-
Email
sales@tubotechalloys.com -
Phone
+91 9769961320 -
Address
Pathan Durgadevi Udyan, Ground Floor, 25 Plot No 74/80, Patra Chawl, Maruti , Mandir Marg, Second Street, Girgaon, Mumbai, Maharashtra 400004
Phone
+91 9769961320Address
Pathan Durgadevi Udyan, Ground Floor, 25 Plot No 74/80, Patra Chawl, Maruti , Mandir Marg, Second Street, Girgaon, Mumbai, Maharashtra 400004At Tubotech, we seek to bring in significant innovation in the tube and piping systems. Since Bolt Fasteners play a major role in providing leak-proof connections, we aim to offer quality types at affordable prices. So, be it flanged joints, valve assemblies, or support structures, we offer it all.
More importantly, our primary objective at Tubotech is to present for your tube and piping business Bolt fasteners designed to specifically perform under extreme conditions. Therefore, they’re able to resisting vibration, stress, and corrosion. Above all, we intend to make sure that we present bolt fasteners that function as the cornerstone of safe and brilliant piping solutions.
A few specifications about Bolt Fasteners that you need to know is given in the table below:
| Specification | Details |
|---|---|
| Diameter Range | M6 – M72 (Metric) / 1/4″ – 3″ (Inch) |
| Length Range | 10 mm – 500 mm (custom lengths on request) |
| Thread Types | Metric (coarse/fine), UNC, UNF, BSW, BSF, Acme |
| Head Types | Hex Head, Socket Head, Countersunk, Button Head, Flange Bolt |
| Materials | Carbon Steel, Stainless Steel (A2, A4), Alloy Steel, Brass, Duplex Steel |
| Strength Grades | Metric: 4.6, 5.6, 8.8, 10.9, 12.9 / Imperial: SAE Grade 2, 5, 8 |
| Finishes / Coatings | Zinc Plated, Hot-Dip Galvanized, Black Oxide, PTFE Coated, Dacromet |
| Standards | ISO, DIN, ASTM, BS, ASME, JIS |
| Tensile Strength | 400 MPa to 1,200 MPa (depending on grade and material) |
| Applications | Piping systems, flange connections, industrial machinery, structural joints |
The common chemicals found in Bolt Fasteners, along with their percentage, are given in the table below:
| Material / Grade | C (Carbon) | Mn (Manganese) | P (Phosphorus) | S (Sulfur) | Si (Silicon) | Cr (Chromium) | Ni (Nickel) | Mo (Molybdenum) |
|---|---|---|---|---|---|---|---|---|
| Carbon Steel (Grade 4.6) | ≤ 0.55% | ≤ 0.80% | ≤ 0.06% | ≤ 0.06% | ≤ 0.10% | — | — | — |
| Alloy Steel (Grade 8.8) | 0.25–0.55% | 0.50–1.50% | ≤ 0.04% | ≤ 0.05% | 0.10–0.35% | — | — | — |
| Stainless Steel (A2-70 / SS 304) | ≤ 0.08% | ≤ 2.00% | ≤ 0.045% | ≤ 0.030% | ≤ 1.00% | 18.0–20.0% | 8.0–10.5% | — |
| Stainless Steel (A4-80 / SS 316) | ≤ 0.08% | ≤ 2.00% | ≤ 0.045% | ≤ 0.030% | ≤ 1.00% | 16.0–18.0% | 10.0–14.0% | 2.0–3.0% |
| ASTM A193 B7 (Alloy Steel) | 0.37–0.49% | 0.65–1.10% | ≤ 0.035% | ≤ 0.040% | 0.15–0.35% | — | — | — |
Given below is a table showing the mechanical properties of Bolt Fasteners belonging to different types of grades used in various industrial and structural applications:
| Tensile Strength (MPa) | ≥ 400 | ≥ 800 | ≥ 1,000 | ≥ 1,200 | ≥ 700 | ≥ 800 |
| Yield Strength (MPa) | ≥ 240 | ≥ 640 | ≥ 900 | ≥ 1,080 | ≥ 450 | ≥ 600 |
| Elongation (%) | ≥ 22 | ≥ 12 | ≥ 9 | ≥ 8 | ≥ 20 | ≥ 18 |
| Hardness (HB) | 116–149 | 217–248 | 302–353 | 353–382 | 200–250 | 200–290 |
| Proof Load (MPa) | ~225 | ~580 | ~830 | ~970 | ~500 | ~600 |
| Shear Strength (MPa) | ~240 | ~480 | ~600 | ~720 | ~450 | ~500 |
These fittings are crucial in ensuring smooth, dependable, and ordinary fluid and gas waft at some stage in various high-stakes programs.
Typically, there are about 11 types of Bolt Fasteners available. There are as follows:
In terms of size, Bolt Fasteners can be measured using both metric and imperial dimensions. They are given in the table below:
| Nominal Diameter (mm) | Common Lengths (mm) |
|---|---|
| M5 | 10 – 60 |
| M6 | 10 – 100 |
| M8 | 16 – 150 |
| M10 | 20 – 200 |
| M12 | 25 – 250 |
| M16 | 30 – 300 |
| M20 | 40 – 300 |
| M24 | 50 – 400 |
| M30 | 60 – 500 |
| M36 | 80 – 500+ |
Nominal Size (inches) | Common Lengths (inches) |
|---|---|
1/4″ | 1/2″ – 4″ |
5/16″ | 1/2″ – 6″ |
3/8″ | 3/4″ – 8″ |
1/2″ | 1″ – 10″ |
5/8″ | 1″ – 12″ |
3/4″ | 1 1/2″ – 14″ |
1″ | 2″ – 16″+ |
It is based on the standard hex bolts (full thread), made from carbon steel (ISO metric sizes) all information about the weight of bolt fasteners is given in the table below:
| Bolt Size (M) | Length 20 mm | Length 40 mm | Length 60 mm | Length 80 mm | Length 100 mm | Length 150 mm |
|---|---|---|---|---|---|---|
| M6 | 1.05 | 1.65 | 2.25 | — | — | — |
| M8 | 1.70 | 3.20 | 4.50 | 5.80 | — | — |
| M10 | 2.60 | 4.90 | 6.80 | 8.90 | 10.90 | — |
| M12 | 3.80 | 6.90 | 9.80 | 12.60 | 15.50 | — |
| M16 | 6.80 | 12.40 | 18.00 | 23.50 | 29.50 | 42.50 |
| M20 | 10.20 | 18.60 | 27.00 | 35.50 | 44.00 | 66.50 |
| M24 | 15.40 | 28.10 | 40.80 | 53.50 | 66.00 | 96.00 |
| M30 | 28.50 | 49.50 | 70.00 | 91.00 | 112.00 | 150.00 |
Due to their high Corrosion Resistance, bolt fasteners are used in a wide range of industrial applications. These are as follows:
We at Tubotech provide you with a few reasons that would make you choose us as suppliers for Bolt Fasteners for your piping business. They are as follows:
Choose Tubotech for your subsequent project concerning Bolt Fasteners and benefit from reliability and quality. Whether your requirement is small batch or bulk export, our technical institution is here to help you.
Tubotech delivers precision-engineered tubing, fittings, and fasteners with innovative solutions and customizable options. Trusted for quality and durability, we serve industries requiring reliable, high-performance piping and instrumentation products.