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China factories

China factory - Jiaxing City Qunbang Hardware Co., Ltd

Jiaxing City Qunbang Hardware Co., Ltd

  • China,Jiaxing ,Zhejiang
  • Verified Supplier
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  3. ASME B18.3 Socket Head Cap Screws Grade 2 Carbon Steel Bolt
China ASME B18.3 Socket Head Cap Screws Grade 2 Carbon Steel Bolt
China ASME B18.3 Socket Head Cap Screws Grade 2 Carbon Steel Bolt

  1. China ASME B18.3 Socket Head Cap Screws Grade 2 Carbon Steel Bolt
  2. China ASME B18.3 Socket Head Cap Screws Grade 2 Carbon Steel Bolt
  3. China ASME B18.3 Socket Head Cap Screws Grade 2 Carbon Steel Bolt
  4. China ASME B18.3 Socket Head Cap Screws Grade 2 Carbon Steel Bolt

ASME B18.3 Socket Head Cap Screws Grade 2 Carbon Steel Bolt

  1. MOQ： 900kg
  2. Price： Negotiation
  3. Get Latest Price
Payment Terms L/C, T/T,OA
Supply Ability 500TON/MONTH
Delivery Time 30days
Packaging Details 25kg Carton+900kg/Pallet
Material Carbon steel
Size 1/4~2
Surface treatment Plain,Zinc,Black,H.D.G
Grade 2/5/8
Process Cold Forging,Hot Forging
Sample Free Sample
Packaging 25kg Carton+900kg/Pallet
Brand Name QBH
Model Number ANSI 1/4” to 2"
Certification ISO9001
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C, T/T,OA Supply Ability 500TON/MONTH
Delivery Time 30days Packaging Details 25kg Carton+900kg/Pallet
Material Carbon steel Size 1/4~2
Surface treatment Plain,Zinc,Black,H.D.G Grade 2/5/8
Process Cold Forging,Hot Forging Sample Free Sample
Packaging 25kg Carton+900kg/Pallet Brand Name QBH
Model Number ANSI 1/4” to 2" Certification ISO9001
Place of Origin CHINA
High Light cl2 Carbon Steel Bolt ，B18.3 Carbon Steel Bolt ，ASME Grade 8 Socket Head Cap Screws

 

 

Socket head cap screws are commonly used in machine assembly for removable panels and parts. They have a round cap with a hex head and are tightened with a socket wrench drive. Longer caps are easier to see when fastened, while button and flat head caps are less likely to snag clothing or linkages. Cap screws with a black oxide or armor coat finish resist corrosion.

 

 

 

Size
0# 1# 2# 3# 4# 5# 6# 8# 10# 1/4 5/16 3/8 7/16 1/2 5/8 3/4
d Screw Diameter
PP UNC
UNF
UNEF
ds max=nominal size
min
dk max
min
k max
min
s Nominal Size
t min
b min
0.060 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.190 0.250 0.3125 0.375 0.4375 0.500 0.625 0.750
- 64.0 56.0 48.0 40.0 40.0 32.0 32.0 24.0 20.0 18.0 16.0 14.0 13.0 11.0 10.0
80.0 72.0 64.0 56.0 48.0 44.0 40.0 36.0 32.0 28.0 24.0 24.0 20.0 20.0 18.0 16.0
- - - - - - - - - 32.0 32.0 32.0 28.0 28.0 24.0 20.0
0.060 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.190 0.250 0.3125 0.375 0.4375 0.500 0.625 0.750
0.0568 0.0695 0.0822 0.0949 0.1075 0.1202 0.1329 0.1585 0.1840 0.2435 0.3053 0.3678 0.4294 0.4919 0.6163 0.7406
0.096 0.118 0.140 0.161 0.183 0.205 0.226 0.270 0.312 0.375 0.469 0.562 0.656 0.750 0.938 1.125
0.091 0.112 0.134 0.154 0.176 0.198 0.218 0.262 0.303 0.365 0.457 0.550 0.642 0.735 0.921 1.107
0.060 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.190 0.250 0.312 0.375 0.438 0.500 0.625 0.750
0.057 0.070 0.083 0.095 0.108 0.121 0.134 0.159 0.185 0.244 0.306 0.368 0.430 0.492 0.616 0.740
0.050 0.062 0.078 0.078 0.094 0.094 0.109 0.141 0.156 0.188 0.250 0.312 0.375 0.375 0.500 0.625
0.025 0.031 0.038 0.044 0.051 0.057 0.064 0.077 0.090 0.120 0.151 0.182 0.213 0.245 0.307 0.370
0.50 0.62 0.62 0.62 0.75 0.75 0.75 0.88 0.88 1.00 1.12 1.25 1.38 1.50 1.75 2.00
Size
7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-3/4 2 2-1/4 2-1/2 2-3/4 3 3-1/4 3-1/2 3-3/4 4
d Screw Diameter
PP UNC
UNF
UNEF
ds max=nominal size
min
dk max
min
k max
min
s Nominal Size
t min
b min
0.875 1.000 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000
9.0 8.0 7.0 7.0 6.0 6.0 5.0 4.5 4.5 4.0 4.0 4.0 4.0 4.0 4.0 4.0
14.0 12.0 12.0 12.0 12.0 12.0 - - - - - - - - - -
20.0 20.0 18.0 18.0 18.0 18.0 - - - - - - - - - -
0.875 1.000 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000
0.8647 0.9886 1.1086 1.2336 1.3568 1.4818 1.7295 1.9780 2.2280 2.4762 2.7262 2.9762 3.2262 3.4762 3.7262 3.9762
1.312 1.500 1.688 1.875 2.062 2.250 2.625 3.000 3.375 3.750 4.125 4.500 4.875 5.250 5.625 6.000
1.293 1.479 1.665 1.852 2.038 2.224 2.597 2.970 3.344 3.717 4.090 4.464 4.837 5.211 5.584 5.958
0.875 1.000 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000
0.864 0.988 1.111 1.236 1.360 1.485 1.734 1.983 2.232 2.481 2.730 2.979 3.228 3.478 3.727 3.976
0.750 0.750 0.875 0.875 1.000 1.000 1.250 1.500 1.750 1.750 2.000 2.250 2.250 2.750 2.750 3.000
0.432 0.495 0.557 0.620 0.682 0.745 0.870 0.995 1.120 1.245 1.370 1.495 1.620 1.745 1.870 1.995
2.25 2.50 2.81 3.12 3.44 3.75 4.38 5.00 5.62 6.25 6.88 7.50 8.12 8.75 9.38 10.00

 

 

 

 

 

 

Mechanical property :SAEJ429

 

 

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

 

Grade2 Grade5 Grade8

 

 

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

  • QBH brand sales to the main quality assurance.
  • Years of export trade management, excellent service, word-of-mouth guarantee.
  • By working with TUV,escort for quality.
  • Customization of non-standard parts can be made according to customer's requirements and drawings.
  • For quality customers,we can provide a certain credit period.
     

 

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Trading Company,Seller

  • Year Established:

    2014

  • Total Annual:

    3000-4500

  • Employee Number:

    100~150

  • Ecer Certification：

    Verified Supplier

     Jiaxing City Qunbang Hardware Co,ltd is a productiondesignsales and after-sales as one of the fasteners business,The company is located in HangjiaHu Plain,close to ShanghaiNingboZhapu ports.The geographical position is superior,the transportation is convenient,has created the nat...      Jiaxing City Qunbang Hardware Co,ltd is a productiondesignsales and after-sales as one of the fasteners business,The company is located in HangjiaHu Plain,close to ShanghaiNingboZhapu ports.The geographical position is superior,the transportation is convenient,has created the nat...

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Get in touch with us

  • Reach Us
  • Jiaxing City Qunbang Hardware Co., Ltd
  • No.375,Tongle Road,Jiaxing City,Zhejiang Province,China
  • https://www.steelnutbolts.com/

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