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ANSI/ASTM/ASME Heavy Hex Structural A325 A490 Type 1 Black Half Thread Hex Head Bolts
Description:
ASTM A325 is an ASTM standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1⁄2 to 1-1⁄2 in diameter. The equivalent metric standard is ASTM A325M, which is titled Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength. It defines mechanical properties for sizes M12–36. There is also a T version, which is used to refer to fully threaded bolts.
heavy hex structural bolts is a kind of high strength bolts, which is standard parts also. Securing better performance for the steel, engineering, fastening effect. General steel, steel bolts are required more than 8.8, there are 10.9, 12.9, and steel are all high strength bolts.
A194/A194M Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
A325M Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength (Metric)
A449 Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use
A563 Specification for Carbon and Alloy Steel Nuts
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D3951 Practice for Commercial Packaging
F436 Specification for Hardened Steel Washers
F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
F788/F788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
F959 Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners
F1136 Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1789 Terminology for F16 Mechanical Fasteners
F2329 Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners
| SIZE | 1/2 | 5/8 | 3/4 | 7/8 | 1 | 1-1/8 | 1-1/4 | 1-3/8 | 1-1/2 |
| F | 7/8 | 1-1/16 | 1-1/4 | 1-7/16 | 1-5/8 | 1-13/16 | 2 | 2-3/16 | 2-3/8 |
| H | 5/16 | 25/64 | 15/32 | 35/64 | 39/64 | 11/16 | 25/32 | 27/32 | 15/16 |
| LT | 1.00 | 1.25 | 1.38 | 1.50 | 1.75 | 2.00 | 2.00 | 2.25 | 2.25 |
| Name: (Maichuan) | ANSI/ASTM/ASME Heavy Hex Structural Bolt A325 A490 Type 1 Black Half Thread Hex Head Bolts |
| Equal Standard | DIN6915 DIN6914 DIN6916 |
| Standard No | ASTM A325 bolt, A490 bolt, DIN6914 bolt, AS1252 bolt, BS4395 |
| Thread Type | UNC, UNF, UNEF, M, BSW, BSF, TR, ACME, NPT TP |
| Material | Mild(1008/1010), Medium Carbon steel(35#/45#), Alloy Steel(40Cr/35CrMo/4140), etc |
| Dimension | Metric size from 6mm-100mm, Inch size from 1/8"-2-1/2". |
| Surface treatment | treatment: Plain, black finished, Zinc plated (Galv), Hot DIP Galvanized, Nickel, phosphate black, DACRO coating, etc. |
| Production Technique | Cold forging, Hot forming, Machining, Heat treatment, Staming, etc |
| Grade | A325, A490, Gr8.8, 10.9 |
Application:
These bolts are intended for using in structural connections. These connections are comparable to those covered under the requirements of the Specification for Structural Joints Using High-Strength Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
In order to achieve the best possible joint, it is recommended to install the screw through the opposite side of the head, although it is possible to install the screw from the top face side. Production process: wire rod, wire drawing, drawing, cold forging, threading, dipping, inspection, packing, shipment.
Advantages:
1. Top Quality control
2. Competitive Price
3. Various of Design
4. OEM Accepted
5. Customer's Design and Logo are Welcome
