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18-8 M4 M6 M8 M10 M12 A2-70 DIN557 M6 Stainless Steel 304 316 Lock Square Nut

Name: 18-8 M4 M6 M8 M10 M12 A2-70 DIN557 M6 Stainless Steel 304 316 Lock Square Nut
Availability: InStock

Nut Customizable Made in China

Nut made of carton steel and stainless steel — Type Square Head, Connection Common Bolt. MOQ 10 pieces, US$0.01 – 1.00/piece. QC & shipping by GoodsFromChina.

US$1.0010 – 999 pieces

US$0.101,000 – 9,999 pieces

US$0.0110,000+ pieces

Min. order: 10 pieces

Material: Carton Steel/Stainless Steel
Type: Square Head
Connection: Common Bolt
Head Style: Square
Standard: DIN, ANSI, GB, JIS, GOST, BSW
Grade: 4, 8, 10, 12, 304(A2), 316(A4)

At a glance

Product: 18-8 M4 M6 M8 M10 M12 A2-70 DIN557 M6 Stainless Steel 304 316 Lock…
Category: Nut
Price: US$0.01 – 1.00 / piece
Minimum order: 10 pieces
Origin: Shanghai, China
Customization: Available
Packaging: Plastic Bag+ Carton+Wood Pallet

Last updated October 17, 2026

Specifications

Customization	Available
Material	Carton Steel/Stainless Steel
Type	Square Head
Connection	Common Bolt
Head Style	Square
Standard	DIN, ANSI, GB, JIS, GOST, BSW
Grade	4, 8, 10, 12, 304(A2), 316(A4)
Transport Package	Plastic Bag+ Carton+Wood Pallet
Specification	M3-M100, 1/4-2"
Origin	Shanghai, China
Production Capacity	500 Tons/Month
Package Size	10.00cm * 10.00cm * 10.00cm
Package Gross Weight	1.000kg
Diameter	1/4"-2 1/2",M4-M64
Length	≤800mm or 30"
Thread	M,UNC,UNF
Finish	Plain,Black oxide, Zinc Plated(Clear/Blue/Yellow/Black), H.D.G, Nickel, Chrome,PTFE,Dacromet,Geomet,Magni,Zinc Nickel,Zinteck.
Packing	bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Equipments	Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector, Projector, Magnetic flaw detecter,Spectrometer
Supply Ability	1000 tons per month
MinimumOrder	according to customer demand
Trade Term	FOB/CIF/CFR/CNF/EXW/DDU/DDP
Payment	T/T, L/C, D/A , D/P ,West union,Paypal.etc
Market	Europe/South&north Amrica/East&South east Asia/Middle East/Australia and ect.
Professional	More than 10 years experience in fasteners industry Our Main market is North&South America and proficient in DIN/ASME/ASTM/IFI standard.
Our advantage	One-stop shopping; High quality; Competitive price; Timely delivery; Technical support; Supply Material and Test Reports; Samples for free
Notice	Please lets know the Size, quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us
All our processes strictly adhere to ISO9001	2008 procedures. We have strict quality control from producing to delivery.Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality , good at modern concept of management.
Standard parts	7-15days
Non-standard parts	15-25days

Square Bolt
Standard:	ASME/ANSI B 18.2.2, DIN557, DIN562
Diameter:	1/4"-2 1/2",M4-M64
Length:	≤800mm or 30"
Material:	Carbon Steel, Alloy Steel, Stainless Steel, Brass
Grade:	SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9;A2-70,A4-70,A4-80
Thread:	M,UNC,UNF
Finish:	Plain,Black oxide, Zinc Plated(Clear/Blue/Yellow/Black), H.D.G, Nickel, Chrome,PTFE,Dacromet,Geomet,Magni,Zinc Nickel,Zinteck.
Packing:	bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Application:	Structural Steel; Metal Buliding; Oil&Gas;Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating
Equipments:	Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector, Projector, Magnetic flaw detecter,Spectrometer
Supply Ability:	1000 tons per month
MinimumOrder:	according to customer demand
Trade Term:	FOB/CIF/CFR/CNF/EXW/DDU/DDP
Payment:	T/T, L/C, D/A , D/P ,West union,Paypal.etc
Market:	Europe/South&north Amrica/East&South east Asia/Middle East/Australia and ect.
Professional:	More than 10 years experience in fasteners industry Our Main market is North&South America and proficient in DIN/ASME/ASTM/IFI standard.
Our advantage:	One-stop shopping; High quality; Competitive price; Timely delivery; Technical support; Supply Material and Test Reports; Samples for free
Notice:	Please lets know the Size, quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us

Product details

18-8 M4 M6 M8 M10 M12 A2-70 DIN557 M6 Stainless Steel 304 316 Lock Square Nut is a nut product (square head) manufactured in China and available to buyers worldwide through the GoodsFromChina sourcing service.

Key features

Material: Carton Steel/Stainless Steel
Type: Square Head
Connection: Common Bolt
Head Style: Square
Standard: DIN, ANSI, GB, JIS, GOST, BSW
Grade: 4, 8, 10, 12, 304(A2), 316(A4)
Diameter: 1/4"-2 1/2",M4-M64
Length: ≤800mm or 30"

Finish

Plain,Black oxide, Zinc Plated(Clear/Blue/Yellow/Black), H.D.G, Nickel, Chrome,PTFE,Dacromet,Geomet,Magni,Zinc Nickel,Zinteck.

Equipments

Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector, Projector, Magnetic flaw detecter,Spectrometer

Professional

More than 10 years experience in fasteners industry Our Main market is North&South America and proficient in DIN/ASME/ASTM/IFI standard.

Our advantage

One-stop shopping; High quality; Competitive price; Timely delivery; Technical support; Supply Material and Test Reports; Samples for free

Ordering & packaging

Minimum order quantity is 10 pieces. Standard export packaging: Plastic Bag+ Carton+Wood Pallet. Every order can include a pre-shipment quality inspection and consolidated shipping by sea, air or express, including DDP delivery.

How we source this product for you

1
Send your inquiry
Choose options, quantity and requirements. No payment needed.
2
Get a factory quote
We confirm price, MOQ and lead time — and compare alternatives.
3
Production & inspection
We follow up production and inspect goods before shipment.
4
Delivered to your door
Sea, air or express with customs clearance and DDP options.

Express5–8 days

Air freight8–12 days

Sea freight25–40 days

DDPDuties included

Sourcing help for this product

Frequently asked questions

What is the minimum order quantity for 18-8 M4 M6 M8 M10 M12 A2-70 DIN557 M6 Stainless Steel 304?

The MOQ is 10 pieces. Smaller trial orders can sometimes be negotiated — tell us your quantity in the inquiry.

How much does 18-8 M4 M6 M8 M10 M12 A2-70 DIN557 M6 Stainless Steel 304 cost?

The listed factory price is US$0.01 – 1.00 per piece, depending on quantity (larger orders get lower tier prices). Your final quote includes our service fee and shipping options.

Can it be customized with my logo or specifications?

Yes. The manufacturer offers customization — logo printing, packaging, colors or modified specifications. Describe your requirements in the inquiry form.

How long does production and shipping take?

Typical production time is 15–45 days depending on quantity. Shipping to the US takes about 5–8 days by express, 8–12 days by air and 25–40 days by sea, with DDP door-to-door delivery available.

How do you check product quality?

We verify the manufacturer before ordering and can perform a pre-shipment inspection (AQL sampling) with a photo report before you pay the balance.