ASTM A307 Grade A Hex Bolts Hex Cap Screws
Standard: ASME B18.2.1
(Various types of configuration are also available)
Thread Size: 1/4”-4” with various lengths
Grade: ASTM A307 Grade A
Finish: Black Oxide, Zinc Plated, 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 A307
The ASTM A307 specification covers carbon steel bolts and studs ranging from 1/4″ through 4″ diameter. This is your everyday, run of the mill bolt specification often manufactured using A36 round bar. There are three grades A, B, and C* which denote tensile strength, configuration, and application. Refer to the Mechanical Properties Chart for the subtle strength differences within each grade.
| A | Headed bolts, threaded rods and bent bolts intended for general applications. |
|---|---|
| B | Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges. |
| C* | Nonheaded anchor bolts, either bent or straight, intended for structural anchorage purposes. The end of a grade C anchor bolt intended to project from the concrete will be painted green for identification purposes. Permanent marking is a supplemental requirement. *As of August 2007, grade C has been replaced by specification F1554 grade 36. We will continue to supply grade C, if required by the project. |
| Grade | Tensile, ksi | Yield, min, ksi | Elong %, min |
|---|---|---|---|
| A | 60 min | -- | 18 |
| B | 60 - 100 | -- | 18 |
| C* | 58 - 80 | 36 | 23 |
| Element | Grade A | Grade B |
|---|---|---|
| Carbon, max | 0.29% | 0.29% |
| Manganese, max | 1.20% | 1.20% |
| Phosphorus, max | 0.04% | 0.04% |
| Sulfur, max | 0.15% | 0.05% |
| Nuts | Washers | ||
|---|---|---|---|
| A307 Grades A & C* | A307 Grade B | ||
| 1/4 - 1-1/2 | 1-5/8 - 4 | 1/4 - 4 | |
| A563A Hex | A563A Heavy Hex | A563A Heavy Hex | F844 |
Websit: https://www.jm-industry.com
Class 8.8,10.9,12.9 plow bolts with black oxide finish
Now I would like to introduce our plow bolt.
The plow bolts in IFI and DIN standard is availiable for you.
The major grade of plow bolts in IFI standard we manufactured before is SAE J429 Gr.2, Gr.5,and Gr.8; ASTM A307 and Class 8.8,10.9,12.9,this is the Plow bolt with Class 12.9, you see, this is grade mark 12.9, and this is the manufacture mark “JM”,and those are all black oxide finish.
Shanghai jian & mei is a pofessional manufacturer of bolt products,our products are mainly applied in Structural Steel,Metal Buliding,Oil&Gas,Tower&Pole,Wind,Energy,Mechanical Machine,Automobile,Home Decorating and so on.
We keep full rang sizes.
the Materials could be Carbon Steel, Alloy Steel, Stainless Steel and Brass.
Availiable Grade of bolts could be SAE J429 Gr2, 5, 8,ASTM A325,A307,A490,ASTM A193 B7 and class 4.8 6.8 8.8,10.9,12.9,
The finish could be Zinc Plated,yellow zinc plated,Black oxide, H.D.G and so on.
we export quality plow bolts to American market for more than 8 years and enjoyed very good reputation,we are your reliable fastener supplier!
Wecome to contact us any time!
Shanghai Jian & Mei Industry and Trade Co., Ltd
Rm.27202, No.295 South Lingyan Road, Pudong,Shanghai,P.R.C, Code:200126
Tel: 0086-21-33328690-8058
Fax: 0086-21-68413263
Web：www.jm-industry.com
Contact: Mrs.Xarella Huang
Email: Jminfo@jm-industry.com
Websit: https://www.jm-industry.com
https://www.cncmachingparts.com/
Jiesheng Hardware located in QiaotouTown Dongguan city Guangdong Province, now we has all kinds of imported machines, CNC computer lathe , computer processing center, precision automatic lathe, screw machines.