Just a heads up, the bolts seat jackers supplied (me) are non flanged hex head -bit unhappy about bolts compared to the quality of the jackers themselves which are well made. The supplied bolt heads will limit the forward movement of the seat which will only affect short people really, or those needing to move the seat forward for clearance. They do mention this clearly on their website.
I've ordered a low profile head replacement from bolt supplier and will edit this if they clear the seat rails. Supplied Bolt size is M10-1.25 x50mm (10.9 strength & fine thread) for double stack installation.
Edit: i have LC LC premium pkg leather electric seats. Bolts i want in 10.9 are more difficult to find than anticipated.
2nd Edit: i found bolts that clear the seat rails but they are not the correct grade. I'll use these until i can find the Grade 8 (10.9) equivalent. Found this which is 10.9 strength:
M10X1.25 Fine Allen Button Head 12.9 + 10.9 ISO 7380-1