Black M72 Class8 High Strength Nuts Thread Nuts DIN 555

• Material: Carbon Steel
• Type: Hexagon Head
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, ANSI, GB, JIS, GOST, BSW, ISO Uni
• Grade: 8.8
• Model NO.: DIN555 - M72 - Cl. 8 - Black
• Material Name: C45/ 40cr/35CrMo/42CrMo
• Transport Package: Pallet+Carton
• 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,  
Specializing in the production of nuts since 1985,
Standard nuts (GB/DIN/ISO/UNI/JIS/GOST/ANSI/ASTM);
Special nuts (slotted nuts, nylon insert nuts, flange nuts, self-locking nuts, square nuts, cap nuts, etc.)
 

Product Description

 

  DIN 555 - M72 -Class8 - Black oxide 

( samples with surface treatment of Black oxide )

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 ♦Zinc Plated ♦Black Oxide ♦Phosphate ♦Dacromet ♦Geomet

P.S.:  Please contact us to re-quote the exact price before placing an order, due to material price is unstable.

 

d	M24	M27	M30	M33	M36	M39	M42	M45	M48
P	3	3	3.5	3.5	4	4	4.5	4.5	5
dw	33.2	38	42.7	46.5	51.1	55.9	59.9	64.7	69.4
e min	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6
m	17.95-20.05	20.95-23.05	22.95-25.05	24.95-27.05	27.95-30.05	29.75-32.25	32.75-35.25	34.75-37.25	36.75-39.25
mw min	14.4	16.8	18.4	20	22.4	23.8	26.2	27.8	29.4
s	35-36	40-41	45-46	49-50	53.8-55	58.8-60	63.1-65	68.1-70	73.1-75

 

d	M52	M56	M60	M64	M72	M80	M90	M100
P	5	5.5	6	6	6	6	6	6
dw	72.4	78.7	83.4	88.2	97.7	107.2	121.1	135.4
e min	88.25	93.56	99.23	104.86	116.16	127.46	144.08	161.02
m	43.25-40.75	46.25-43.75	49.25-46.75	52.5-49.5	59.5-56.5	65.5-62.5	73.5-70.5	80.5-78.5
mw min	32.6	35	37.4	39.6	45.2	50	56.4	62.8
s	78.1-80	82.8-85	87.8-90	92.8-95	102.8-105	112.8-115	127.5-130	142.5-145

 

Detailed Photos

 

 

 

Picture of mass production before packing.
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Company Profile

 

  Our Factory Introduction

 

    WHO WE ARE

With over 38 years of manufacturing experience, Tagong is an expert in the manufacturing of standard and special fasteners.
Founded in 1985, we have established an advanced manufacturing factory covering an area of 60,000 square meters in Jinjiang City. 
With a production system that combines forging and high-precision machining, a professional production management team, and a senior technical R&D department, we can according to the customer's unique specifications and drawings produce special fasteners.
Our products have passed ISO9001/2015, GB/T19001-2016, and SGS certificate testing and certification.
Our passion for excellence has driven us to become a global supplier. Our products have been exported to Europe, Australia, North America, South Asia, and other places, and are well received by customers.

 

Certifications

   Development History

  Production Workshop