ASTM A320/A320M L7 Tap End Studs Double End Studs
Standard: IFI-136, ASME B16.5
Inch Size: 1/4”-2.1/2” with various lengths
Metric Size: M6-M64 with various lengths
Other Available Grade:
ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,
ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.
Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium 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 A320
Scope Originally approved in 1948, the ASTM A320 specification covers alloy steel and stainless steel bolting materials for low temperature service. This standard covers rolled, forged, or strain hardened bars, bolts, screws, studs, and stud bolts used for pressure vessels, valves, flanges, and fittings. Like the ASTM A193 specification, unless otherwise specified, the 8UN thread series is specified on fastener larger than 1” in diameter. Below is a basic summary of a few of the common grades within the ASTM A320 specification. A number of other less common grades of ASTM A320 exist, but not covered in the description below.| L7 Alloy steel | AISI 4140/4142 Quenched and tempered |
| L43 Alloy steel | AISI 4340 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 |
| Grade | Size | Tensile, ksi, min | Yield, ksi, min |
Charpy Impact 20-ft-lbf @ temp |
Elong, %, min | RA, %, min |
| L7 | Up to 21/2 | 125 | 105 | -150° F | 16 | 50 |
| L43 | Up to 4 | 125 | 105 | -150° F | 16 | 50 |
|
B8 Class 1 |
All | 75 | 30 | N/A | 30 | 50 |
|
B8M Class 1 |
All | 75 | 30 | N/A | 30 | 50 |
|
B8 Class 2 |
Up to 3/4 | 125 | 100 | N/A | 12 | 35 |
| 7/8 - 1 | 115 | 80 | N/A | 15 | 35 | |
| 11/8 - 11/4 | 105 | 65 | N/A | 20 | 35 | |
| 13/8 - 11/2 | 100 | 50 | N/A | 28 | 45 | |
|
B8M Class 2 |
Up to 3/4 | 110 | 95 | N/A | 15 | 45 |
| 7/8 - 1 | 100 | 80 | N/A | 20 | 45 | |
| 11/8 - 11/4 | 95 | 65 | N/A | 25 | 45 | |
| 13/8 - 11/2 | 90 | 50 | N/A | 30 | 45 |
| Grade | Nuts | Washers |
| L7 | A194 Grade 4 or 7 | F436 |
| L43 | A194 Grade 4 or 7 | F436 |
| B8 Class 1 | A194 Grade 8 | SS304 |
| B8M Class 1 | A194 Grade 8M | SS316 |
| B8 Class 2 | A194 Grade 8, strain hardened | SS304 |
| B8M Class 2 | A194 Grade 8M, strain hardened | SS316 |
!!Attention!! I’ve done some research, looked in forums, asked couple mechanics… I was wrong – no engine flush needed! If quality oil used and car is serviced regularly, flush can do more harm than good.
Video shows how to change oil and oil filter for Audi A6, C6 chassis. Also explains how to use and purpose of www.WheelsAndMotors.com
Here’s direct link to job description at our website:
https://www.wheelsandmotors.com/show_solution.php?id=5
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- Anyone (in 10 mins) can create their own $30 very strong bicycle trailer out of an ordinary hand truck. Bruce Thomson in New Zealand explains in a slide show a demo of many he’s made & used in many years.
- Also gives ‘surprise tips’ on safety – attaching & carrying loads. These trailers take tiny space to store (vertical).
- Note: With years of hard work, wheel bearings fail. Watch for wobbly wheels, replace/re-sleeve them. With huge weights, the tubeless wheels sheared their bolts going over deep pothole or steps, so don’t put more than about 250kg while towing. Walking the bike ‘safer. Can take big 8′x4′ wallboard though, if you extend with a 4″x2″. & rear crossbar.
- See other vids:”No need for bicycle trailer – vertical load the carrier’ and “World’s cheapest ‘Vertical recliner’ bicycle”, “Double glaze doityourself for 1500 dollars”. “Watch me scale my own teeth FREE”, and “Simple shower lid DIY – stops chilly drafts, prevents mildew, adds cubic m storage”
- MAY 2013: Created 1M wide swap-in axle for stability.
- SEPT 2013 Have just bought some (used) skateboard wheels, with a view to making a super-compact, telescopic-collapsible , strong trailer small enough to carry all the time on the bike. If/when it’s done, I’ll create a video and mention it on this video too.
- MARCH 2014 Still saving lots of money by using the trailer free instead of paying deliveries or owning a car. Note: If you’re thinking of adding an electric motor to the front wheel, it can endanger your control of steering, esp. at speed. When you turn, the wheel can twist unpredictably. Better to apply motor to back wheel instead.