ASTM A325 / A325M Heavy Hex Structural Bolts
The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A325 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
Dimension: ASME B18.2.6 (Inch Size), ASME B18.2.3.7M (Metric Size)
Thread Size: 1/2"-1.1/2", M12-M36, with various lengths
Grade: ASTM A325 / A325M Type-1
Finish: Black Oxide, Zinc Plating, Hot Dip Galvanized, Dacromet, 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.
In 2016, ASTM A325 was officially withdrawn and replaced by ASTM F3125, in which A325 now becomes a grade under the F3125 specification. The F3125 specification is a consolidation and replacement of six ASTM standards, including; A325, A325M, A490, A490M, F1852, and F2280.
Prior to its withdrawl in 2016, the ASTM A325 specification covered high strength heavy hex structural bolts from 1/2″ diameter through 1-1/2″ diameter. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts.
This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with similar mechanical properties, see Specification A449.
Bolts for general applications, including anchor bolts, are covered by Specification A449. Also refer to Specification A449 for quenched and tempered steel bolts and studs with diameters greater than 1-1/2″ but with similar mechanical properties.
ASTM A325
Scope The ASTM A325 specification covers high strength heavy hex structural bolts from ½” diameter through 1-1/2” diameter. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts. Refer to the Structural Bolts page of our site for thread lengths and other related dimensions. This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with similar mechanical properties, see Specification A 449. Bolts for general applications, including anchor bolts, are covered by Specification A 449. Also refer to Specification A 449 for quenched and tempered steel bolts and studs with diameters greater than 1-1/2"" but with similar mechanical properties.| TYPE 1 | Medium carbon, carbon boron, or medium carbon alloy steel. |
| TYPE 2 | Withdrawn November 1991. |
| TYPE 3 | Weathering steel. |
| T | Fully threaded A325. (Restricted to 4 times the diameter in length) |
| M | Metric A325. |
| SC | Slip critical connection. |
| N | Bearing type connection with threads included in the shear plane. |
| X | Bearing-type connection with threads excluded from the shear plane. |
| Size | Tensile, ksi | Yield, ksi | Elong. %, min | RA %, min |
| 1/2 - 1 | 120 min | 92 min | 14 | 35 |
| 1-1/8 - 1-1/2 | 105 min | 81 min | 14 | 35 |
| Nuts | Washers | |||
| Type 1 | Type 3 | Type 1 | Type 3 | |
| Plain | Galvanized | Plain | ||
| A563C, C3, D, DH, DH3 | A563DH | A563C3, DH3 | F436-1 | F436-3 |
| Note: Nuts conforming to A194 Grade 2H are a suitable substitute for use with A325 heavy hex structural bolts. The ASTM A563 Nut Compatibility Chart has a complete list of specifications. | ||||
Difference between a bolt, a screw and a stud? quora what is the difference between a bolt, a screw and a stud? quora quora what is the difference between a bolt a screw and a stud similar the rod with threads and a head is a bolt, and alongside it is a nut. Screw an externally threaded fastner capable of being inserted into the holes inside assembled parts (now comes the difference) of mating with a pre formed internal thread or forming it’s own thread is called a screw. A ” url?q in.Answers.Yahoo question index. The rod with threads and a head is a bolt, and alongside it is a nut. Screw an externally threaded fastner capable of being inserted into the holes inside assembled parts (now comes the difference) of mating with a pre formed internal thread or forming it’s own thread is called a screw , a universally accepted distinction between a screw and a bolt does not exist. The machinery’s handbook describes the distinction as follows []. , . The distinction between a bolt and a screw is unclear and there are several practical differences, but most have a screw is a fastener that has a ridge or thread encircling the entire length of the device, while a bolt has a smooth shaft and a threaded end. Screws have heads with a depression indicating the type of driver necessary for fastening. Bolt heads are manipulated with a wrench and often have hexagonal designs sadly, a universally accepted distinction between bolts and screws does not exist. The machinery’s handbook describes the distinction as follows . , bolt vs screw fasteners are devices that are used to hold or join objects together. They are very useful in closing sides or openings of everyday however, a better interpretation of the differences between the two is that bolts are always fitted with nuts. On the contrary, screws are normally used with tapped , know what the difference is? read this article. Also discussed here are different types of bolts and screws, common applications and more. Bolt , the simple answer is the difference between bolts and screw are the applicable standards which define the requirements for the threads, and diy network explains the different types of hardware used for hanging pictures, doing woodworking and a variety of repair projects , difference between bolt,screw and stud. . You can answer this question . You can like the best answer . You can sha the difference between bolts and screws are usually obvious and there are also others asking the difference between pipes and tubes what are the differences between a hex cap screw and a hex bolt? provided as a hex cap screw, whereas astm a a is a common hex bolt specification what’s the difference between a bolt and a screw? most sources (like the machinery’s handbook) define screws and bolts in terms of how they are installed if , bolts are usually defined as a threaded fastener intended to be mated with a nut, while a screw can engage either preformed or self made , how refreshing to find someone else who knows the difference between a bolt and a set screw. Look through all the sellers on ebay and you a comprehensive guide to bolts and screws. Flat washers are generally used between the nuts and wood surfaces machine bolt. These are rodlike threaded