Factory Supply China Hex Socket Flat Head Cap Screws
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For a result of ours specialty and repair consciousness, our business has won a very good name among the clients all around the globe for Factory Supply China Hex Socket Flat Head Cap Screws, The principle of our corporation would be to present high-quality merchandise, professional service, and trustworthy communication. Welcome all pals to place trial purchase for making a long-term business romantic relationship. For a result of ours specialty and repair consciousness, our business has won...
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For a result of ours specialty and repair consciousness, our business has won a very good name among the clients all around the globe for Factory Supply China Hex Socket Flat Head Cap Screws, The principle of our corporation would be to present high-quality merchandise, professional service, and trustworthy communication. Welcome all pals to place trial purchase for making a long-term business romantic relationship.
For a result of ours specialty and repair consciousness, our business has won a very good name among the clients all around the globe for China Hardware, Construction Materials, We’ve been persisting in the business essence “Quality First, Honoring Contracts and Standing by Reputations, providing customers with satisfying items and service. ” Friends both at home and abroad are warmly welcome to establish everlasting business relations with us.
ASTM A449 Hex Cap Screws Hex Bolts
Standard: ASME B18.2.1 unless otherwise specified
(Various types of configuration are also available)
Thread Size: 1/4”-3” with various lengths
Grade: ASTM A449 Type-1
Finish: Black Oxide, Zinc Plated, Dacromet, Hot Dip Galvanized, PTFE and so on
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 A449
ASTM A449 covers headed bolts, rods, and anchor bolts in diameters ranging from 1/4″ through 3″ inclusive. It is a medium strength bolt manufactured from a medium carbon or alloy steel that develops its mechanical values through a heat treating process. It is intended for general engineering applications.
ASTM A449 is virtually identical in chemistry and strength to ASTM A325 and SAE J429 grade 5. However, A449 is more flexible in the sense that it covers a larger diameter range and is not restricted by a specific configuration.
A449 Types
| TYPE 1 | Plain carbon steel, carbon boron steel, alloy steel, or alloy boron steel. |
|---|---|
| TYPE 2 | Withdrawn 2003 |
| TYPE 3 | Weathering steel. |
A449 Mechanical Properties
| Size | Tensile, ksi | Yield, ksi | Elong. %, min | RA %, min |
|---|---|---|---|---|
| 1⁄4 - 1 | 120 min | 92 min | 14 | 35 |
| 11⁄8 - 11⁄2 | 105 min | 81 min | 14 | 35 |
| 15⁄8 - 3 | 90 min | 58 min | 14 | 35 |
A449 Chemical Properties
| Type 1 Bolts | ||||
|---|---|---|---|---|
| Element | Carbon Steel | Carbon Boron Steel | Alloy Steel | Alloy Boron Steel |
| Carbon | 0.30 – 0.52% | 0.30 – 0.52% | 0.30 – 0.52% | 0.30 – 0.52% |
| Manganese, min | 0.60% | 0.60% | 0.60% | 0.60% |
| Phosphorus, max | 0.040% | 0.040% | 0.035% | 0.035% |
| Sulfur, max | 0.050% | 0.050% | 0.040% | 0.040% |
| Silicon | 0.15-0.30% | 0.10 – 0.30% | 0.15 – 0.35% | 0.15 – 0.35% |
| Boron | 0.0005 – 0.003% | 0.0005 – 0.003% | ||
| Alloying Elements | * | * | ||
| * Steel, as defined by the American Iron and Steel Institute, shall be considered to be alloy when the maximum range given for the content of alloying elements exceeds one of more of the following limits: Manganese, 1.65%, silicon, 0.60%, copper, 0.60%, or in which a definite range or a minimum quantity of any of the following elements is specified or required within the limits of the recognized field of constructional alloy steels: aluminum, chromium up to 3.99%, cobalt, columbium, molybdenum, nickel, titanium, tungsten, vanadium, zirconium or any other alloying elements added to obtain a desired alloying effect. | ||||
| Type 3 Bolts, Class * | ||||||
|---|---|---|---|---|---|---|
| Element | A | B | C | D | E | F |
| Carbon | 0.33 – 0.40% | 0.38 – 0.48% | 0.15 – 0.25% | 0.15 – 0.25% | 0.20 – 0.25% | 0.20 – 0.25% |
| Manganese | 0.90 – 1.20% | 0.70 – 0.90% | 0.80 – 1.35% | 0.40 – 1.20% | 0.60 – 1.00% | 0.90 – 1.20% |
| Phosphorus | 0.035% max | 0.06 – 0.12% | 0.035% max | 0.035% max | 0.035% | 0.035% |
| Sulfur, max | 0.040% | 0.040% | 0.040% | 0.040% | 0.040% | 0.040% |
| Silicon | 0.15 – 0.35% | 0.30 – 0.50% | 0.15 – 0.35% | 0.25 – 0.50% | 0.15 – 0.35% | 0.15 – 0.35% |
| Copper | 0.25 – 0.45% | 0.20 – 0.40% | 0.20 – 0.50% | 0.30 – 0.50% | 0.30 – 0.60% | 0.20 – 0.40% |
| Nickel | 0.25 – 0.45% | 0.50 – 0.80% | 0.25 – 0.50% | 0.50 – 0.80% | 0.30 – 0.60% | 0.20 – 0.40% |
| Chromium | 0.45 – 0.65% | 0.50 – 0.75% | 0.30 – 0.50% | 0.50 – 1.00% | 0.60 – 0.90% | 0.45 – 0.65% |
| Vanadium | 0.020% min | |||||
| Molybdenum | 0.06% max | 0.10% max | ||||
| Titanium | 0.05% max | |||||
| * Selection of a class shall be at the option of the manufacturer | ||||||
A449 Recommended Hardware
| Nuts | Washers | |||
|---|---|---|---|---|
| Plain | Galvanized | |||
| 1/4 – 1-1/2 | 1-5/8 – 3 | 1/4 – 3 | ||
| A563B Hex | A563A Heavy Hex | A563DH Heavy Hex | F436 | |
| Note: Nuts of other grades having proof load stresses greater than the specified grade are suitable. The ASTM A563 Nut Compatibility Chart has a complete list of specifications. | ||||
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For a result of ours specialty and repair consciousness, our business has won a very good name among the clients all around the globe for Factory Supply China Grade 10.9 DIN7991 Hex Socket Flat Head Cap Screws, The principle of our corporation would be to present high-quality merchandise, professional service, and trustworthy communication. Welcome all pals to place trial purchase for making a long-term business romantic relationship.
Factory Supply China Hardware, Construction Materials, We’ve been persisting in the business essence “Quality First, Honoring Contracts and Standing by Reputations, providing customers with satisfying items and service. ” Friends both at home and abroad are warmly welcome to establish everlasting business relations with us.
