Qbh 15+ Years 300+ Furniture Industrial Steel Structure Construction Bridge Railway Ship Solar Panel Building Material Boat Automotive Auto Fastener Hardware

Min.Order: 1
Product origin: Jiaxing, Zhejiang, China
Infringement complaint: complaintComplaint
US$ 0.01

Description

Product Description

The company mainly produces high-strength fasteners business, bolts and nuts are the main, the main
standard are DIN/ANSI\ASME/JIS/UNI/ISO/AS/BS/GB and so on. The product massively applies in the

bridge\road\the petroleum pipeline facility\the wind power generation and steel structure project.
Carbon steel bolts mainly have 4.8, 5.8, 6.8, 8.8, 10.9, 12.9, nuts mainly have 4, 6, 8, 10, the main
material of stainless steel fastener is 201\304\316.

dimensions in mm
Thread dM5M6M8M10M12M16M20
SupplierQBH
P0,811,251,51,7522,5
bl < 125mm16182226303846
125 < l < 200mm22242832364452
l > 200mm--4145495765
dkmax.13,5516,5520,6524,6530,6538,846,8
min.12,4515,4519,3523,3529,3537,245,2
dsmax.56810121620
min.4,525,527,429,4211,315,319,16
fmax.4,14,65,66,68,7512,915,9
min.2,93,44,45,47,2511,114,1
kmax.3,33,884,885,386,958,9511,05
min.2,73,124,124,626,058,059,95
r1approx.10,712,61619,224,129,333,9
r2max.0,50,50,50,5111
r3max.0,750,91,21,51,82,43
vmax.5,486,488,5810,5812,716,720,84
min.4,525,527,429,4211,315,319,16


Dimensions

Nom. Dia. (d)M6M8M10M12M16M20
SupplierQBH
Thread Pitch11.251.51.7522.5
Thread Length (b)L < 125mm182226303846
125-200mm242832364452
L > 200mm-4145495765
dkMax.16.5520.6524.6530.6538.846.8
fMax.4.65.66.68.7512.915.9
kMax.3.884.885.386.958.9511.05
vMax.6.488.5810.5812.716.720.84
LWEIGHT IN KG/1000 PCS
166.90     
207.6013.8022.70   
258.5015.4025.20   
309.6017.0027.7045.70  
3510.7019.0030.2049.40  
4011.8021.0032.7053.10  
4512.9023.0035.8056.80  
5014.0025.0038.9061.20119.00 
5515.1026.9042.0065.60126.00 
6016.2028.9045.1070.00133.00 
6517.3030.9048.2074.40141.00 
7018.4032.9051.3078.80149.00247.00
8020.6036.8057.5087.00165.00272.00
9022.8040.8063.7096.00181.00297.00
10025.0044.8069.90105.00197.00322.00
11027.2048.8076.10114.00213.00347.00
12029.4052.8082.30123.00229.00372.00
13031.6056.8088.50132.00245.00397.00
14032.8060.8095.00141.00261.00422.00
15035.0064.80101.00150.00277.00447.00
160  107.00159.00293.00497.00
180  119.00177.00325.00547.00
200  131.00195.00357.00597.00

Class4.8 Class5.8 Class6.8 Class8.8 Class10.9 Class12.9
NO.Mechanical or
physical property
Property class 
4.64.85.65.86.88.89.810.912.9/12.9 
D≤16mmad>16mmbd≤16mm 
SupplierQBH 
1Tensile strength
Rm,Mpa
nom.c40050060080090010001200 
max.40042050052060080083090010401220 
2Lower yield strength
ReL,Mpa
nom.c240--300-------------- 
max.240--300-------------- 
3Stress at 0,2 % nonproportional elongation
Rp0.2,Mpa
nom.c----------6406407209001080 
max.----------6406607209401100 
4Stress at 0,0048 d non-proportional elongation for
full-size fasteners
Rpf,Mpa
nom.c--320--400480---------- 
max.--340e--420e480e---------- 
5Stress under proof load
Spf,Mpa
nom.225310280380440580600650830970 
Proof Sp,nom/ReL min Or
strength Sp,nom/Rp0.2min Or
rati Sp,nom/Rpf min
0.940.910.930.90.920.910.910.90.880.88 
6Percentage elongation
after fracture for
machined test pieces,A,%
min.22--20----12121098 
7Percentage reduction of area after
fracture for machined test pieces,Z,%
min.--52484844 
8Elongation after fracture for full-size
fasteners,Af
min.--0.24--0.220.2---------- 
9Head soundnessNo fracture 
10Vickers hardness, HV,
F≥98N
min.120130155160190250255290320385 
max.220g250320335360380435 
11Brinell hardness, HBW
,F=30D²
min.114124147152181238242276304366 
max.209g238304318342361414 
SupplierQBH 
12Rockwell hardness,HRB ,
HRB
min.6771798289  
max.95g99.5  
Rockwell hardness,
HRC
min.--2223283239 
max.--3234373944 
13Surface hardness
HV 0.3
max.--hh,jh,j 
14Height of non-decarburized thread zone,E,mmmin.--1/2H12/3H13/4H1 
Depth of complete decarburization in the thread,G,mmmax.--0.015 
15Reduction of hardness after retempering,HVmax.--20 
16Breaking torque,
MB,N·m
min.--in accordance with ISO 898-7 
17Impact strength,
KVK,I,J
min.--27--27272727m 
18Surface integrity in accordance withISO 6157-1nISO 6157-3 
a Values do not apply for structural bolting.
b For structural bolting d W M12.
c Nominal values are specified only for the purpose of the designation system for property classes.See Clause 5.
d In cases where the lower yield strength ReL cannot be determined, it is permissible to measure the stress at 0,2 % non-proportional elongation Rp0,2.
e For the property classes 4.8, 5.8 and 6.8 the values for Rpf min are under investigation. The present values are given for calculation of the proof stress ratio only. They are not test values.
f Proof loads are specified in Tables 5 and 7.
g Hardness determined at the end of a fastener shall be 250 HV, 238 HB or 99,5 HRB maximum.
h Surface hardness shall not be more than 30 Vickers points above the measured core hardness of the fastener when determination of both surface hardness and core hardness are carried out with HV 0,3.
i Any increase in hardness at the surface which indicates that the surface hardness exceeds 390 HV is not acceptable.
j Any increase in hardness at the surface which indicates that the surface hardness exceeds 435 HV is not acceptable.
k Values are determined at a test temperature of −20 °C, see 9.14.
l Applies to d W 16 mm. m Value for KV is under investigation.
n Instead of ISO 6157-1, ISO 6157-3 may apply by agreement between the manufacturer and the purchaser.
 
 

Materials and Chemical Compstition
QBH 1008
CHEMICAL COMPOSI %
CSiMnPSCrNiCuAl
0.060.060.330.0130.0030.0100.010.028


QBH 1035
CHEMICAL COMPOSI %
CSiMnPSCrNiCu
0.340.130.730.0120.0020.020.010.02


QBH 10B21
CHEMICAL COMPOSI %
CSiMnPSCrB
0.20.040.810.0170.0070.0170.0021


QBH 1045
CHEMICAL COMPOSI %
CSiMnPSCrNiCu
0.450.230.580.0140.0060.0570.0080.016

QBH 40CR
CHEMICAL COMPOSI %
CSiMnPSCrNiCu
0.40.210.540.0150.0080.950.020.02

QBH 35CRMO
CHEMICAL COMPOSI %
CSiMnPSCrNiCuMo
0.350.220.590.010.0030.930.010.010.21


QBH 42CRMO
CHEMICAL COMPOSI %
CSiMnPSCrNiCuMo
0.420.270.920.0130.0041.010.030.040.2

 

More Details

The image displayed is a representation of the product. Product dimensions, finish, head type, and
thread length may differ from picture. Products are guaranteed to meet the specification to which
they are manufactured. Please email us with any questions.



Solar Panel Bracket Fasteners

 

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Steel Structure Fasteners


Package & Certifications

Our Services

Professional Manufacturer: All of our Fastener are designed and manufactured according to buyers' 
specification and performance.

Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.
Cost effective: Competitive prices with professional factory supply
Perfect fastening solution with 15+ years experiences to solve your problem: Wide range of parts selection.
Customized Ideal Fasteners: customized services according to the samples and drawings offered.

Free Samples for Standard Fastener from Jiaxing City Qunbang Hardware
 We Promise:
1.High quality
2. Competitive price
3. The shortest delivery
4. The fastest response
5. The best service


FAQ
1.What's your experience like?

Our general manager has been engaged in the export of fasteners since 2005. 
Our team can provide you with professional fasteners selling and smooth export services.

2.How about your price?
High quality products with reasonable price. Please give me a inquire, We will quoted you a price for you 
refer at once.


3. How do you control your quality?
We require the quality control department to inspect every production link of each shipment. And we can provide you MTC and mill certificate when the goods is finished.

4.How about your delivery time?
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let factory priority produce 
your goods.


5.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' 
requirement.


6.What is your payment term?
We can accept T/T,LC for general order ,Paypal and Western union for small order or samples order. 



Awaiting for your kind inquiry! Thanks & best regards!
For more information:  http://qbfastener.en.made-in-china.com

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