What grade of bolt is stronger 5 or 8?

Could you please clarify which aspect of the bolts you're referring to when asking about the strength between a grade 5 and grade 8 bolt? Strength can be measured in terms of tensile strength, shear strength, or other factors. In general, a grade 8 bolt is typically stronger than a grade 5 bolt, as it has a higher tensile strength rating. However, the specific application and requirements of your project should also be considered when selecting the appropriate bolt grade. Can you provide more context or details about your specific needs?