The new Tevo Little Monster kits come with textured glass surfaces for the heat bed. I don't like them and looking for an alternative solution. I opted to go with a 3/8" x 16" tempered glass table top. You will need longer bolts (M5x30) if you mount to the frame. I didn't, I opted to use 3 compression strings and locking nuts under each bracket (why there are only 3 brackets).
Only difference between V1 & V2 is the chamfered edge on top is less with V2 cause I was experiencing a LOT of curly when printing with ABS and ASA so I figured lessening the chamfer may help.
The hole is slotted in case the diameter of your top isn't a true 16".
I printed with 4 top/bottom/outer shells out of Fillamentum Traffic Black ASA. I don't think PLA would be wise if you print anything with 100C bed temps.
Just in case you need to make some modifications to fit your application, here's a link to the bracket in Fusion 360.