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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. HDG Treatment Hot Forging Socket Head Cap Screw Cylindrical
China HDG Treatment Hot Forging Socket Head Cap Screw Cylindrical
China HDG Treatment Hot Forging Socket Head Cap Screw Cylindrical

  1. China HDG Treatment Hot Forging Socket Head Cap Screw Cylindrical
  2. China HDG Treatment Hot Forging Socket Head Cap Screw Cylindrical
  3. China HDG Treatment Hot Forging Socket Head Cap Screw Cylindrical
  4. China HDG Treatment Hot Forging Socket Head Cap Screw Cylindrical

HDG Treatment Hot Forging Socket Head Cap Screw Cylindrical

  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 or 5KG/CTN
Material Carbon steel
Size 1/4 to 2inch
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
Length within 300mm
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 or 5KG/CTN
Material Carbon steel Size 1/4 to 2inch
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 Length within 300mm
Brand Name QBH Model Number ANSI 1/4” to 2"
Certification ISO9001 Place of Origin CHINA
High Light Hot Forging Socket Head Cap Screw ，Cylindrical Socket Head Cap Screws ，HDG Socket Head Cap Screw

ASME B 18.3 Hexagon Socket Head Cap Screws Cylindrical Socket Head Cap Screw UNC UNF Gr2 5 8 Black YZP Used In Machine

Specification

 

Alloy Steel Socket Head Screws

 

With a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head.

Black-oxide steel screws are mildly corrosion resistant in dry environments. Zinc-plated steel screws resist corrosion in wet environments. Zinc-aluminum-coated steel screws are 40 times as corrosion resistant as zinc-plated screws and comparable to Magni-coated screws. They withstand 1,000 hours of salt spray per ASTM B117.

Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance. They are not compatible with coarse threads.

Screws that meet ASTM A574, ASTM A574M, and ISO 898-1 comply with specifications and testing requirements for material quality. Screws that meet ASME B18.3, ASME B18.3M, ISO 21269, and ISO 4762 (formerly DIN 912) comply with specifications for dimensional standards.

 

 

 

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.
     

Product application

QBH Hex 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.

 

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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