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Hexagon Slotted Castle Nut

China supplier Xiaoguo® Hexagon Slotted Castle Nut has slots that are cut clean, so it holds well without loosening under vibration or load. The material is decent—strong enough for automotive, machinery, and construction work. If you need a quote, just ask. You can buy discount Hexagon Slotted Castle Nut in bulk—rates are fair and delivery runs on time.

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Product Description

Product customization service

（1）Customization Options

We offer custom services for Hexagon Slotted Castle Nut to match your actual working needs. You can tell us your required size, material grade, and surface treatment, and we will adjust the production accordingly. We work with common industrial materials, so you can choose based on your application environment, whether it’s for regular equipment or projects that need higher strength.

（2）Design & Order Flexibility

If you have special demands for thread standards or slot dimensions, we can modify the design within our production capacity. Small-batch customization is supported for testing and trial use, while large orders can get more flexible arrangements. Our team will check the drawings and parameters you provide to make sure the finished products fit your assembly structure.

（3）Lead Time & Service Process

Lead time depends on the complexity of your customization and order quantity. We will give you a clear schedule once we confirm all details. We focus on practical performance and stable quality instead of overstated features. You can send your specific needs to us, and we will provide a reasonable plan and quotation for your customized fasteners.

Hexagon Slotted Castle Nut

Product material characteristics and applications

Product Name	Xiaoguo® Hexagon Slotted Castle Nut
Material Options	Carbon steel (Grade 8 or Grade 10)High strength, capable of withstanding large torquesSurface has a zinc coating or black oxide layer - for preventing rustingSuitable for general assembly or automotive repair work
Material Options	Stainless steel (304 / 316)In humid environments, with salt content or outdoor exposure304 can be used in most humid environments316 is suitable for environments exposed to seawater or chemical substancesThe price is slightly higher, but it can prevent future corrosion problems
Key Feature	These slots at the top are used to place the locking pins or safety ropes.Once you tighten the nut, pass the pin through these slots and the holes on the bolt.This will fix it in place (even with strong vibrations, the nut will not loosen).This is a simple mechanical lock that doesn't require any complex coatings or additional components.
Typical Applications	This kind of nut is applicable in the suspension and steering components of vehicles.In mechanical devices with rotating parts, such as shafts or hubs.In agricultural equipment that operates for a long time.

Q&A session

What materials are this fastener made of, and are they suitable for outdoor use?

We make this Hexagon Slotted Castle Nut with two basic industrial materials — mild steel and stainless steel, both meet normal daily use standards. The mild steel ones have regular anti-rust surface treatment, and they work well for indoor machinery and equipment assembly. Stainless steel versions resist corrosion better, so they can handle light outdoor use and humid working conditions. We don’t use cheap or low-quality materials, and all our materials follow common industrial rules. They work fine for everyday assembly jobs, with no over-the-top or unnecessary performance features.

Hexagon Slotted Castle Nut

Mon	M5	M6	M8	M10	M12	M14	M16	M20	M24	M30	M36
P	0.8	1	1.25	1.5	1.75	2	2	1.5\|2\|2.5	15\|2\|3	1.5\|2\|3.5	15\|2\|3\|4
e min	8.79	11.05	14.38	17.77	20.03	23.36	26.75	32.95	39.55	50.85	60.79
k max	6.7	7.7	9.8	12.4	15.8	17.8	20.8	24	29.5	34.6	40
k min	6.4	7.34	9.44	11.97	15.37	17.37	20.28	23.16	28.66	33.6	39
n min	1.4	2	2.5	2.8	3.5	3.5	4.5	4.5	5.5	7	7
n max	2	2.6	3.1	3.4	4.25	4.25	5.7	5.7	6.7	8.5	8.5
s max	8	10	13	16	18	21	24	30	36	46	55
s min	7.78	9.78	12.73	15.73	17.73	20.67	23.67	29.16	35	45	53.8
w max	4.7	5.2	6.8	8.4	10.8	12.8	14.8	18	21.5	25.6	31
w min	4.4	4.9	6.44	8.04	10.37	12.37	14.37	17.37	20.88	24.98	30.38

How to prolong the service life?

To get decent service life out of a Hexagon Slotted Castle Nut, pick the right material. Zinc-coated carbon steel works for dry indoor use; stainless steel holds up better in damp or salty conditions. Corrosion eats into threads and slots, so coating matters.

Installation counts too. Use a cotter pin that fits the slot—too loose rattles, too tight can crack the edges. Don’t over-torque; that deforms threads or stretches the bolt. Stick with proper torque.

For a Hexagon Slotted Castle Nut, check slot edges for wear, especially under vibration. Swap out worn cotter pins. If the nut backs off, the pin might be loose or threads worn. Catching issues early saves bigger repairs.

If reusing, inspect threads and slots. Once edges deform or galling shows, replace it. Mixing old and new hardware can cause fit problems. Stick with consistent batches.