Battery pack retention calculation options

Pack weights: 75kg each

NEDRA section 8.1: Mounts must withstand: 8 x weight horizontally = 600kg = 1323 lb 4 x weight vertically = 300kg = 662 lb

Using NEDRA table data:

IF use 3/8" bolts (10mm closest metric equivalent) THEN each bolt takes 60.4 lb THEREFORE 1323 / 60.4 = 22 bolts

IF use 7/16" bolts (11.50mm closest metric equivalent) THEN each bolt takes 82.6 lb THEREFORE 1323 / 82.6 = 16 bolts

IF use 1/2" bolts (13mm closest metric equivalent) THEN each bolt takes 111 lb THEREFORE 1323 / 111 = 12 bolts

IF use 9/16" bolts (14.5mm closest metric equivalent) THEN each bolt takes 141.8 lb THEREFORE 1323 / 141.8 = 10 bolts