Class 8 Steel Hexagon Nut

For industrial assembly and equipment maintenance, China prefessional supplier Xiaoguo® Class 8 steel hexagon nuts offer steady quality and reliable load capacity.Their standard design works with common bolts and fits the needs of most production lines.As a reliable supplier, we welcome your cooperation. Our factory in China provides stable deliveries and practical sourcing options for Grade 8 steel hex nuts.

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Product Description

Advantages of product installation and use

（1）Easy Installation with Common Tools

2.You can install this Class 8 Steel Hexagon Nut with regular hand tools or power wrenches. No special equipment is needed for daily use. Its standard hexagonal shape fits common wrench sizes well, so workers can grip and tighten it without slipping during assembly.

（2）Smooth Threads for Efficient Assembly

The thread follows common industrial tolerances, so it threads onto matching bolts smoothly. It does not jam or require forced turning, which helps speed up work on site and on production lines.

（3）Stable & Secure Under Vibration

Once installed, it stays tight and secure, even on equipment or structures with regular vibration. The grade 8 steel material provides enough strength for medium to heavy load jobs. It does not easily loosen or deform under normal working pressure. For basic fastening, you do not need extra lock washers or other parts, which reduces components and simplifies installation.

（4）Simple Maintenance & Reusability

During routine maintenance and part replacement, this nut is easy to remove and reuse if needed. The threads do not get damaged under normal tightening and loosening. Consistent size and structure mean replacement parts fit directly, with no adjustments or modifications required. It works well for long-term use in machinery, construction, and automotive repair, and holds up under repeated use.

Class 8 Steel Hexagon Nut

Product anti-slip, anti-loosening and wear-resistant performance

Class 8 Steel Hexagon Nut offers solid anti-slip performance. The threads inside are made to fit the bolt tightly, with no extra space. When you use a wrench to tighten it, the six-sided shape gives a solid grip. The surface stays smooth and even, so the threads don’t strip or slide easily when you pull. It stays in place during installation and regular use, without shifting around.

This nut has a good handle on anti-loosening. Thanks to the hardened steel material, it doesn’t bend or break easily under normal vibration. The tight thread connection creates enough friction to stop it from turning on its own. You won’t need to add extra parts to keep it in place in most basic situations. It stays tight for a long time with regular use.

When it comes to wear resistance, Class 8 Steel Hexagon Nut delivers. The hardened steel surface can handle rubbing from putting it on and taking it off. The threads don’t wear down fast after many uses, and the edges stay intact. Even with some dust or minor contact with other metal, it keeps its shape normally. You won’t have to replace it often because of normal wear.

Class 8 Steel Hexagon Nut

Mon	M36	M39	M42	M45	M48	M52	M56	M64	M72	M76	M90
P	1.5\|213\|4	1.5\|213\|4	1.5\|2\|3\|4\|4.5	1.5\|213\|44.5	1.5\|213\|415	1.5\|213\|415	1.5\|213\|45.5	1.5\|2\|3\|4\|6	1.5\|213\|416	1.5\|213\|416	2\|3\|4\|6
da max	38.9	42.1	45.4	48.6	51.8	56.2	60.5	69.1	77.8	82.1	97.2
da min	36	39	42	45	48	52	56	64	72	76	90
e min	65.86	70.67	70.67	76.27	81.87	87.47	92.74	103.94	115.14	120.74	142.8
k max	31	33.4	34	36	38	42	45	51	58	61	72
k min	29.4	31.8	32.4	34.4	36.4	40.4	43.4	49.1	56.8	59.8	69.8
s max	60	65	65	70	75	80	85	95	105	110	130
s min	58.8	63.1	63.1	68.1	73.1	78.1	82.8	92.8	102.8	107.8	127.5

Q&A session

What surface finishes are available for this Class 8 Steel Hexagon Nut?

Common finishes include plain uncoated, zinc plated, and hot dip galvanized options. Different finishes are used to meet various environmental and anti‑corrosion demands. Zinc plating offers basic protection for general indoor and outdoor use. Hot dip galvanized nuts perform better in high humidity or mildly corrosive environments. You can choose the finish according to your working environment and project requirements.