Heavy-Duty M8 Hardware Set: 4 Bolt Variations & 3 Matching Nut Styles
This set features four bolt variations—two at 16 mm and two at 21 mm—all with a 8 mm diameter, accompanied by three matching nut styles. Designed for efficiency, the entire 7-piece set prints in approximately 27 minutes, without the need for supports.
I have extensively tested these, in various PLA blends across multiple applications, with great success. For projects requiring extra durability, I recommend printing in PETG, and/or with increased wall counts or higher infill percentages.
I hope these prove useful for your next project!