A193 B7 Heavy Hex Bolts Heavy Hex Cap Screws
Standard: ASME/ANSI B18.2.1, ASME/ANSI B18.2.3.7M
(Various types of head are available)
Inch Size: 1/2”-2.3/4” with various lengths
Metric Size: 1/2-M72 with various lengths
Grade: ASTM A193 B7
Finish: Black Oxide, Zinc Plated, Zinc Nickel Plated, PTFE etc.
Packing: Bulk about 25 kgs each carton, 36 cartons each pallet
Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports
Please feel free to contact us for more details.
ASTM A193
Scope
Originally approved in 1936, this specification is heavily utilized in petroleum and chemical construction applications. The ASTM standard covers alloy steel and stainless steel bolting materials for high temperature service. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings. Although, this material is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
Below is a basic summary of a few of the common grades. ASTM A193 covers a number of other standard specifications not covered in this description including B5, B6, and B16.
Grades
| B7 | Alloy steel, AISI 4140/4142 quenched and tempered |
| B8 | Class 1 Stainless steel, AISI 304, carbide solution treated. |
| B8M | Class 1 Stainless steel, AISI 316, carbide solution treated. |
| B8 | Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
| B8M | Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
Mechanical Properties
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 - 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 - 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 - 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 - 1-1/2 | 100 | 50 | 28 | 45 | |
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 - 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 - 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 - 1-1/2 | 90 | 50 | 30 | 45 |
Recommended Nuts and Washers
| Bolt Grade | Nuts | Washers |
| B7 | A194 Grade 2H | F436 |
| B8 Class 1 | A194 Grade 8 | SS304 |
| B8M Class 1 | A194 Grade 8M | SS316 |
| B8 Class 2 | A194 Grade 8 | SS304 |
| B8M Class 2 | A194 Grade 8M | SS316 |
Strain hardened nuts available as a supplementary requirement
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https://mywheeladapters.com
423-704-0407
transcript:
Hello this is Richard with my wheel adapters.com hoping you’re having a great day
In this video I want to describe the wheel adapters and wheel spacers that I sell and
Give you a few pointers about what to look for when you purchase wheel adapters for your vehicle.
This is an example of a US-made wheel adapter, it is made of 6061 T6 billet aluminum
The wheel studs come in various sizes which will be described in the listing
The center hole size also varies between adapters and the hub size on different vehicles varies as well, the size for this item is shown in the written description,
Because an adapter have thickness, all adapters are spacers, the difference is if you change the bolt pattern it is considered an adapter and if you have the same pattern on both vehicle and wheel side it is considered a spacer
The minimum thickness we build bolt on adapters or spacers is 20 mm so there is enough material for structural integrity and enough room to attach the adapter to the vehicle with the lug nuts.
We can build them up to 4 inches thick.
Now let’s look at an imported adapter, generally it is very similar in appearance to the US-made adapter except for the stamped in number on it, all the imported adapters I have seen have this stamped in number and none of the US manufacturers that I am aware of do this.
At mywheeladapters.com we sell US-made, custom and imported adapters, They are both made of the same billet aluminum material and are very similar in construction quality.
There are unscrupulous people in the adapter business that claim to have Integrity and would lead you to believe that they are selling a very inexpensive US-made product saying trust American grade, but they are imported adapters. We cannot manufacture adapters in this country and sell them for as low a price as the imported parts.
So if you are looking for the least expensive way to get your wheels to fit your vehicle you can purchase the imported adapters and work out just fine but, A word of caution with the imported adapters, if you purchase them with the wrong size studs you may end up having to buy two sets of lug nuts running your final cost up more in the end than purchasing US-made adapters to fit perfectly to start with.
So what is the advantage to US-made wheel adapters?
Since manufacturing in this country has been so drastically reduced it is a good thing to buy US-made products supporting US workers.
You can get custom applications that are not available in an imported item because it is an odd combination
We can also build them to fit the hub of your vehicle and the center hole of the wheel which is the best way to go.
If you want the best available for your vehicle then you get them US-made to match your wheel and car exactly in both the stud size and the center hole size.
Are there any advantages to imported adapters?
They are less expensive and available for immediate shipment, although US adapters usually ship within two days.
If you found this video on YouTube or other video site there may not be a specific listing attached to it, you can contact us at 423-704-0407 or visit https://mywheeladapters.com to purchase an adapter, I also want to mention that due to the sheer number of combinations available all items are not available on the website so if you do not see what you need send us an email to mywheeladapters@Gmail.com or call
I hope this is been helpful, and have a blessed day.
https://MyWheelAdapters.com