Roll in spring Nut M8 for 40C Series-8mm T slot profile

Anybody have a general chart listing the tightening specs for cast iron T-Slots? If a hold-down kit uses Grade 8 studs and nuts,

T-Slot Nuts can be inserted from the end of the extrusion, or rolled into place anywhere along the profile The nice little spring clip holds them in place

m8 slot In this video I have explained the Insert Nuts and their types I have also demonstrated the

m88 slot asia M8×1), which I used for my old self-made milling machine, you don't have to slot nuts from brass according to fig 64 Pieces of leftover