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Carbon Steel B18.2.1 GR2 Flanged Hex Head Bolt

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Jiaxing City Qunbang Hardware Co., Ltd

City: jiaxing

Province/State:zhejiang

Country/Region:china

Tel:86-573-82071082

Contact Person:
Mr.Lance View Contact Details

Carbon Steel B18.2.1 GR2 Flanged Hex Head Bolt

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Brand Name QBH
Model Number 1/4--3/4
Certification ISO9001
Place of Origin CHINA
Minimum Order Quantity 900kg
Price Negotiation
Payment Terms L/C, T/T
Supply Ability 500TON/MONTH
Delivery Time 30DAYS
Packaging Details 25KG/CTN,36CTN/PALLET or small packing
Standard ANSI B18.2.1
Material Carbon Steel and stainless steel
Size 1/4 to 3/4 all kind of length
Finish ZP YZP HDG BLACK
Grade 2,5,8
Packing Carton and pallet or according to the customer's requirement
Sample Free Sample
Thread Mushroom head square neck
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
Detailed Product Description

Carbon Steel B18.2.1 304 GR2 304 Flanged Hex Head Bolt

 

Specification

 

Hex head flange bolts are used on vehicle frames, especially truck frames, and anywhere a hex washer head bolt is needed. The large bearing surface distributes clamping force over a large area, allowing them to be used with irregular and oversized holes. Hex head flange bolts are often used with Grade G Flange Style Lock Nuts to create a bolt/nut system that resists loosening and spans a wide area.


Thread Size
d
1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4
PP UNC
UNF
ds max
min
s max
min
e min
min
dc max
c min
k max
b L≤6
L＞6
r max
min
20 18 16 14 13 12 11 10
28 24 24 20 20 18 18 16
0.25 0.3125 0.375 0.4375 0.5 0.5625 0.625 0.75
0.245 0.3065 0.369 0.4305 0.493 0.5545 0.617 0.741
0.375 0.5 0.5625 0.625 0.75 0.8125 0.9375 1.125
0.367 0.489 0.551 0.612 0.736 0.798 0.922 1.1
0.433 0.577 0.65 0.722 0.866 0.938 1.083 1.299
0.409 0.548 0.618 0.685 0.825 0.895 1.034 1.234
0.56 0.68 0.81 0.93 1.07 1.19 1.33 1.59
0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11
0.28 0.32 0.39 0.46 0.51 0.57 0.62 0.73
0.75 0.875 1 1.125 1.25 1.375 1.5 1.75
1 1.125 1.25 1.375 1.5 1.625 1.75 2
0.025 0.025 0.025 0.025 0.025 0.045 0.045 0.045
0.015 0.015 0.015 0.015 0.015 0.02 0.02 0.02

 

 

 

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


 

 

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

 

stainless steel

 

　 化学成分CHEMICAL COMPOSI(% )
Type C碳 Si硅 Mn锰 P磷 S硫 Ni镍 Cr铬 Mo钼 Cu铜 Others
≤ ≤ ≤ ≤ ≤ ≥ ≥ ≥ ≈ 　
201Cu 0.08 1.00 7.5-10 0.06 0.03 4.00-6.00 14.0-17.0 　 2.0-3.0 　
201 0.15 1.00 8.50 0.06 0.03 3.50-5.50 16.0-18.0 　 　 N≤0.25
130M/202 0.15 1.00 7.5-10 0.06 0.03 4.00-6.00 17.0-19.0 　 　 N≤0.25
202 0.15 1.00 7.5-10 0.06 0.03 4.00-6.00 17.0-19.0 　 　 　
301 0.15 1.00 2.00 0.045 0.03 5.00-8.00 16.0-18.0 　 　 　
302 0.15 1.00 2.00 0.045 0.03 8.00-10.0 17.0-19.0 　 　 　
XM7
(302HQ)		 0.08 1.00 2.00 0.045 0.03 8.50-10.5 17.0-9.00 　 3.0-4.0 　
303 0.15 1.00 2.00 0.20 ≥0.15 8.00-10.0 17.0-19.0 ≤0.60 　 　
303Cu 0.15 1.00 3.00 0.20 ≥0.15 8.0-10.0 17.0-19.0 ≤0.60 1.5-3.5 　
304 0.08 1.00 2.00 0.045 0.03 8.00-10.0 18.0-20.0 　 　 　
304H 0.08 1.00 2.00 0.045 0.03 8.0-10.0 18.0-20.0 　 　 　
304HC 0.08 1.00 2.00 0.045 0.03 8.00-10.0 17.0-19.0 　 2.0-3.0 　
304HCM 0.08 1.00 2.00 0.045 0.03 8.0-10.0 17.0-19.0 　 2.5-4.0 　
304L 0.03 1.00 2.00 0.045 0.03 9.0-13.0 18.0-20.0 　 　 　
304M 0.06 1.00 2.00 0.045 0.03 8.50-10.0 18.0-20.0 　 　 　
305 0.12 1.00 2.00 0.045 0.03 10.5-13.0 17.0-19.0 　 　 　
305J1 0.08 1.00 2.00 0.045 0.03 11.0-13.5 16.5-19.0 　 　 　
309S 0.08 1.00 2.00 0.045 0.03 12.0-15.0 22.0-14.0 　 　 　
310S 0.08 1.50 2.00 0.045 0.03 19.0-22.0 24.0-26.0 　 　 　
314 0.25 15.-3.0 2.00 0.040 0.03 19.0--22.0 24.0-26.0 　 　 　
316 0.08 1.00 2.00 0.045 0.03 10.0-14.0 16.0-18.0 2.0-3.0 　 　
316Cu 0.03 1.00 2.00 0.045 0.03 10.0-14.0 16.0-18.0 2.0-3.0 2.0-3.0 　
316L
(12Ni)		 0.03 1.00 2.00 0.045 0.03 12.0-15.0 16.0-18.0 2.0-3.0 　 　
316L
(10Ni)		 0.03 1.00 2.00 0.045 0.03 10.0-14.0 16.0-18.0 2.0-3.0 　 　
321 0.08 1.00 2.00 0.045 0.03 9.00-13.0 17.0-19.0 　   Ti≤5*C%
410 0.15 　 1.00 　 0.03 　 11.5-13.5 　 　 　
416 0.15 　 1.25 　 ≥0.15 　 12.0-14.0 　 　 　
420 0.26-0.4 　 1.00 　 0.03 　 12.0-14.0 　 　 　
410L 0.30 1.00 1.00 0.040 0.03 　 11.5-13.5 　 　 　
430 0.12 0.75 1.00 0.040 0.03 　 16.0-18.0 　 　 　
430F 0.12 1.00 1.25 0.060 0.15 　 16.0-18.0 　 　 　
631(J1) 0.09 1.00 1.00 0.040 0.03 6.50-8.50 16.0-18.0 　 　 AL 0.75-1.5
2520 0.08 1.00 2.00 0.035 0.03 19.0-22.0 24.0-26.0 　 　 　
410 0.015 1.00 1.00 0.04 0.03 　 11.5-13.5 　 　 　

 

 

 

 

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 Tags: Carbon Steel Flanged Hex Head Bolt   GR8 Flanged Hex Head Bolt   GR5 Hexagon Screw With Flange  
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