Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20

AdvantagesProduct DescriptionProduct DescriptionDIN 603 - Mushroom head square neck boltsCurrent norm: DIN 603Equivalent norms: ISO 8677; CSN 021319; PN 82406; UNI 5731;Product Parameters STYLECARRIAGE BOLTSSTANDARDDIN603Model No.QBH-C-DIN603-ZP,QBH-C-DIN603-HDGSupplierQBHSIZEM5-M20FINIISHPLAIN, BLACK,Z.P., Y.Z.P., H.D.G,.

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Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20
Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20

Product Description

Product Description

DIN 603 - Mushroom head square neck bolts

Current norm: DIN 603
Equivalent norms: ISO 8677; CSN 021319; PN 82406; UNI 5731;

Product Parameters
 
STYLECARRIAGE BOLTS
STANDARDDIN603
Model No.QBH-C-DIN603-ZP,
QBH-C-DIN603-HDG
SupplierQBH
SIZEM5-M20
FINIISHPLAIN, BLACK,Z.P., Y.Z.P., H.D.G,. dacromet, 
geomet, nickle plated, machanical zinc plated, ect.
CLASSCl.4.8/6.8
MATERIALLow carbon
PACKINGbulk/boxes in cartons, bulk in polybags /buckets, ect.
PALLETsolid wood pallet, plywood pallet, ton box/bag, ect.
 
Products nameRound Head Square Neck Carriage Bolt DIN603 Carbon Steel WZP
Standard:DIN,ASTM/ANSI JIS EN ISO,AS,GB
Model No.QBH-C-DIN603-ZP,
QBH-C-DIN603-HDG
SupplierQBH
MaterialStainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L,F593
Steel Grade: DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9;  SAE: Gr.2,5,8;  ASTM: 307A,307B,A325,A394,A490,A449,
FinishingZinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide,
Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated
Production
Process
M2-M24:Cold Froging,M24-M100 Hot Forging,
Machining and CNC for Customized fastener
Customized Products
Lead time
Busy season:15-30days,Slack seaon:10-15days
Stock ProductsSteel:4.8Grade DIN6923,8.8Grade 10.9Grade of GB5783 and GB5782
Stainless steel: All DIN Standard stainless steel Bolt
Free Samples for standard fastener
Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20

Legend:

b - length of the thread (at least)
l - length of bolt
d - the nominal diameter of the thread
k - head height
ds - diameter of the screw shank
dk - head diameter
f - height squared
v - width of the square
r1 - Head radius
lg - length of the shank to thread
ls - length of the shank to the start of the thread

Makings:

Steel: 4.8,5.8,8.8
Stainless: A2, A4
Thread: 6g

 

Notes:

 

Table according to DIN 603:

dimensions in mm
Thread dM5M6M8M10M12M16M20
Product NameDIN 603 Square Neck Round Head Carriage Bolt
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
Product NameDIN 603 Square Neck Round Head Carriage Bolt
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,mm
max.--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.
 
 

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
 
Detailed Photos

Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20
Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20
Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20
Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20
Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20
Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20

Certifications & Packaging


Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20Qbh Carriage Bolts DIN603 Cl. 4.8/6.8 M5-M20


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


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.


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