
Visionalloy is a prominent company serving one of the rarest of rare fasteners known as ASTM A307 Bolts, which are engulfing the mechanical and chemical needs in their specification for carbon steel bolts. However, the three variating grades are named grade A and grade B, along with grade C, which is carbon steel bolts and is also considered by the specification of these fasteners. The intended usage, along with the tensile strength, is the actual designation of ASTM A307 Bolts.
Category wise each fasteners indication suggests their major use and specialty for information grade A category having ASTM A307 Carbon Steel Bolts serves tensile strength (minimum) by 60 KSI, which is usually used for general purpose applications. And the grade 2 category has ASTM A 307 Screws, which gives tensile strength from 60 KSI to 100 KSI. Exactly the contrasting applications seek both fasteners. In simple terms, grade 2 is used by the applications pipping system having flanged iron joints, and the general-purpose application just uses grade A. However, on the next side, we have the grade C category having ASTM A307m Hex Nut, which serves yield strength by 36 KSI.
ASTM F1554 Gr.36 is the official replacement in grade C fasteners. According to the specimen sampling specification, quality testing for the ASTM A307 Socket Head Fasteners is highly mandatory to note some stringent values of various parameters. The parameters are not just about the chemical section but also the elongation, hardness, yield point, and tensile section and the dimension embedded in the mechanical attributes. Although the above parameters’ checking is conducted, it must not be considered for the other segments such as forming screws or thread cutting, machine screws, and mechanical expansion along with other similar fasteners that are externally threaded
SA307 Hex Bolts and Nuts Manufacturer in India, Refer Dimension
| Ready Stock: | 1/4″ through 4″ |
|---|---|
| Custom Sizes: | Available |
| Length: | 3mm to 200mm |
| International Standard: | DIN 931, DIN 970, DIN 933,ASME B18 2.2 and ASME B18 2.1 |
| European and American Standard: | ASTM A307, ASME SA 307 |
| Raw Material Origin: | New Zealand, Algeria, United Kingdom, SA, Europe, Morocco, South Africa, Australia, India etc |
| Suitable Environment: | Non Critical |
| Finish: | Phosphating, HDG, Oxidation, Plain |
| Thread Pitch: | Fine Thread and Coarse Thread |
| Threads: | Rolled, UNJ, UNC, UNF, UNR |
| Temperature Range: | -20°F to 450°F |
| MTC: | EN 10204 3.1B |
| To Know About Latest Price List of ASTM A307 Bolts Please Contact Us | |

ASTM A307 Threaded Rod

A307 Galvanized Bolt

A307M Through Bolts
Table of Content
- ASTM A307 Fasteners Specification
- A307 Gr B Threaded Rod Size Chart
- ASTM A307 Bolt Torque Chart
- Price List of ASTM A307 Metric Bolts
- SA307 Hex Bolts Chemical Composition
- Types of ASME SA307 Fasteners
- A307 Heavy Hex Bolt Mechanical Properties
- A307 Anchor Bolts Recommended Nuts and Washers
- A307 Gr A Stud Bolt Equivalent Properties
ASME SA 307 Carbon Steel Stud provides some amazing features like being lightweight, accurate by dimensions, robust construction, and many more, which is all the way hard-worked did by our professional team which has the only aim of quality serving, such that various checking based on quality parameters are conducted on each grade manufactured.
The ASME SA 307 Studs are produced in major volumes due to different industries’ numerous demands coming daily. Customers if need basic size grade we serve them very fast. Still, for dimensional customization, our experts’ time to delivery is slightly farther due to dimensional checking done by our experts such that the client receives the best quality than any other dealer.
Formation of nickel carbonyl takes place at temperature by 40 Degree C to 80 Degree C possessing sulphur catalyst where carbon monoxide complies ASME SA 307 Fasteners’ reaction. ASME SA Grade B Fasteners nickel distillation gives creation to pentacarbonyl (served by iron), which is again a low process along with the introduction of dicobalt octacarbonyl takes place.
- 1/4″ through 4″
- Up to 12 feet
- -20°F to 450°F
- 60000 PSI

- 36,000 psi
- 121 – 241 BHN
- UNF
- BSF
- UN8
- UNC
- UNR
- Bolt
- Nuts
- Threaded rod
- Screws
- Stud bolt
- Washer
- Hex bolt
- Socket Cap
- Oval
- Pan
- Round
- Truss
- Flat
- Hexagon
Supplier of A307 Steel Threaded Rod in Different Sizes, Check Torque Chart
Vision Alloys is Specialized ASTM A307 Bolts Manufacturer in India Offers Custom Sizes
| Thread Size | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 | M20 | |
| Major Dia | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 16 | 20 | |
| Thread Pitch (mm) | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | |
| Tapping Drill Size | 2.5 | 3.3 | 4.2 | 5 | 5.8 | 8.5 | 10.2 | 14 | 17.5 | |
| Bolt Size | 1⁄4 | 3⁄8 | 5⁄16 | 7⁄16 | 11⁄8 | 9⁄16 | 1⁄2 | 5⁄8 | 7⁄8 | 3⁄4 | 1 | 11⁄4 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TPI | 20 | 16 | 18 | 14 | 7 | 12 | 13 | 11 | 9 | 10 | 8 | 7 | |
| Proof Load (lbs)1 | 1,053 | 2,567 | 1,735 | 3,521 | 25,271 | 6,028 | 4,700 | 7,485 | 15,301 | 11,062 | 20,071 | 32,093 | |
| Clamp Load (lbs)2 | 790 | 1,925 | 1,302 | 2,640 | 18,953 | 4,521 | 3,525 | 5,614 | 11,476 | 8,297 | 15,053 | 24,070 | |
| Tightening Torque (ft lbs) | Galv+Waxed | 2 | 6 | 3 | 10 | 178 | 21 | 15 | 29 | 84 | 52 | 125 | 251 |
| Galv | 4 | 15 | 8 | 24 | 444 | 53 | 37 | 73 | 209 | 130 | 314 | 627 | |
| Plain | 3 | 12 | 7 | 19 | 355 | 42 | 29 | 58 | 167 | 104 | 251 | 501 | |
| Bolt Size | 13⁄8 | 13⁄4 | 11⁄2 | 2 | 33⁄4 | 21⁄2 | 21⁄4 | 23⁄4 | 31⁄4 | 3 | 31⁄2 | 4 | |
| TPI | 6 | 5 | 6 | 41⁄2 | 4 | 4 | 41⁄2 | 4 | 4 | 4 | 4 | 4 | |
| Proof Load (lbs)1 | 38,254 | 62,928 | 46,534 | 82,800 | 3,19,939 | 1,32,480 | 1,07,640 | 1,63,282 | 2,35,152 | 1,97,726 | 2,75,890 | 3,66,970 | |
| Clamp Load (lbs)2 | 28,690 | 47,196 | 34,900 | 62,100 | 2,39,954 | 99,360 | 80,730 | 1,22,461 | 1,76,364 | 1,48,295 | 2,06,917 | 2,75,227 | |
| Tightening Torque (ft lbs) | Galv+Waxed | 329 | 688 | 436 | 1,035 | 7,499 | 2,070 | 1,514 | 2,806 | 4,777 | 3,707 | 6,035 | 9,174 |
| Galv | 822 | 1,721 | 1,091 | 2,588 | 18,746 | 5,125 | 3,784 | 7,016 | 11,941 | 9,268 | 15,088 | 22,936 | |
| Plain | 657 | 1,377 | 873 | 2,070 | 14,997 | 4,140 | 3,027 | 5,613 | 9,553 | 7,415 | 12,070 | 18,348 | |
Exporter of SA 307 Gr B Heavy Hex Bolt as per ASME B18.2.1 Standards at Lowest Price in Mumbai
To Know About ASTM A307 Bolts Price Per Kg in India Please Contact Us A307 Fasteners Price List
Check ASTM A307 Galvanized Bolts Chemical Composition Before Buying the Material
Vision Alloys is Trusted ASTM A307 Bolts Supplier in India
| Element | Mn | C | S | P | Si | Ni | Cr | Mo | Cu |
|---|---|---|---|---|---|---|---|---|---|
| Alloy Group 1, Type 304 | 2.00% | 0.08% | 0.03% | 0.05% | 1.00% | 8.0 to 10.5% | 18.0 to 20.0% | 1.00% | |
| Alloy Group 2, Type 316 | 2.00% | 0.08% | 0.03% | 0.05% | 1.00% | 10.0 to 14.0% | 16.0 to 18.0% | 2.00 to 3.00% |
ASTM A307 Bolts Manufacturer in India, Offers Various Types at Best Price

ASME SA307 Nuts

ASTM A307 Metric Bolts

SA307 Hex Bolts title=SA307 Hex

A307 Heavy Hex Bolt

ASTM A307 Carriage Bolts
Refer ASTM A307 Grade A Studs Mechanical Properties and Recommanded Nuts and Washers
| Alloy Group | 1 | 2 | ||||||
|---|---|---|---|---|---|---|---|---|
| Condition | AF | CW1 | A | CW2 | AF | CW1 | A | CW2 |
| Marking | F594A | F594C | F594B | F594D | F594E | F594G | F594F | F594H |
| Diam Range | 1/4 to 1-1/2 | 1/4 to 5/8 | 1/4 to 1-1/2 | 3/4 to 1-1/2 | 1/4 to 1-1/2 | 1/4 to 5/8 | 1/4 to 1-1/2 | 3/4 to 1-1/2 |
| Proof Stress, Heavy Hex Nuts, ksi | 76 | 108 | 81 | 92 | 76 | 108 | 81 | 92 |
| Proof Stress, Hex Nuts, ksi | 70 | 100 | 75 | 85 | 70 | 100 | 75 | 85 |
| Rockwell Hardness | B85 max | B95 to C32 | B65 to 95 | B80 to C32 | B85 max | B95 to C32 | B65 to 95 | B80 to C32 |
| Bolt | Grade A – 11/2 ” to 4 “ | Grade A – 1/4″ to 11/2 “ | Grade B – 1/4″ to 4 “ |
|---|---|---|---|
| Washer | F844 | F844 | F844 |
| Nut | A563A Heavy hex | A563A Hex | A563A Heavy hex |
| Dia Range | All | All | through 1″ (M24) | through 1″ (M24) | above 1″ (M24) | All | through 1-1/2″ (M36) | through 1-1/2″ (M36) |
| Metric Grade | 4.6 | 12.9 | 8.8 | 5.8 | 8.8 | 10.9 | 8.8.3 | 10.9.3 |
| Approximate ASTM Equivalent grade | A307A | A574 | A449 | – | A193B7/A354BC or F1554G105 | A490/A354BD | A325 Type 3 / A449 Type 3 | A490 Type 3 |
ASTM A307 Bolts Supplier in India, Provide Quickest Delivery With MTC Reports
| Italy | Germany | Denmark | Ireland | Brazil |
| Nigeria | Poland | Mexico | Netherlands | Singapore |
| Canada | USA | Spain | UK | South Africa |
| UAE | Australia | Qatar | Saudi Arabia | Turkey |
- Vision Alloys is A Manufacturer of Steel Fasteners Company in India
- Dealers and Distributors of Bolting Products in USA, Europe, New Zealand, Algeria, United Kingdom, Morocco, South Africa and Australia, Egypt, Peru, chile, Jordan, Argentina
- Manufacturer and Supplier of Stainless Steel, Nickel Alloy, Titanium, Copper Materials in Mumbai.
- Stockist and Trader of Top Quality High Temperature Alloys for Oil and Gas Industry and Standard & Custom Sizes in EX Stock

