MOQ: | 900kg |
Price: | Negotiation |
Standard Packaging: | 25KG/CTN,36CTN/PALLET or small packing |
Delivery Period: | 30DAYS |
Payment Method: | L/C, T/T |
Supply Capacity: | 500TON/MONTH |
Specification
DIN 961 - Hexagon head bolts with fine thread up to head
Current norm: DIN EN 24017
Equivalent norms: ISO 4017; CSN 021103; PN 82105; UNI 5739; EU 24017
l - length of bolt
d - the nominal diameter of the thread
k - head height
r - radius
e - the diameter of the circumscribed circle (not less than)
s - size hex head turnkey
c - thickness of the mounting collar
a - length undercut
Steel: 5.6,5.8,8.8,10.9,12.9
Stainless: A2,A4
Plastic: Plastic Pa
Non Ferrous: Brass
Thread: 6g
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Process flow
Cold forging
Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ thread rolling ➨make heat treatment(if need) ➨ Finish ➨ Packing
Hot forging
Cutting material ➨ hot forging ➨ turning ➨ shrink diameter(half thread) ➨thread rolling ➨ make heat treatment(if need) ➨ Finish ➨ Packing
Product Grade
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 | ||||||||||
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 | |||||
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. |
Materials and Chemical compstition
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 |
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 |
10B21
CHEMICAL COMPOSI % | ||||||
C | Si | Mn | P | S | Cr | B |
0.2 | 0.04 | 0.81 | 0.017 | 0.007 | 0.017 | 0.0021 |
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 |
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 |
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 |
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 |
Finish
PLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON
PACKING
QBH BULK
20-25KG/CTN,36CTNS/PALLET
20-30KG/BAGS,36BAGS/PALLET
ONE TON/BOXES
50KG/ IRON DRUM,12 IRON DRUMS/PALLET
QBH SMALL PACKING
Packing in small boxes according to customer’s requirements
Packing in plastic bag according to customer’s requirements
QBH PALLET TYPE
SOLID WOOD FUMIGATION PALLET
EURO Pallet
THREE SPLINT PALLET
WOODEN BOX
The advantages of QBH
MOQ: | 900kg |
Price: | Negotiation |
Standard Packaging: | 25KG/CTN,36CTN/PALLET or small packing |
Delivery Period: | 30DAYS |
Payment Method: | L/C, T/T |
Supply Capacity: | 500TON/MONTH |
Specification
DIN 961 - Hexagon head bolts with fine thread up to head
Current norm: DIN EN 24017
Equivalent norms: ISO 4017; CSN 021103; PN 82105; UNI 5739; EU 24017
l - length of bolt
d - the nominal diameter of the thread
k - head height
r - radius
e - the diameter of the circumscribed circle (not less than)
s - size hex head turnkey
c - thickness of the mounting collar
a - length undercut
Steel: 5.6,5.8,8.8,10.9,12.9
Stainless: A2,A4
Plastic: Plastic Pa
Non Ferrous: Brass
Thread: 6g
|
||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||
|
|
||||||||||||||||||||||||||||||
|
Process flow
Cold forging
Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ thread rolling ➨make heat treatment(if need) ➨ Finish ➨ Packing
Hot forging
Cutting material ➨ hot forging ➨ turning ➨ shrink diameter(half thread) ➨thread rolling ➨ make heat treatment(if need) ➨ Finish ➨ Packing
Product Grade
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 | ||||||||||
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 | |||||
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. |
Materials and Chemical compstition
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 |
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 |
10B21
CHEMICAL COMPOSI % | ||||||
C | Si | Mn | P | S | Cr | B |
0.2 | 0.04 | 0.81 | 0.017 | 0.007 | 0.017 | 0.0021 |
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 |
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 |
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 |
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 |
Finish
PLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON
PACKING
QBH BULK
20-25KG/CTN,36CTNS/PALLET
20-30KG/BAGS,36BAGS/PALLET
ONE TON/BOXES
50KG/ IRON DRUM,12 IRON DRUMS/PALLET
QBH SMALL PACKING
Packing in small boxes according to customer’s requirements
Packing in plastic bag according to customer’s requirements
QBH PALLET TYPE
SOLID WOOD FUMIGATION PALLET
EURO Pallet
THREE SPLINT PALLET
WOODEN BOX
The advantages of QBH