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 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TYPE 2	Withdrawn 2003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.

Testing Lab

Workshop

Warehouse

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.

Product Tags

China Hardware

Construction Materials

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