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ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
Specifications
Brand Name :
QBH
Model Number :
1/2-4inch
Certification :
ISO9001
Place of Origin :
CHINA
MOQ :
900KG
Price :
Negotiation
Payment Terms :
L/C, T/T,OA
Supply Ability :
200TON/MONTH
Delivery Time :
30days
Packaging Details :
25kg Carton+900kg/Pallet or 5KG/CTN
Standard :
ANSI
Material :
Carbon Steel
Size :
1/4 to 4 INCH
Surface treatment :
YZP ZP BLACK HDG
Grade :
A563 (grades A, C, and DH), A194 grade 2H
Sample :
Sample is free
Lead time :
Per on order quantity
Type :
Hexagon Head
Function :
Fastening,Fastening and Decoration,Connection,Prevention of thievery
Advantage :
we can manufacture according to client design,OEM / ODM / customized service provided
Oem :
yes,welcome
Thread :
UNC,UNF
Package :
Suitable for sea and air transportation or as required,Cartons&pallets or according to custom
Description

Specification

Coupling nuts (also known as a rod coupling, rod coupling nut, coupler nut, or extension nut), is a threaded fastener for joining two male threads, most commonly threaded rods. The outside surface of the coupling nut is usually a hex shape to allow for wrench tightening. Reducing coupling nuts are a variant design that allows the joining of two rods of differing thread sizes.

Trust QBH fastener with supplying your metric and SAE coupling nuts. We provide a wide range of sizes and finishes including hot dipped galvanized, plain and zinc. Please contact us today if you can’t find the exact product or size needed as we have many products not listed on our website.

Coupling Nuts are used to make up long tie rod assemblies from shorter lengths of rod and to facilitate assembly of two fasteners or fittings which both have external threads. Coupling nut dimensions are described by the Industrial Fasteners Institute, in IFI-128.

Dimensions

ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H

Coupling Nuts

Thread Diameter

Across Flats Size

Across Points Size

Length

Weight Each (lbs)
1/2 3/4 7/8 1 1/2 0.12
5/8 1 1 1/8 1 7/8 0.30
3/4 1 1/8 1 5/16 2 1/4 0.42
7/8 1 5/16 1 7/16 2 5/8 0.56
1 1 1/2 1 3/4 3 0.99
1 1/8 1 5/8 1 7/8 3 3/8 1.23
1 1/4 1 7/8 2 3/16 3 3/4 1.93
1 3/8 2 2 5/16 4 1/8 2.31
1 1/2 2 1/4 2 5/8 4 1/2 3.33
1 5/8 2 3/4 3 3/16 4 7/8 6.17
1 3/4 2 3/4 3 3/16 5 1/4 6.16
1 7/8 3 3 7/16 5 5/8 8.01
2 3 1/4 3 7/16 6 7.9
2 1/4 3 1/2 4 1/16 6 3/4 12.7
2 1/2 3 7/8 4 1/2 7 1/2 17.2
2 3/4 4 1/4 4 15/16 8 1/4 22.7
3 4 5/8 5 5/16 9 29.2
3 1/4 5 5 3/4 9 3/4 36.8
3 1/2 5 3/8 6 3/16 10 1/2 45.8
3 3/4 5 3/4 6 5/8 11 1/4 56.0
4 6 1/8 7 1/16 12 68
4 1/2 6 7/8 7 15/16 13 1/2 96
5 7 5/8 8 13/16 15 130

NOTES REGARDING STRENGTH

*When high strength rods are specified, coupling nuts produced to meet ASTM A563 grade DH and A194 grade 2H can be provided. These parts will meet all of the chemical and mechanical properties called for in those specifications.

Process flow

Cold forging

Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ tapping ➨make heat treatment(if need) ➨ Finish ➨ Packing

Hot forging

Cutting material ➨ hot forging ➨ turning ➨ tapping ➨ make heat treatment(if need) ➨ Finish ➨ Packing

Product Grade

Grade 2 Grade 5 Grade 8

Materials and Chemical compstition

J995 Chemical Requirements
Grade Carbon, % Phosphorus, % Manganese, % Sulfur, %
2 0.47 max 0.120 max - 0.15 max
5 0.55 max 0.050 max 0.30 min 0.15 max
8 0.55 max 0.040 max 0.30 min 0.05 max

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

Standard finish is plain, with either a cold drawn or hot rolled mill finish, depending on the type of bar stock used. Hot Dip Galvanizing is available, as well as zinc electroplating.

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

Mechanical property

J995 Mechanical Properties
Grade Nominal Size, inches Proofload, UNC and UN 8 Threads, psi Rockwell Hardness
2 1/4 thru 1-1/2 90,000 C32 Max
5 1/4 thru 1 120,000 C32 Max
Over 1 thru 1-1/2 105,000 C32 Max
8 1/4 thru 5/8 150,000 C24-C32
Over 5/8 thru 1 150,000 C26-C34
Over 1 thru 1-1/2 150,000 C26-C36
*Values listed are not normally applicable to jam, slotted, castle, heavy or thick nuts.

J995 Tensile Stress Area
Thread, UNC UNC Stress Area, sq inches Thread, 8TPI

8 TPI Stress Area,

sq inches
1/2-13 0.1419 　 　
5/8-11 0.226 　 　
3/4-10 0.334 　 　
7/8-9 0.462 　 　
1-8 0.606 1--8 0.606
1-1/8-7 0.763 1-1/8-8 0.79
1-1/4-7 0.969 1-1/4-8 1
1-3/8-7 1.155 1-3/8-8 1.233
1-1/2-6 1.405 1-1/2-8 1.492
To calculate individual nut proofload value, simply multiply the tensile stress area by the appropriate psi proofload value.

Grade 2 5 8
Size 1/4 to 1-1/2 1/4 to 1 1/4 to 1 1 to 1-1/2 1 to 1-1/2 1/4 to 1-1/2 1/4 to 1-1/2
Thread Series UNC and 8NU UNC and 8NU UNF and 12UN or more fine thread UNC and 8NU UNF and 12UN or more fine thread UNC and 8NU UNF and 12UN or more fine thread
　 PROOF LOAD Unit:psi
HEX NUT - 120000 109000 105000 94000 150000 150000
HEX FLANGE NUT - 120000 109000 105000 94000 150000 150000
HEX JAM NUT - 72000 65000 63000 57000 90000 900000
HEAVY HEX JAM NUT - 72000 65000 63000 57000 90000 900000
HEX SLOTTED NUT - 96000 87000 84000 75000 120000 120000
HEAVY HEX NUT - 133000 120000 116000 105000 165000 150000
HEX THICK NUT - 133000 120000 116000 105000 165000 150000
HEAVY HEX SLOTTED NUT - 105000 96000 92000 84000 132000 120000
HEX THICK SLOOTED NUT - 105000 96000 92000 84000 132000 120000
SQUARE NUT 90000 - - - - - -

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

Hex couplers are used to connect two pieces of threaded material. Hex and heavy hex couplers are threaded right hand. If a right hand-left hand coupler is needed, consider using a sleeve nut.

See our nut compatibility chart to determine the compatible hex coupler for a specific grade of bolt. Since hot-dip galvanizing typically adds 2.2 to 5 mils of thickness to the threaded portion of a fastener, galvanized couplers are tapped oversize to compensate for the corrosion resistant coating on the bolts.

Product tags

ansi b18.2.2 hex nut

,

hex coupling nuts

,

m12 1.25 coupling nut
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ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H

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Product Detail
Brand Name :
QBH
Model Number :
1/2-4inch
Certification :
ISO9001
Place of Origin :
CHINA
MOQ :
900KG
Price :
Negotiation
Contact Supplier
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H
ANSI ASME IFI B18.2.2 Hex Coupling nuts Heavy Hex Coupling nuts 1/2 to 4inch A563 (grades A, C, and DH), A194 grade 2H

Jiaxing City Qunbang Hardware Co., Ltd

Verified Supplier
5 Years
zhejiang, jiaxing
Since 2014
Business Type :
Manufacturer, Trading Company, Seller
Main Products :
Steel Nut Bolts, Steel Hex Bolt, Carbon Steel Bolt
Total Annual :
3000-4500
Employee Number :
100~150
Certification Level :
Verified Supplier
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