OEM Black Oxide Carbon Steel Hex Nuts Square Nuts DIN557

• Material: Carbon Steel
• Type: Hexagon Head
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, ANSI, GB, JIS, GOST, BSW, ISO Uni
• Grade: 10.9
• Material Name: 40cr/45/42CrMo/35CrMo
• Property Class: Class10
• Surface Treatment: Black Oxide
• Transport Package: Carton+Pallet
• Specification: 25kg/carton
• Trademark: as requested by buyer
• Origin: China
• HS Code: 73181600
• Production Capacity: 1500tons/Month

Product Description

Jinjiang Tagong Hardware Forging Manufacturer Co. LTD,  
 specialized in producing Nuts since 1985,
Standard Nuts (GB / DIN / ISO / UNI / JIS / GOST / ANSI / ASTM );
And Special Nuts ( Slotted nuts,Nylon insert nuts,Flange Nuts,Self-hold Nuts,Square Nuts,Cap Nuts,etc.)
 

Square Nut- DIN557--Black Oxide

 
 (samples with surface treatment of  Black Oxide)

DIN557-M10
Thread Size	dwmin	e min	m min	mw min	s
M10	15.5	21.54	7.42	5.5	16.57-17

Any specific specifications can be provided according to customers' requirements

Materrial and surface teatment can be replaced with as below:

Mechnical Property	Material	Surface Treatment
Class 6 / 8/ 10 /12	C45 40Cr 35CrMo 42CrMo	♦Plain+Oil ♦HDG ♦Black oxide ♦Phosphate ♦Dacromet ♦Geomet

 Packing way: 25kg/carton, 1.5tons-2.5tons / pallet ; or as requested by buyer.


 

 

 

P.S.:  Please contact us to re-quote the exact price

 

 

 

These are some photos of the  exhibitions.


 

  Other  Nuts

 

 

Click on the image to see the details.

If you have your own specipal dasign,Pls contact us.

 

 

  Our Factory Introduction

 

                                    WHO WE ARE
                                    With over 35 years of experience,Tagong is the expert in the manufacturing standard fasteners and special fasteners.
                                    Our passion for excellence has driven us to become a globe supplier.Our products have been export to Europe,
                                    Australia,North America and South Asia.Well received by customer.
                                    Established in 1985,our 60,000 square meters state-of-the-art manufacturing facility founded in Jinjiang City has a large
                                    capacity to produce specialty fasteners to our customer's unique specifications,and drawings.We have and integrated
                                    process of hot forging.It introduced advanced producing and inspection equipments .
                                    Certificated with ISO9001/2015, GB/T19001-2016,and SGS certificate test.

                                    Development History
 

 

                                    Production Workshop