Dome Hex Nut

Product size specifications：

（1）Common Thread Sizes

We have different sizes of dome hex nuts for you to pick, whatever you need. The main thing that matters is the thread size—it has to match your bolts. The common thread sizes we have are M4, M5, M6, M8, and M10. These are the ones people use most often, whether for daily use or industrial work.

（2）Hex Head Size Details

Besides the thread size, the hex head (the part you twist with a tool) also comes in different sizes. The hex head’s size goes with the thread size—like, if you have an M6 nut, the hex head will fit a standard 10mm wrench. You don’t need any special tools; just use the regular wrench you have, and it’ll work fine.

（3）Dome Height Specifications

The height of the dome part is another key size. It’s taller than the hex head part, and the height depends on the overall size of the Dome Hex nut. For small thread sizes like M4, the dome height is about 5mm; for larger sizes like M10, it’s around 12mm. This height is designed to cover the bolt thread completely.

（4）Custom Size Option

If you need a specific size that’s not in the common range, just tell us the exact thread size, hex head size, and dome height. We can provide custom sizes as well. All our size measurements are accurate, so you don’t have to worry about mismatching with your bolts. Just confirm your bolt size, and we’ll recommend the right nut for you.

Q&A session：

Q: Can Dome Hex nut be reused after disassembly?

A: Yeah, it works. If the  nut isn’t broken, the threads are still good, and it’s not bent, you can use it again. When you take it off, don’t yank too hard—you don’t want to mess up the threads. When you put it back on, just tighten it good so it doesn’t come loose later. This way, you don’t have to buy new ones every time, so you save some money.

Mon	M4	M5	M6	M8	M10	M12	M14	M16	M18	M20	M22
P	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5
e min	7.66	8.79	11.05	14.38	17.77	20.03	23.55	26.75	29.56	32.95	37.29
h max	8	10	12	15	18	22	25	28	32	34	39
h min	7.64	9.64	11.57	14.57	17.57	21.48	24.48	27.48	31	33	38
k max	3.2	4	5	6.5	8	10	11	13	15	16	18
k min	2.9	3.7	4.7	6.14	7.64	9.64	10.3	12.3	14.3	14.9	16.9
s max	7	8	10	13	16	18	21	24	27	30	34
s min	6.78	7.78	9.78	12.73	15.73	17.73	20.67	23.67	26.16	29.16	33
t max	5.74	7.79	8.29	11.35	13.35	16.35	18.35	21.42	25.42	26.42	29.42
t min	5.26	7.21	7.71	10.65	12.65	15.65	17.65	20.58	24.58	25.58	28.58

Product factory inspection items: