sim 30 % of the objects the continuum power-law does not drop up to energies of 300 keV or more . ( 3 ) A reflected component is present in almost all the sources ( 17 out of 21 ) . The small variations of this component with respect to the intrinsic continuum , in objects with multiple observations , suggests that the reflector is not the accretion disk , but must be located much farther from the nucleus . ( 4 ) The range of ratios between the reflected and intrinsic components suggests that the circumnuclear medium is not homogeneous , and a significant fraction of the solid angle is covered by a gas thicker than that along the line of sight . ( 5 ) The iron K \alpha line is present is all but one the sources . The equivalent width is in the typical range of Seyfert 1s ( EW=100-300 eV ) in sources with low absorption ( N _ { H } < 3 \times 10 ^ { 23 } cm ^ { -2 } ) , and increases in more absorbed objects , as expected according to unified models . ( 6 ) The energy resolution of BeppoSAX is in general too low to measure the iron line width . However , in 6 cases we measured a significant line broadening .