China Manufacturer Supplies Stainless Steel Self-Locking Nut M3-M18

• Material: Stainless Steel
• Type: Hexagon Head
• Connection: Common Bolt
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: UNF-15
• Head Style: Hexagonal
• Standard: DIN, ANSI, GB, JIS, GOST, BSW
• Grade: 8.8
• Delivery: Sea Freight, Air, Train, Express
• Certification: ISO9001, BSCI
• Sample: Yes
• ODM/OEM: Accept
• Transport Package: Carton Boxes + Pallets
• Specification: M3-M18
• Trademark: UN
• Origin: China
• HS Code: 731829000
• Production Capacity: 700tons/Month

Product Description

Our Advantages

 

Product Description

Union Stainless Steel Lock Nuts

Name

Lock Nuts

Material

Stainless Steel

Size

M3-M18 or non-standard as request&design

Surface Treatment

Plain, Passivation, Polishing, Customized

OEM

Made in China

Lead Time

Based on quantity

 

Stainless Steel Chemical Composition
Grade	C  ≤	Si  ≤	Mn  ≤	P  ≤	S  ≤	Ni	Cr	Mo	Other
201	0.15	1.00	5.5-7.5	0.060	0.03	3.5-5.5	16-18		N≤0.25
304	0.08	1.00	2.00	0.045	0.03	8.0-10.0	18-20
304L	0.03	1.00	2.00	0.045	0.03	8.0-12.0	18-20
321	0.08	1.00	2.00	0.045	0.03	8.0-13.0	17-19		Ti≤5*C%
316	0.08	1.00	2.00	0.045	0.03	10.0-14.0	16-18	2-3
316L	0.03	1.00	2.00	0.045	0.03	10.0-15.0	16-18	2-3
309S	0.08	1.00	2.00	0.045	0.03	12.0-15.0	22-24
410	0.15		1.00		0.03	-	11.5-13.5
420	0.26-0.4		1.00		0.03	-	12-14
430	0.12	0.75	1.00	0.040	0.03	-	16-18

 

Main Fastener Coating
Types	Application	Spray Test Hours	Characteristics
Zinc, Electroplated	All Metal	96Hours	Lower cost and bright surface
Hot Dip Galvanized	All Metal	96Hours	Low corrosion rate and resists mechanical damage.
Electro Nickel	All Metal	200Hours	Flexibility in plating volume and thickness
Mechanical Plating	Steel	1000Hours	Smooth finish with high anti-corrosion grade
Black Oxide	All Metal	3-5Hours	Cheap
Dacrotized	Steel	1000Hours	Pollution-free ceramic coating
Passivation	Stainless Steel	/	Dissolved iron contaminants
Wax	Stainless Steel & Plated Fasteners	Fair, used as a lubricate	Used for ease of assembly

 

Stainless Steel Nuts

are a vital mechanical fastener used in countless applications to securely join bolts, screws, rods, and other threaded parts. Though often overlooked, nuts play an indispensable role in creating safe, reliable, and durable connections in everything from machinery to structural buildings.

Nuts come in a variety of styles and designs:
Hex nuts: Six-sided symmetrical shape for wrench gripping with maximum torque transfer. The most common type.
Wing nuts: Flanged edges provide finger grip for hand tightening in temporary applications.
Flange nuts: Larger flange base allows use in thin materials and provides an integrated washer.
Lock nuts: Nylon insert or deformed threads prevent loosening from vibration. Used for securing adjustable parts.
Cap nuts: Low profile cap shape allows flush fastening against surfaces.

Choosing the optimal nut requires evaluating:
Strength,Corrosion Resistance,Machine Thread Fit,Locking Ability,Cost.

Benefits of Proper Nut Use
Load Distribution: Nuts properly distribute load across threads, preventing damage.
Custom Fastening Force: Nut tightening allows adjustable clamping force for specific needs.
Reliable Service Life: Appropriate nut selection and tightening ensures durable, long-lasting connections.
Safety: Secure nut tightening prevents dangerous loose parts in critical systems.

In summary, often overlooked nuts serve an invaluable role as fasteners across endless applications. With careful selection of size, style and material based on engineering requirements, nuts provide safe, reliable and durable functionality.

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