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As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt
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As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt
  • name
  • name
  • name
  • name

As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt

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
Detail Information
Product Description
Detail Information
Place of Origin
CHINA
Brand Name
QBH
Certification
ISO9001
Model Number
AS1252
Standard:
AS1252
Material:
Carbon Steel
Size:
M16-M36
Finish:
ZP YZP HDG BLACK
Grade:
8.8 10.9
Packing:
Carton And Pallet Or According To The Customer's Requirement
Sample:
Free Sample
Thread:
Machine Thread
Lead Time:
Per On Order Quantity
Type:
Hexagon Head
Advantage:
We Can Manufacture According To Client Design,OEM / ODM / Customized Service Provided
Oem:
Yes,welcome
Minimum Order Quantity:
900kg
Price:
Negotiation
Packaging Details:
25KG/CTN,36CTN/PALLET or small packing
Delivery Time:
30DAYS
Payment Terms:
L/C, T/T
Supply Ability:
500TON/MONTH
High Light:

As1252 Heavy Hexgonal Bolt

,

Heavy m6 hex bolt

,

As1252 m6 hex bolt

Product Description

 

 
 

Allfasteners AS1252 structural bolts are a complete assembly of bolt, nut and washer. Selected by those who depend on quality products installed in there project to meet the requirements of Australian structural standards.

  • Class 8.8 high-tensile grade
  • Hot dipped galvanised
  • Metric thread
  • Manufactured to AS1252:1983 dimensions (1996 mechanical properties)

 

Screw Thread
d
M16 M20 (M22) M24 (M27) M30 M36
P Thread Pitch
b L≤125
125＜L≤200
200＜L
ds max
min
s max
min
e max
min
k max
min
2 2.5 2.5 3 3 3.5 4
38 46 50 54 60 66 78
44 52 56 60 66 72 84
- 65 69 73 79 85 97
16.7 20.84 22.84 24.84 27.84 30.84 37
15.3 19.16 21.16 23.16 26.16 29.16 35
27 34 36 41 46 50 60
26.16 33 35 40 45 49 58.8
31.2 39.26 41.6 47.3 53.1 57.7 69.3
29.56 37.29 39.55 45.2 50.85 55.37 66.44
10.75 13.4 14.9 15.9 17.9 19.75 23.55
9.25 11.6 13.1 14.1 16.1 17.65 21.45

 

As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 0

 

 

 

 

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.
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

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

 

 

As1252 Heavy hexgonal Bolt are commonly used in critical structural applications such as Bridges, buildings and other infrastructure. Ensuring their quality is critical to the safety and structural integrity of these works. The control and traceability of the A325M heavy duty hex bolt or any fastener is a key aspect of the construction and engineering industry. Safety and structural integrity are the correct applications that distinguish As1252 Heavy hexgonal Bolt. Batch control and traceability help maintain the highest safety standards. Batch control ensures that the bolts used in the project come from the same production batch. This helps maintain consistent quality and ensures that all bolts from a particular batch meet the same specifications and standards. In the rare cases where defects or problems are found in a particular batch of bolts, being able to trace back to the source of those bolts can facilitate an effective recall and replacement. This minimizes downtime and project delays.

 

 

 

As1252 Heavy hexgonal Bolt are designed for steel to steel connections. Because they are used in

such a specific application, they have dimensional characteristics that are unique and limited compared

to most other fastener grades. This includes stock sizes available in the market place, length tolerances,

short thread lengths, and the actual head dimensions are the same as any heavy hex head bolt.

AS 1252 covers high strength structural bolts used in structural steel connections. As1252 Heavy hexgonal Bolt have

a heavy hex head, a full body diameter, and are normally short in overall length since they are connecting

steel to steel.

 

As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 1As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 2As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 3As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 4As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 5

Tags: 

M16 High Strength Bolts For Steel Structure,  

M36 Electrical Fasteners,  

HDG Electrical Fasteners

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products
PRODUCTS DETAILS
Products

Steel Nut Bolts

Steel Hex Bolt

Carbon Steel Bolt

High Tensile Stainless Steel Bolts

Carbon Steel Nuts

Stainless Steel Nut

Steel Flat Washer

Spring Steel Washers

Stainless Steel Washer

Fully Threaded Studs

Non Standard Fasteners

Seismic Wedge Anchors

Self Tapping Screw

Electrical Fasteners

Solar Panel Fasteners

Stainless Steel Shackle
As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt
  • name
  • name
  • name
  • name
As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt
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
Detail Information
Product Description
Detail Information
Place of Origin
CHINA
Brand Name
QBH
Certification
ISO9001
Model Number
AS1252
Standard:
AS1252
Material:
Carbon Steel
Size:
M16-M36
Finish:
ZP YZP HDG BLACK
Grade:
8.8 10.9
Packing:
Carton And Pallet Or According To The Customer's Requirement
Sample:
Free Sample
Thread:
Machine Thread
Lead Time:
Per On Order Quantity
Type:
Hexagon Head
Advantage:
We Can Manufacture According To Client Design,OEM / ODM / Customized Service Provided
Oem:
Yes,welcome
Minimum Order Quantity:
900kg
Price:
Negotiation
Packaging Details:
25KG/CTN,36CTN/PALLET or small packing
Delivery Time:
30DAYS
Payment Terms:
L/C, T/T
Supply Ability:
500TON/MONTH
High Light

As1252 Heavy Hexgonal Bolt

,

Heavy m6 hex bolt

,

As1252 m6 hex bolt

Product Description

 

 
 

Allfasteners AS1252 structural bolts are a complete assembly of bolt, nut and washer. Selected by those who depend on quality products installed in there project to meet the requirements of Australian structural standards.

  • Class 8.8 high-tensile grade
  • Hot dipped galvanised
  • Metric thread
  • Manufactured to AS1252:1983 dimensions (1996 mechanical properties)

 

Screw Thread
d
M16 M20 (M22) M24 (M27) M30 M36
P Thread Pitch
b L≤125
125＜L≤200
200＜L
ds max
min
s max
min
e max
min
k max
min
2 2.5 2.5 3 3 3.5 4
38 46 50 54 60 66 78
44 52 56 60 66 72 84
- 65 69 73 79 85 97
16.7 20.84 22.84 24.84 27.84 30.84 37
15.3 19.16 21.16 23.16 26.16 29.16 35
27 34 36 41 46 50 60
26.16 33 35 40 45 49 58.8
31.2 39.26 41.6 47.3 53.1 57.7 69.3
29.56 37.29 39.55 45.2 50.85 55.37 66.44
10.75 13.4 14.9 15.9 17.9 19.75 23.55
9.25 11.6 13.1 14.1 16.1 17.65 21.45

 

As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 0

 

 

 

 

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.
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

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

 

 

As1252 Heavy hexgonal Bolt are commonly used in critical structural applications such as Bridges, buildings and other infrastructure. Ensuring their quality is critical to the safety and structural integrity of these works. The control and traceability of the A325M heavy duty hex bolt or any fastener is a key aspect of the construction and engineering industry. Safety and structural integrity are the correct applications that distinguish As1252 Heavy hexgonal Bolt. Batch control and traceability help maintain the highest safety standards. Batch control ensures that the bolts used in the project come from the same production batch. This helps maintain consistent quality and ensures that all bolts from a particular batch meet the same specifications and standards. In the rare cases where defects or problems are found in a particular batch of bolts, being able to trace back to the source of those bolts can facilitate an effective recall and replacement. This minimizes downtime and project delays.

 

 

 

As1252 Heavy hexgonal Bolt are designed for steel to steel connections. Because they are used in

such a specific application, they have dimensional characteristics that are unique and limited compared

to most other fastener grades. This includes stock sizes available in the market place, length tolerances,

short thread lengths, and the actual head dimensions are the same as any heavy hex head bolt.

AS 1252 covers high strength structural bolts used in structural steel connections. As1252 Heavy hexgonal Bolt have

a heavy hex head, a full body diameter, and are normally short in overall length since they are connecting

steel to steel.

 

As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 1As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 2As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 3As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 4As1252 Standard Heavy Hexgonal Bolt / m6 hex bolt 5

Tags: 

M16 High Strength Bolts For Steel Structure,

M36 Electrical Fasteners,

HDG Electrical Fasteners

Jiaxing City Qunbang Hardware Co., Ltd
No.375,Tongle Road,Jiaxing City,Zhejiang Province,China
Tel: +86-13511332403
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