What the vesa size 300x 200 ? - Sony BRAVIA KDL-40V3000 Television

METRIC,THE VESA SPEC IS IN THE WIKI
M4 FOR MOST, ALL ARE HERE
SEE. 75 OR 100MM PATTERN

https://en.wikipedia.org/wiki/Flat_Display_Mounting_Interface

VESA Specifications
VESA STANDARD HOLE PATTERN SCREW SIZE MONITOR WEIGHT SCREEN SIZE FDMI MIS-B 50 x 20 mm M4 x 6 mm ? 4.4 lbs / ? 2 kg 4" to 7.9" FDMI MIS-C 75 x 35 mm M4 x 8 mm ? 10 lbs / ? 4.5 kg 8" to 11.9" FDMI MIS-D 75 x 75 or 100 x 100 mm M4 x 10 mm ? 30.8 lbs / ? 14 kg 12" to 23.9" FDMI MIS-E 200 x 100 mm M4 x 10 mm ? 50 lbs / ? 23.7 kg 24" to 30.9" FDMI MIS-F 200 mm increments M6 x 8 mm or 10 mm;
M8 x 15 mm ? 250 lbs / ? 113.6 kg

Woa!! You must use a wall mount bracket to do this. You just don't drill holes in the wall and then try to mount. Good wall mounts are not expensive (WalMart has a good supply of various sizes.) Here is a You Tube video with more information on wall mounting tvs. https://www.youtube.com/watch?v=YdbWKDW4xa0

A VESA sizes are 200 x 200 should work for 32 inch tv . Hope it helps

VESA® Hole Pitch: 200 x 200 hole pattern / M6 thread size / 14mm hole depth

1/3" x 3

The 3 most common sizes for the bolts to mount the wall mount to the TV is either M8x20mm or M6x20mm or M4x20 depends on the size of the screen. This site has a chart that will show you what to look for, for your TV M6x20mm TV to Wall Mount Bracket Phillips Bolts Screws Stainless VESA 200

Different makers use different numbers and types of screws.
There is no 'VESA' screw as far as I know.

the TV will mount to the wall via the VESA screw mounts on the back of the LCD. If it is a smaller, monitor sized LCD then the screw pattern will be either 75x75mm or 100x100mm. On larger TVs is it usually 100x200mm. Sometimes the base is screwed into this mount and othertimes to the bottom. Simply unscrew it from the screen. Be sure that the wall mounting kit can handle your LCDs VESA screw pattern, screen size and screen weight.