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Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm /4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut

China Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut, Find details about China Steel Structure Accessories, Steel Fabricated House Accessories from Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut

Model NO.
QBH-ASTM A194
Application
Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part, Steel Walkway and Floor, Steel Structure Bridge, Steel Structure Nut
Trademark
QBH
Transport Package
25kgs/Box, Bulk in Pallet
Specification
1/2"~4" (Size)
Origin
China
HS Code
73181600
Model NO.
QBH-ASTM A194
Application
Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part, Steel Walkway and Floor, Steel Structure Bridge, Steel Structure Nut
Trademark
QBH
Transport Package
25kgs/Box, Bulk in Pallet
Specification
1/2"~4" (Size)
Origin
China
HS Code
73181600
Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut
Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut


High Strength Black Oxide ASTM A194 2h Hex Heavy Structural Nuts 
 
STYLEANSI ASME ASTM Heavy Hex Nuts
Hex Heavy Structural Nuts 
STANDARDASTM A194 2H
SUPPLIERQBH
SHOPqbfastener.en.made-in-china.com
SIZE1/2"~4"
CLASS(Carbon steel)2,2H,2HM,4,7,7M
Coating(Carbon steel)black, zinc, HDG, Heat treatment, Dacromet, GEOMET , Customized
MATERIALCarbon steel
PACKINGbulk/ boxes in cartons, bulk in polybags/ buckets, etc.
PALLETsolid wood pallet, plywood pallet, ton box/bag, etc.

Product Description
Choose these nuts for their good corrosion resistance and adherence to Strict-military Standards
for material and construction. 
 

ASTM A194-2HM A194-2H A194-4 A194-7 A194-7M Heavy Hex Nuts with Carbon and Alloy Steel
Teflon Black/Zinc/H.D.G 1/2~4inch.

 

QBH company will according Standard Specification for Carbon and Alloy Steel Nuts for Bolts for
High Pressure or High Temperature Service, or Both.
This standard is issued under the fixed designation A194/A194M; the number immediately following
the designation indicates the year of original adoption or, in the case of revision, the year of last
revision. A number in parentheses indicates the year of last reapproval.

A superscript epsilon indicates an editorial change since the last revision or reapproval.

This standard has been approved for use by agencies of the Department of Defense.
Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut

 

 

QBH HEAVY HEX NUTS    UNIT:MM
SIZEFHCKG/MPCS
1/412.4--12.75.54--6.3514.12--14.665.22
5/1613.87--14.277.11--7.9815.8--16.517.8
3/816.99--17.478.66--9.5819.38--20.1714.25
7/1618.49--19.0510.24--11.221.08--2218.88
1/221.59--22.2311.79--12.824.61--25.6530
9/1623.09--23.8313.36--14.4326.34--27.5137
5/826.19--26.9714.91--16.0329.84--31.1754
3/430.78--31.7518.03--19.2535.1--36.6588
7/8--935.41--36.5321.16--22.4840.36--42.16135
1--840.01--41.2824.28--25.745.61--47.65193
1-1/8-746.02-44.628.93-27.453.16-51.49269
1-1/4-750.8-49.2231.77-30.1458.64-56.83348
1-3/8-655.57-53.8235-33.2764.16-62.14463
1-1/2-660.32-58.4238.22-36.3969.64-67.46595
1-5/8-565.07-63.0141.45-39.5275.15-72.75742
1-7/8-574.62-72.2347.9-45.7786.15-83.41090
1-3/4-569.85-67.6144.67-42.648.64-78.06926
2-4.579.37-76.8351.13-48.8991.64-88.711357
2-1/4-4.588-86.0557.17-54.73102.64-99.361879
2-1/2-498.42-95.2563.62-60.98113.63-109.982555
2-3/4-4107.95-104.4470.07-67.23124.63-120.593379
3-4117.47-113.6676.53-73.48135.63-131.244315
 

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

 

A194-2 , A194-2HM , A194-2H , A194-4 , A194-7 , A194-7M , A194-7L

A194 Grades

2QBH ASTM A194 Series Carbon Steel Heavy Hex Nuts
2HQuenched & tempered carbon steel heavy hex nuts
2HMQuenched & tempered carbon steel heavy hex nuts, 100% hardness tested
4Quenched & tempered carbon-molybdenum heavy hex nuts (withdrawn in 2017)
7Quenched & tempered alloy steel heavy hex nuts
7MQuenched & tempered alloy steel heavy hex nuts, 100% hardness tested
7LQuenched & tempered alloy steel heavy hex nuts, Charpy impact tested
8Stainless AISI 304 heavy hex nuts
8MStainless AISI 316 heavy hex nuts

More Details
Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut
Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut
Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut
Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex NutQbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut


QBH Materials and Chemical Compstition

 

1045

CHEMICAL COMPOSI %
CSiMnPSCrNiCu
0.450.230.580.0140.0060.0570.0080.016

 

 

42CRMO

CHEMICAL COMPOSI %
CSiMnPSCrNiCuMo
0.420.270.920.0130.0041.010.030.040.2

 

QBH A194 Chemical Properties

Element2, 2H, and 2HM47 and 7M (AISI 4140)8 (AISI 304)8M (AISI 316)
Carbon0.40% min0.40 - 0.50%0.37 - 0.49%0.08% max0.08% max
Manganese1.00% max0.70 - 0.90%0.65 - 1.10%2.00% max2.00% max
Phosphorus, max0.040%0.035%0.035%0.045%0.045%
Sulfur, max0.050%0.040%0.040%0.030%0.030%
Silicon0.40% max0.15 - 0.35%0.15 - 0.35%1.00% max1.00% max
Chromium  0.75 - 1.20%18.0 - 20.0%16.0 - 18.0%
Nickel   8.0 - 11.0%10.0 - 14.0%
Molybdenum 0.20 - 0.30%0.15 - 0.25% 2.00 - 3.00%
 

QBH A194 Mechanical Properties

SpecificationMaterialNominal Size, In.Tempering Temp. °FProof Load Stress, ksiHardness RockwellSee Note
MinMax
ASTM A194 Grade 2Medium Carbon Steel1/4 - 401501593521,2,3
ASTM A194 Grade 2HMedium Carbon Steel, Quenched and Tempered1/4 - 4850175C24C381,2
ASTM A194 Grade 2HMMedium Carbon Steel, Quenched and Tempered1/4 - 411501501592371,2,3
ASTM A194 Grade 4Medium Carbon Alloy Steel, Quenched and Tempered1/4 - 41100175C24C381,2
Supplier/BrandQBH
Shophttps://qbfastener.en.made-in-china.com/
ASTM A194 Grade 7Medium Carbon Alloy Steel, Quenched and Tempered1/4 - 41100175C24C381,2
ASTM A194 Grade 7MMedium Carbon Alloy Steel, Quenched and Tempered1/4 - 411501501592371,2,3
ASTM A194 Grade 8Stainless AISI 3041/4 - 4-801263004
ASTM A194 Grade 8MStainless AISI 3161/4 - 4-801263004
 


NOTES:

The markings shown for all grades of A194 nuts are for cold formed and hot forged nuts. When nuts
are machined from bar stock, the nut must additionally be marked with the letter 'B'. The letters H
and M indicate heat treated nuts.
Properties shown are those of coarse and 8-pitch thread heavy hex nuts.
Hardness numbers are Brinell Hardness.
Nuts that are carbide-solution treated require additional letter A - 8A or 8MA.
All nuts shall bear the manufacturer's identification mark. Nuts shall be legibly marked on one face
to indicate the grade and process of the manufacturer. Marking of wrench flats or bearing surfaces
is not permitted unless agreed upon between manufacturer and purchaser.
Other less common grades exist, but are not listed here.

Certifications & Package

Qbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex NutQbh Bulkly Order OEM ODM ASTM A194 Standard 2/2h/ 2hm/4/7/7m Class 1/2"~4" Size Steel Structure Fabricated House Heavy Hex Nut
Our Services

Professional Manufacturer: All of our Fastener are designed and manufactured according to buyers' 
specification and performance.
Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.
Cost effective: Competitive prices with professional factory supply
Perfect fastening solution with 15+ years experiences to solve your problem: Wide range of parts selection.
Customized Ideal Fasteners: customized services according to the samples and drawings offered.

Free Samples for Standard Fastener from Jiaxing City Qunbang Hardware
 We Promise:
1.High quality
2. Competitive price
3. The shortest delivery
4. The fastest response
5. The best service

FAQ
1.What's your experience like?

Our general manager has been engaged in the export of fasteners since 2005. 
Our team can provide you with professional fasteners selling and smooth export services.

2.How about your price?
High quality products with reasonable price. Please give me a inquire, We will quoted you a price for you 
refer at once.

3. How do you control your quality?
We require the quality control department to inspect every production link of each shipment. And we can provide you MTC and mill certificate when the goods is finished.

4.How about your delivery time?
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let factory priority produce 
your goods.

5.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' 
requirement.

6.What is your payment term?
We can accept T/T,LC for general order ,Paypal and Western union for small order or samples order. 


Awaiting for your kind inquiry! Thanks & best regards!
For more information:  http://qbfastener.en.made-in-china.com

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