Address
824-825, St.no 2, Murad Pura Rd, Miller Ganj, Ludhiana, Punjab 141001
Hex Bolts
Hex Bolts Manufacturers & Suppliers in India | High Quality Bolts
High-quality, precision-engineered MS hex bolts designed for strong and reliable fastening across industrial and commercial applications.
Hex Bolts Manufacturer in India
Oxford International-JVS Nut Bolt is a trusted MS hex bolt manufacturer in Ludhiana, delivering premium quality fasteners engineered for strength, durability, and long-term performance. Our hex bolts are manufactured using high-grade mild steel and advanced production techniques to ensure precise threading, high tensile strength, and consistent quality.
Our MS hex bolts are widely used in construction, automotive, machinery, and heavy engineering industries where secure fastening is critical.
Types of Hex Bolts
We manufacture and supply
MS Hex Bolts (Mild Steel Hex Bolts) are widely used in general construction and engineering projects.
8.8 Grade Hex Bolts are high-tensile fasteners designed for medium to heavy-duty applications.
10.9 Grade Hex Bolts are heavy-duty fasteners suitable for demanding industrial environments.
GI Hex Bolts (Galvanized Iron Hex Bolts) are coated to provide excellent corrosion resistance.
Zinc Flake Hex Bolts provide strong corrosion protection and are widely used in automotive and industrial applications.
White Zinc Hex Bolts feature a protective zinc coating that improves durability and corrosion resistance.
Yellow Zinc Hex Bolts are electroplated with a yellow zinc coating that enhances both appearance and corrosion protection.
Trivalent Zinc Hex Bolts are environmentally friendly coated fasteners that offer excellent corrosion resistance.
Olive Green Hex Bolts are coated fasteners designed for specialized industrial and automotive applications.
Auto Black Hex Bolts are commonly used in the automotive and machinery industries due to their strong finish.
Blue Zinc Hex Bolts are coated with a blue zinc finish that provides enhanced corrosion resistance.
Hot Dip Galvanized Hex Bolts provide superior protection against rust and harsh environmental conditions.
🔩 Hex Bolt Usage Across Industries
Reliable fastening solutions powering multiple industrial applications
Designed to deliver strength, durability, and long-term performance.
Automotive Industry
Automotive bolts provide strong and reliable fastening for vehicle structural and mechanical parts.
Construction Industry
Durable bolts withstand heavy loads and harsh environmental conditions on construction sites.
Manufacturing Industry
Manufacturing-grade bolts provide strong and reliable fastening for production line machinery.
Aerospace Industry
Aerospace bolts with stand extreme vibration, pressure, and temperature conditions during flight.
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Specifications Reference
Hex Bolt — Complete Specifications & Grade
JVS Nut Bolt · Manufacturer in Ludhiana, India · All dimensions as per IS 1364, DIN 931 & ISO 4014 standards
Hex Bolt Size & Dimensions Chart
Standard hex bolt dimensions as per IS 1364 / DIN 931 / ISO 4014. All measurements in millimetres (mm).
| Nominal Size | Thread Pitch (Coarse) | Width Across Flats S (mm) | Width Across Corners E (mm) | Head Height K (mm) | Min Thread Length (mm) | Common Length Range (mm) | Approx. Weight (per 100 pcs, kg) |
|---|---|---|---|---|---|---|---|
| M5 | 0.80 | 8.0 | 9.24 | 3.5 | 16 | 10 – 50 | 0.40 – 1.2 |
| M6 | 1.00 | 10.0 | 11.55 | 4.0 | 18 | 10 – 80 | 0.55 – 2.4 |
| M8 | 1.25 | 13.0 | 15.01 | 5.3 | 22 | 12 – 120 | 1.20 – 8.5 |
| M10 | 1.50 | 17.0 | 19.64 | 6.4 | 26 | 16 – 150 | 2.30 – 18 |
| M12 | 1.75 | 19.0 | 21.94 | 7.5 | 30 | 20 – 200 | 3.80 – 38 |
| M14 | 2.00 | 22.0 | 25.40 | 8.8 | 34 | 25 – 200 | 5.80 – 55 |
| M16 | 2.00 | 24.0 | 27.71 | 10.0 | 38 | 25 – 250 | 8.50 – 95 |
| M18 | 2.50 | 27.0 | 31.18 | 11.5 | 42 | 30 – 250 | 12 – 130 |
| M20 | 2.50 | 30.0 | 34.64 | 12.5 | 46 | 35 – 300 | 16 – 180 |
| M22 | 2.50 | 32.0 | 36.95 | 14.0 | 50 | 40 – 300 | 22 – 240 |
| M24 | 3.00 | 36.0 | 41.57 | 15.0 | 54 | 45 – 300 | 30 – 290 |
| M27 | 3.00 | 41.0 | 47.34 | 17.0 | 60 | 50 – 300 | 45 – 380 |
| M30 | 3.50 | 46.0 | 53.12 | 18.7 | 66 | 55 – 360 | 62 – 500 |
| M33 | 3.50 | 50.0 | 57.74 | 21.0 | 72 | 60 – 360 | 85 – 640 |
| M36 | 4.00 | 55.0 | 63.51 | 22.5 | 78 | 65 – 400 | 115 – 820 |
| M42 | 4.50 | 65.0 | 75.07 | 26.0 | 90 | 80 – 400 | 195 – 1200 |
Standard
IS 1364 Part 1, DIN 931, ISO 4014
Tolerance
6g thread tolerance (standard); 6H available on request
Custom Lengths
Non-standard lengths available — contact us with drawing
Fine Thread
Fine pitch (e.g. M12×1.25) available on request
Hex Bolt Grade & Mechanical Properties
Tensile strength, yield strength & hardness for each grade as per IS 1367 / ISO 898-1.
| Grade | Material | Proof Load Stress (MPa) | Min. Yield Strength (MPa) | Min. Tensile Strength (MPa) | Vickers Hardness (HV) | Best For |
|---|---|---|---|---|---|---|
| 4.6 | Low carbon steel (MS) | 225 | 240 | 400 | 120 – 220 | General construction, light structural, non-critical fastening |
| 5.6 | Low carbon steel (MS) | 310 | 340 | 420 | 130 – 220 | Light machinery, general-purpose fastening, agricultural equipment |
| 8.8 | Medium carbon steel (quenched & tempered) | 580 | 640 | 800 | 245 – 335 | Structural steel, automotive, heavy machinery, bridges — most common industrial grade |
| 10.9 | Alloy steel (quenched & tempered) | 830 | 940 | 1040 | 320 – 380 | Heavy-duty automotive, earthmoving equipment, high-load structural connections |
Material & Surface Finish Options
Hex bolt variants manufactured by JVS Nut Bolt — with corrosion resistance ratings and recommended applications.
| Finish Type | Base Material | Coating | Corrosion Resistance | Temp. Resistance | RoHS Compliant | Key Applications |
|---|---|---|---|---|---|---|
| MS (Plain) | Mild Steel | None (bare steel) | Low | Up to 300°C | Yes | Interior use, painted assemblies, temporary structures |
| GI (Galvanized Iron) | Mild Steel | Electro-galvanized zinc | Medium | Up to 200°C | Yes | General outdoor use, light construction, electrical panels |
| Hot Dip Galvanized (HDG) | Mild Steel | Hot-dip zinc (85–100 μm) | Very High | Up to 200°C | Yes | Heavy outdoor structures, bridges, solar mounting, coastal construction |
| White Zinc | Mild Steel / 8.8 | Zinc electro-plating (8–12 μm), clear chromate | Medium | Up to 120°C | Yes | Automotive interiors, electronics, appliances, general manufacturing |
| Yellow Zinc | Mild Steel / 8.8 | Zinc electro-plating + yellow chromate | Medium-High | Up to 120°C | Check | Automotive, hardware, general industrial — visible fastener applications |
| Trivalent Zinc | Mild Steel / 8.8 | Zinc + trivalent chromate (Cr³⁺) | Medium-High | Up to 200°C | Yes | Automotive OEM, EV manufacturing, export products — EU RoHS preferred |
| Zinc Flake | Mild Steel / 10.9 | Zinc-aluminium flake (Geomet® type, 8–12 μm) | Very High | Up to 250°C | Yes | Automotive chassis, suspension, brake systems, wind energy towers |
| Olive Green | Mild Steel / 8.8 | Zinc flake + olive-green topcoat | Very High | Up to 250°C | Yes | Defence, military vehicles, off-road equipment, industrial machinery |
| Auto Black (Black Oxide) | Mild Steel / 8.8 / 10.9 | Black oxide chemical conversion | Low-Medium | Up to 300°C | Yes | Automotive engines, hydraulic equipment, tool assemblies, precision machinery |
| Blue Zinc | Mild Steel / 8.8 | Zinc electro-plating + blue chromate | Medium | Up to 120°C | Yes | Two-wheeler manufacturing, light automotive, colour-coded assemblies |
Coarse Thread vs Fine Thread — Pitch Reference
Standard (coarse) and fine pitch options for common hex bolt sizes. Fine pitch available on special order.
| Nominal Size | Coarse Pitch (mm) | Fine Pitch 1 (mm) | Fine Pitch 2 (mm) | Threads per Inch (TPI) — Coarse | When to use Fine Thread |
|---|---|---|---|---|---|
| M6 | 1.00 | 0.75 | — | ~25 | Precision instruments, thin-walled tubes, vibration-critical assemblies |
| M8 | 1.25 | 1.00 | 0.75 | ~20 | Automotive (engine), pneumatics, precision tooling |
| M10 | 1.50 | 1.25 | 1.00 | ~17 | Hydraulic systems, pressure vessel flanges, bearing housings |
| M12 | 1.75 | 1.50 | 1.25 | ~14 | Automotive wheel bolts, gearboxes, precision structural joints |
| M14 | 2.00 | 1.50 | — | ~12 | Two-wheeler frame joints, suspension components |
| M16 | 2.00 | 1.50 | — | ~12 | Heavy automotive, CNC machine beds, flange connections |
| M20 | 2.50 | 2.00 | 1.50 | ~10 | Process equipment, heavy flange joints, structural adjustment bolts |
| M24 | 3.00 | 2.00 | — | ~8 | Heavy structural, wind turbine towers, large machinery |
| M30 | 3.50 | 2.00 | — | ~7 | High-load structural, mining equipment, large press tooling |
Standards & Certifications Compliance
Indian and international standards covered by JVS Nut Bolt hex bolt manufacturing.
| Standard | Issuing Body | Scope | Grade / Type Covered | Available at JVS |
|---|---|---|---|---|
| IS 1364 Part 1 | Bureau of Indian Standards (BIS) | Hexagon head bolts and screws — dimensions | All grades | Yes |
| IS 1367 Part 3 | Bureau of Indian Standards (BIS) | Mechanical properties of fasteners — bolts, screws, studs | 4.6, 4.8, 8.8, 10.9, 12.9 | Yes |
| IS 12427 | Bureau of Indian Standards (BIS) | Hexagon bolts & nuts — coarse pitch | All grades | Yes |
| DIN 931 | Deutsches Institut für Normung (Germany) | Hex head bolts, partial thread — dimensions | All grades | Yes |
| DIN 933 | Deutsches Institut für Normung (Germany) | Hex head bolts, full thread — dimensions | All grades | Yes |
| ISO 4014 | International Organization for Standardization | Hexagon head bolts — product grades A and B | 4.6, 8.8, 10.9 | Yes |
| ISO 4017 | International Organization for Standardization | Hexagon head screws — full thread, product grades A and B | 4.6, 8.8, 10.9 | Yes |
| ISO 898-1 | International Organization for Standardization | Mechanical properties of bolts, screws and studs | All grades | Yes |
Which Hex Bolt Grade Do You Need?
Match your application to the right grade and finish. Use this as a buying guide for procurement teams.
| Your Application | Recommended Grade | Recommended Finish | Size Range (typical) | Load Type |
|---|---|---|---|---|
| General construction, RCC framework | 4.6 / 8.8 | GI or HDG | M12 – M30 | Static load, shear |
| Structural steel (bridges, towers) | 8.8 | HDG | M20 – M36 | High tensile + shear |
| Automotive engine & chassis | 10.9 | Zinc Flake or Trivalent Zinc | M8 – M20 | Vibration + fatigue |
| Two-wheeler & light automotive | 8.8 | Blue Zinc or Yellow Zinc | M6 – M16 | Vibration |
| Solar panel mounting structures | 8.8 | HDG or SS 316 | M8 – M16 | Static outdoor load |
| Heavy machinery & presses | 10.9 | Auto Black | M16 – M42 | High clamping force |
| Railway infrastructure | 8.8 / 10.9 | HDG | M20 – M36 | Vibration + fatigue |
| Defence / military vehicles | 10.9 | Olive Green | M8 – M24 | Vibration + corrosion |
| Offshore / coastal structures | 8.8 | SS 316 or HDG | M12 – M36 | Corrosion + load |
| Process piping & flanges | 8.8 stud bolt | Plain / Zinc | M16 – M30 | Pressure + sealing |
| Agricultural equipment | 4.6 / 8.8 | GI | M8 – M20 | General load |
Frequently Asked Questions
Where can I buy high-strength Hex Bolts in India?
You can buy high-strength Hex Bolts from JVS Nut Bolt, a trusted name among Hex Nuts Manufacturers and Suppliers in India | JVS Nut Bolt. The company supplies products such as 8.8 Grade Hex Bolt, 10.9 Grade Hex Bolt, and Hot Dip Galvanized Hex Bolt used in structural and heavy-duty industrial applications across India.
What types of Hex Bolts are available at JVS Nut Bolt?
JVS Nut Bolt manufactures a wide range of industrial Hex Bolts, including:
MS Hex Bolt
8.8 Grade Hex Bolt
10.9 Grade Hex Bolt
GI Hex Bolt
Zinc Flake Hex Bolt
White Zinc Hex Bolt
Yellow Zinc Hex Bolt
Trivalent Zinc Hex Bolt
Olive Green Hex Bolt
Auto Black Hex Bolt
Hot Dip Galvanized Hex Bolt
These bolts are available in multiple sizes and finishes for different industrial applications.
What industries commonly use Hex Bolts manufactured by JVS Nut Bolt?
Hex Bolts from JVS Nut Bolt are widely used in industries such as:
Construction and infrastructure projects
Automotive and machinery manufacturing
Steel fabrication and engineering works
Industrial equipment assembly
Power and energy sector installations
Products like GI Hex Bolt, Zinc Flake Hex Bolt, and Hot Dip Galvanized Hex Bolt are especially suitable for high-strength and corrosion-resistant applications.
Are corrosion-resistant Hex Bolts available at JVS Nut Bolt?
Yes, JVS Nut Bolt offers several corrosion-resistant Hex Bolts including:
Zinc Flake Hex Bolt
White Zinc Hex Bolt
Yellow Zinc Hex Bolt
Trivalent Zinc Hex Bolt
Hot Dip Galvanized Hex Bolt
Olive Green Hex Bolt
These coatings help protect bolts from rust and environmental damage, making them ideal for outdoor and industrial applications
Do Hex Bolts from JVS Nut Bolt come in different sizes?
Yes, JVS Nut Bolt manufactures Hex Bolts in various sizes and specifications to meet different engineering and construction requirements. Whether you need MS Hex Bolt, GI Hex Bolt, or high-tensile 10.9 Grade Hex Bolt, the company provides customized size options for industrial projects across India.
Why choose JVS Nut Bolt for Hex Bolts in India?
JVS Nut Bolt is a trusted name among Hex Nuts Manufacturers and Suppliers in India | JVS Nut Bolt because of its:
High-quality manufacturing standards
Wide range of Hex Bolt types and coatings
Availability of multiple grades and sizes
Reliable supply for industrial and construction sectors
The company ensures durable, precision-engineered Hex Bolts suitable for demanding industrial applications.
Looking for reliable Hex Bolts Manufacturers and Suppliers in India?
Contact JVS Nut Bolt today for premium quality MS Hex Bolt, 8.8 Grade Hex Bolt, 10.9 Grade Hex Bolt, and Hot Dip Galvanized Hex Bolt.