Specifications
Brand Name :
QBH
Model Number :
carriage bolt
Certification :
ISO9001
Place of Origin :
CHINA
MOQ :
900kg
Price :
Negotiation
Payment Terms :
L/C, T/T, Q/A
Supply Ability :
200TON/MONTH
Delivery Time :
30days
Packaging Details :
25kg Carton+900kg/Pallet
Material :
stainless steel 304 316
Grade :
12.9, 8.8, 4.8, Grade 5, 6.8
Surface treatment :
stainless steel
Advantage :
we can manufacture according to client design,OEM / ODM / customized service provided
Delivery time :
within 30days
Oem :
Welcome, According to your request, Accept
Standard :
DIN ANSI GB ISO JIS
Description

Product Description

Products name Round 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
Supplier QBH
Material Stainless 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,
Finishing Zinc(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 Products Steel:4.8Grade DIN6923,8.8Grade 10.9Grade of GB5783 and GB5782
Stainless steel: All DIN Standard stainless steel Bolt
Free Samples for standard fastener
SS316 Round Head Screw Anodization With Square Neck

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 d M5 M6 M8 M10 M12 M16 M20
Product Name DIN 603 Square Neck Round Head Carriage Bolt
Supplier QBH
P 0,8 1 1,25 1,5 1,75 2 2,5
b l < 125mm 16 18 22 26 30 38 46
125 < l < 200mm 22 24 28 32 36 44 52
l > 200mm - - 41 45 49 57 65
dk max. 13,55 16,55 20,65 24,65 30,65 38,8 46,8
min. 12,45 15,45 19,35 23,35 29,35 37,2 45,2
ds max. 5 6 8 10 12 16 20
min. 4,52 5,52 7,42 9,42 11,3 15,3 19,16
f max. 4,1 4,6 5,6 6,6 8,75 12,9 15,9
min. 2,9 3,4 4,4 5,4 7,25 11,1 14,1
k max. 3,3 3,88 4,88 5,38 6,95 8,95 11,05
min. 2,7 3,12 4,12 4,62 6,05 8,05 9,95
r1 approx. 10,7 12,6 16 19,2 24,1 29,3 33,9
r2 max. 0,5 0,5 0,5 0,5 1 1 1
r3 max. 0,75 0,9 1,2 1,5 1,8 2,4 3
v max. 5,48 6,48 8,58 10,58 12,7 16,7 20,84
min. 4,52 5,52 7,42 9,42 11,3 15,3 19,16


Dimensions

Nom. Dia. (d) M6 M8 M10 M12 M16 M20
Product Name DIN 603 Square Neck Round Head Carriage Bolt
Supplier QBH
Thread Pitch 1 1.25 1.5 1.75 2 2.5
Thread Length (b) L < 125mm 18 22 26 30 38 46
125-200mm 24 28 32 36 44 52
L > 200mm - 41 45 49 57 65
dk Max. 16.55 20.65 24.65 30.65 38.8 46.8
f Max. 4.6 5.6 6.6 8.75 12.9 15.9
k Max. 3.88 4.88 5.38 6.95 8.95 11.05
v Max. 6.48 8.58 10.58 12.7 16.7 20.84
L WEIGHT IN KG/1000 PCS
16 6.90
20 7.60 13.80 22.70
25 8.50 15.40 25.20
30 9.60 17.00 27.70 45.70
35 10.70 19.00 30.20 49.40
40 11.80 21.00 32.70 53.10
45 12.90 23.00 35.80 56.80
50 14.00 25.00 38.90 61.20 119.00
55 15.10 26.90 42.00 65.60 126.00
60 16.20 28.90 45.10 70.00 133.00
65 17.30 30.90 48.20 74.40 141.00
70 18.40 32.90 51.30 78.80 149.00 247.00
80 20.60 36.80 57.50 87.00 165.00 272.00
90 22.80 40.80 63.70 96.00 181.00 297.00
100 25.00 44.80 69.90 105.00 197.00 322.00
110 27.20 48.80 76.10 114.00 213.00 347.00
120 29.40 52.80 82.30 123.00 229.00 372.00
130 31.60 56.80 88.50 132.00 245.00 397.00
140 32.80 60.80 95.00 141.00 261.00 422.00
150 35.00 64.80 101.00 150.00 277.00 447.00
160 107.00 159.00 293.00 497.00
180 119.00 177.00 325.00 547.00
200 131.00 195.00 357.00 597.00

Class4.8 Class5.8 Class6.8 Class8.8 Class10.9 Class12.9
NO. Mechanical or
physical property
Property class
4.6 4.8 5.6 5.8 6.8 8.8 9.8 10.9 12.9/12.9
D≤16mma d>16mmb d≤16mm
Supplier QBH
1 Tensile strength
Rm,Mpa
nom.c 400 500 600 800 900 1000 1200
max. 400 420 500 520 600 800 830 900 1040 1220
2 Lower yield strength
ReL,Mpa
nom.c 240 -- 300 -- -- -- -- -- -- --
max. 240 -- 300 -- -- -- -- -- -- --
3 Stress at 0,2 % nonproportional elongation
Rp0.2,Mpa
nom.c -- -- -- -- -- 640 640 720 900 1080
max. -- -- -- -- -- 640 660 720 940 1100
4 Stress at 0,0048 d non-proportional elongation for
full-size fasteners
Rpf,Mpa
nom.c -- 320 -- 400 480 -- -- -- -- --
max. -- 340e -- 420e 480e -- -- -- -- --
5 Stress under proof load
Spf,Mpa
nom. 225 310 280 380 440 580 600 650 830 970
Proof Sp,nom/ReL min Or
strength Sp,nom/Rp0.2min Or
rati Sp,nom/Rpf min
0.94 0.91 0.93 0.9 0.92 0.91 0.91 0.9 0.88 0.88
6 Percentage elongation
after fracture for
machined test pieces,A,%
min. 22 -- 20 -- -- 12 12 10 9 8
7 Percentage reduction of area after
fracture for machined test pieces,Z,%
min. -- 52 48 48 44
8 Elongation after fracture for full-size
fasteners,Af
min. -- 0.24 -- 0.22 0.2 -- -- -- -- --
9 Head soundness No fracture
10 Vickers hardness, HV,
F≥98N
min. 120 130 155 160 190 250 255 290 320 385
max. 220g 250 320 335 360 380 435
11 Brinell hardness, HBW
,F=30D²
min. 114 124 147 152 181 238 242 276 304 366
max. 209g 238 304 318 342 361 414
Supplier QBH
12 Rockwell hardness,HRB ,
HRB
min. 67 71 79 82 89
max. 95g 99.5
Rockwell hardness,
HRC
min. -- 22 23 28 32 39
max. -- 32 34 37 39 44
13 Surface hardness
HV 0.3
max. -- h h,j h,j
14 Height of non-decarburized thread zone,E,mm min. -- 1/2H1 2/3H1 3/4H1
Depth of complete decarburization in the
thread,G,mm
max. -- 0.015
15 Reduction of hardness after retempering,HV max. -- 20
16 Breaking torque,
MB,N·m
min. -- in accordance with ISO 898-7
17 Impact strength,
KVK,I,J
min. -- 27 -- 27 27 27 27 m
18 Surface integrity in accordance with ISO 6157-1n ISO 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 %
C Si Mn P S Cr Ni Cu Al
0.06 0.06 0.33 0.013 0.003 0.01 0 0.01 0.028


QBH 1035
CHEMICAL COMPOSI %
C Si Mn P S Cr Ni Cu
0.34 0.13 0.73 0.012 0.002 0.02 0.01 0.02


QBH 10B21
CHEMICAL COMPOSI %
C Si Mn P S Cr B
0.2 0.04 0.81 0.017 0.007 0.017 0.0021


QBH 1045
CHEMICAL COMPOSI %
C Si Mn P S Cr Ni Cu
0.45 0.23 0.58 0.014 0.006 0.057 0.008 0.016

QBH 40CR
CHEMICAL COMPOSI %
C Si Mn P S Cr Ni Cu
0.4 0.21 0.54 0.015 0.008 0.95 0.02 0.02

QBH 35CRMO
CHEMICAL COMPOSI %
C Si Mn P S Cr Ni Cu Mo
0.35 0.22 0.59 0.01 0.003 0.93 0.01 0.01 0.21


QBH 42CRMO
CHEMICAL COMPOSI %
C Si Mn P S Cr Ni Cu Mo
0.42 0.27 0.92 0.013 0.004 1.01 0.03 0.04 0.2
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SS316 Round Head Screw Anodization With Square Neck

Ask Latest Price
Brand Name :
QBH
Model Number :
carriage bolt
Certification :
ISO9001
Place of Origin :
CHINA
MOQ :
900kg
Price :
Negotiation
Contact Supplier
SS316 Round Head Screw Anodization With Square Neck
SS316 Round Head Screw Anodization With Square Neck
SS316 Round Head Screw Anodization With Square Neck
SS316 Round Head Screw Anodization With Square Neck
SS316 Round Head Screw Anodization With Square Neck
SS316 Round Head Screw Anodization With Square Neck

Jiaxing City Qunbang Hardware Co., Ltd

Verified Supplier
5 Years
zhejiang, jiaxing
Since 2014
Business Type :
Manufacturer, Trading Company, Seller
Total Annual :
3000-4500
Employee Number :
100~150
Certification Level :
Verified Supplier
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