stainless bolts
Stainless steel is steel with nickel added to create a stainless alloy.The amount of nickel can vary and give different amounts of corrosion resistance.The strength will depend on the parent steel...if it is high carbon with nickel added the bolt will be very strong.If it is mild steel with nickel added it will be as strong as mild steel...nickel is not overly strong or hard.
the strength of the bolt will be indicated on the head...3 ticks would be grade 5,5 ticks would be grade 8 (aircraft quality)
anything with an allen head is grade 8.