ASTM A325M 8S Metric Size 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/ANSI B18.2.3.7M
Thread Size: M12-M36 with various length
Grade: ASTM A325M Type-1
Grade Marking: A325M 8S
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.
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| TYPE 2 | Withdrawn November 1991.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. | ||||
Hi, I’m Caroline Rider of Rider Horsemanship. This month’s Holistic Horse “Ask the Expert” Q&A is about “Re-training the Ex-Racehorse.” This month’s viewer question is: “Dear Caroline, I recently adopted a former racehorse who is pretty up and disconnected. I love your method and would like to know how you would begin applying your method when re-training the ex racehorse?”
I begin every horse that comes to me, whether a young untrained horse or a horse that needs to be restarted, the same way. I have specifically designed exercises, and in a systematic program of application, so that each horse has an opportunity to engage, connect, work through triggers and learn.
I have three key training areas to focus on, develop, when training and “re-starting.” These core areas establish trust, respect and leadership thus creating the relationship, bond, I need and want to take into the work:
1) Connecting, focusing, paying attention
2) Establishing, Developing Relaxation
3) Feeling Ease, Safe and Comfortable
I begin each horse at liberty and in the structure of a round pen or round corral. This space and the techniques, exercises, I use assist in acquiring the horse’s focus, attention, on me. This is the first area I work on. If I don’t have the horse’s eye and ears joined with mine, hooked on me, I don’t have their mind. I need and want their mind as this is where a trusting, open learning frame of mind begins. Their body will hook on and follow once the mind does.
Creating the space for the horse – energetically and structurally, to feel safe is most important when re-habing, re-starting horses. We also want to develop a horse’s left brain, cognitive side. Horses are hard-wired to live in their right brain, their sensory awareness. The more hyper-vigilant, spooky, sensitive a horse is the more they are reacting to their surroundings and not thinking. The techniques, exercises I include in this video, are about both exercising the horses mind, especially his left brain – his thinking side and getting him to connect, trust me.
Also, when rehabbing, which I am doing with Billy, I am working on getting him to release more endorphins. He is an “adrenaline junky” meaning he is use to getting “high” on adrenaline and living his life in that state of Being. My job is to get him to release his tension, stress, and begin to relax into the work thus produce natural endorphins – the “feel good” hormones. Please click here for more information: https://www.riderhorsemanship.com/pdf-2014/Rehab-the-Rescue-Horse.pdf.
The following educational DVD’s will assist you in developing this level of connection when training and rehabilitating:
- Discovering the Spirituality of Horsemanship: https://www.shoppingcartdepot.com/c/RH-2011/products/DVD-DSH/7Q7t7H7N7Mw
- Round Pen Approach: https://www.shoppingcartdepot.com/c/RH-2011/products/DVD-Vol1-DVD1/7l7V707k7Z2
- Lunging with a Purpose: https://www.shoppingcartdepot.com/c/RH-2011/products/DVD-Single-Lunging/7Q7t7H7N7Mw
Please visit www.riderhorsemanship.com for more education materials, DVD’s, clinic opportunities, training and the TAO of Horsemanship Online Foundation Course.
Thank you and may you always be one with your horse! Caroline
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