ASTM A194/A194M 2H Heavy Hex Nuts
API 6A 6D Flange Valve Wellhead ASME/ANSI Flange Heavy Hex Nuts
Dimension Standard: ASME B18.2.2, ASME B18.2.4.6M, ISO 4033, Din934 H=D
Inch Size: 1/4”-4”
Metric Size: M6-M100
Other Available Grade:
ASTM A194/A194M 2H, 2HM, 4, 4L, 7, 7L, 7M, 8, 8M, 16 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, Competitive Price, Timely Delivery,Technical Support, Supply Test Reports
Please feel free to contact us for more details.
ASTM A194
The ASTM A194 specification covers carbon, alloy and stainless steel nuts intended for use in high-pressure and/or high-temperature service. Unless otherwise specified, the American National Standard Heavy Hex Series (ANSI B 18.2.2) shall be used. Nuts up to and including 1 inch nominal size shall be UNC Series Class 2B fit. Nuts over 1 inch nominal size shall be either UNC Series Class 2B fit or 8 UN Series Class 2B fit. High strength ASTM A194 grade 2H nuts are common in the marketplace and are often substituted for ASTM A563 grade DH nuts due to the limited availability of DH nuts in certain diameters and finishes. Grades| 2 | Carbon steel heavy hex nuts |
| 2H | Quenched & tempered carbon steel heavy hex nuts |
| 2HM | Quenched & tempered carbon steel heavy hex nuts |
| 4 | Quenched & tempered carbon-molybdenum heavy hex nuts |
| 7 | Quenched & tempered alloy steel heavy hex nuts |
| 7M | Quenched & tempered alloy steel heavy hex nuts |
| 8 | Stainless AISI 304 heavy hex nuts |
| 8M | Stainless AISI 316 heavy hex nuts |
Mechanical Properties Grade Identification Markings
| Grade Identification Marking5 | Specification | Material | Nominal Size, In. | Tempering Temp. °F | Proof Load Stress, ksi | Hardness Rockwell | See Note | |
| Min | Max | |||||||
| ASTM A194 Grade 2 | Medium Carbon Steel | 1/4 - 4 | 1000 | 150 | 159 | 352 | 1,2,3 | |
| ASTM A194 Grade 2H | Medium Carbon Steel, Quenched and Tempered | 1/4 - 4 | 1000 | 175 | C24 | C38 | 1,2 | |
| ASTM A194 Grade 2HM | Medium Carbon Steel, Quenched and Tempered | 1/4 - 4 | 1000 | 150 | 159 | 237 | 1,2,3 | |
| ASTM A194 Grade 4 | Medium Carbon Alloy Steel, Quenched and Tempered | 1/4 - 4 | 1100 | 175 | C24 | C38 | 1,2 | |
| ASTM A194 Grade 7 | Medium Carbon Alloy Steel, Quenched and Tempered | 1/4 - 4 | 1100 | 175 | C24 | C38 | 1,2 | |
| ASTM A194 Grade 7M | Medium Carbon Alloy Steel, Quenched and Tempered | 1/4 - 4 | 1100 | 150 | 159 | 237 | 1,2,3 | |
| ASTM A194 Grade 8 | Stainless AISI 304 | 1/4 - 4 | - | 80 | 126 | 300 | 4 | |
| ASTM A194 Grade 8M | Stainless AISI 316 | 1/4 - 4 | - | 80 | 126 | 300 | 4 | |
| NOTES: 1. 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. 2. Properties shown are those of coarse and 8-pitch thread heavy hex nuts. 3. Hardness numbers are Brinell Hardness. 4. Nuts that are carbide-solution treated require additional letter A - 8A or 8MA. 5. 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. Nuts coated with zinc have an asterisk (*) marked after the grade symbol. Nuts coated with cadmium shall have a plus sign (+) marked after the grade symbol. 6. Other less common grades exist, but are not listed here. Inch Fastener Standards. 7th ed. Cleveland: Industrial Fasteners Institute, 2003. N-80 - N-81. | ||||||||
| Element | 2, 2H, and 2HM | 4 | 7 and 7M (AISI 4140) | 8 (AISI 304) | 8M (AISI 316) |
|---|---|---|---|---|---|
| Carbon | 0.40% min | 0.40 - 0.50% | 0.37 - 0.49% | 0.08% max | 0.08% max |
| Manganese | 1.00% max | 0.70 - 0.90% | 0.65 - 1.10% | 2.00% max | 2.00% max |
| Phosphorus, max | 0.040% | 0.035% | 0.035% | 0.045% | 0.045% |
| Sulfur, max | 0.050% | 0.040% | 0.040% | 0.030% | 0.030% |
| Silicon | 0.40% max | 0.15 - 0.35% | 0.15 - 0.35% | 1.00% max | 1.00% 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% |
Click here for detail specs or to buy the ZT 0562CF Hinderer Slicer Carbon Fiber Folding Knife: https://www.osograndeknives.com/catalog/knives/zero-tolerance-hinderer-slicer-folding-knife-carbon-fiber-3.5-inch-stonewash-zt-0562cf-26151.html
The Zero Tolerance model 0562CF is the cousin of the 0562, this ZT features the same special Rick Hinderer flat-ground slicer grind that provides both slicing efficiency and a tough point, but on a Böhler M390 powdered steel blade.
With a high chromium and vanadium content, M390 offers good wear resistance with excellent corrosion resistance. This powdered metallurgy stainless steel takes a razor edge and holds it well. It can also be polished to a mirror finish and is very tough.
The Hinderer Slicer 0562CF’s handle has a carbon fiber front scale and stonewashed titanium back. For secure lock up during use, ZT uses a frame lock with hardened steel lockbar inserts and lockbar stabilization.
The knife opens with a flipper and moves out of the handle on a smooth KVT ball-bearing opening system. A washer with caged ball bearings surrounds the pivot and makes opening the knife nearly frictionless; just pull back on the flipper and add a roll of the wrist and the 0562CF is ready for action.
The unique pocketclip is reversible (left/right) and enables extra-deep carry in the pocket.
Specifications:
Overall Length: 8.25 in.
Blade Length: 3.50 in.
Blade Thickness: 0.16 in.
Blade Material: Bohler M390 Super Steel
Blade Style: Drop Point
Blade Grind: Flat
Finish: Stonewash and Satin Finish
Edge Type: PlainEdge
Handle Length: 4.75 in.
Handle Thickness: 0.48 in.
Handle Material: Carbon Fiber Front and Stonewashed Titanium Back
Frame/Liner: Titanium
Weight: 5.45 oz.
Pocket Clip: Ambidextrous Deep Carry Tip-Up Pocket Clip
Knife Type: Manual with KVT ball-bearing System
Opener: Flipper, Thumb Stud
Lock Type: Frame Lock with Lockbar Stabilizer
Brand: Zero Tolerance
Model: 0562CF
Designer: Rick Hinderer
Made in USA
View all Zero Tolerance Knives… https://www.osograndeknives.com/store/catalog/m-zero-tolerance-319-1.html
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Build at your own risk. I would say this is hard to do and needs a helper. Using a 79cc. Predator engine from “Harbor Freight” a hardware store.
Also a couple of funny things.
The engine seems to be mounted backwards.
The exhaust points right at your legs.
The on/off switch is on the front of the engine away from you.
The pulls start, pulls to the front of the snow blower instead of to the back. (where you are)
The air cleaner is in back away from flying snow, that’s good.
All the controls are on the engine.
Some assembly tips…
Use the engine mounting plate that came with it.
The handle bar can be removed to easier install the new engine. The bottom handle bar bolt, engine side, will hit the engine case. Use a shorter bolt or cut the original one shorter.
The snow thrower drive pulley is two pieces and needs a engine shaft spacer to push them together. Use the one that came off the engine shaft first, to hit the engine drive shaft taper and a 3/4 copper pipe coupling or steel pipe. The copper pipe coupling or better, steel pipe will have to be cut or grind down to approximate length of 1 1/2 inches, to have a exact pulley alignment. Also apply permanent thread lock, the red stuff, to the shaft bolt.
The new engine will mount to the per-made holes in the snow thrower body but a motor brace is needed under the engine and four holes will need to be drilled into the body sides. Angle iron will make the bracket. Also apply permanent thread lock to the four engine mounting bolts when installing the engine.
The wheels have to come off to drill holes in the side of the snow thrower body. Twist off the axle flat star lock washer with pliers and you could reuse them.
Parts you will need…
3/4 copper pipe coupling or steel pipe to be used on the engine shaft as a pulley spacer cut to a exact length.
1 1/2” X 1 1/2” X 3 feet 14 gauge, Plated Steel Slotted Angle Iron
BOLTS TO MOUNT THE ENGINE
5/16”-24 X 3/4” Grade 5 SAE Hex Cap Screws (4)
5/16”-24 Hex Nuts (4)
5/16” Split Lock Washers (4)
BOLTS TO MOUNT THE ANGLE IRON BRACE
AND ENGINE TO BRACE
5/16”-18 X 3/4” Grade 5 USS Hex Cap Screws (8)
5/16”-18 Hex Nuts (8)
5/16” Split Lock Washers (8)