Flawless Weld round nuts have standard sizes and measurements to make sure they work with other parts and perform well. Important measurements include the thread size—like M8 or 1/4"-20—the diameter of the little pilot tab, the overall width of the nut, and its height.
The importance of these precise measurements is self-evident. The core reason is that they are the key basis for engineers to determine the size of the workpiece opening.They also make sure there's enough material around where the weld goes to handle the weight it's supposed to hold without breaking.
Mon | M4 | M5 | M6 | M8 | M10 | M12 |
P | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 |
d1 max | 10.9 | 11.9 | 13.3 | 17.9 | 19.9 | 22.7 |
d1 min | 10.5 | 11.5 | 12.9 | 17.5 | 19.5 | 22.3 |
d0 max | 2.8 | 2.8 | 3.2 | 4.3 | 4.3 | 5 |
d0 max | 2.5 | 2.5 | 2.9 | 4 | 4 | 4.7 |
d2 max | 0.95 | 0.95 | 1.5 | 2.1 | 2.1 | 2.5 |
d2 min | 0.65 | 0.65 | 1.2 | 1.8 | 1.8 | 2.2 |
dk max | 13.7 | 14.7 | 16.5 | 22.2 | 24.2 | 27.7 |
dk min | 13.3 | 14.3 | 16.1 | 21.8 | 23.8 | 27.3 |
h max | 1.35 | 1.35 | 1.55 | 2 | 2 | 2.5 |
h min | 1.1 | 1.1 | 1.3 | 1.75 | 1.75 | 2.25 |
h1 max | 0.85 | 0.85 | 1 | 1.5 | 1.5 | 2 |
h1 min | 0.65 | 0.65 | 0.75 | 1.19 | 1.19 | 1.78 |
k max | 4.45 | 4.7 | 5.2 | 6.8 | 8.4 | 10.8 |
k min | 4.15 | 4.4 | 4.9 | 6.44 | 8.04 | 10.37 |
Good Flawless Weld round nuts are made following strict quality rules. That means checking the material makeup, how hard they are, and if the threads are accurate—really carefully. They also test how well they weld, to make sure they work the same every time you install them.
Good manufacturers follow international standards and give certifications. These prove the nuts will work like they should in whatever they’re used for. That’s especially important for parts that affect safety.
We have different ways to treat the surface of our Flawless Weld round nuts. Common ones are zinc plating—either blue/clear or yellow chromate—black oxide coating, and geomet coating. For stainless steel nuts, they usually come in their natural color (passivated) to resist rust on their own.