High Tensile Fasteners
Reliable HT Nut Bolt manufacturer in India
What is High Tensile Fasteners?
High tensile fasteners are made of high strength materials such as medium carbon steel or alloy steel and they heat treated to enhance their strength and mechanical properties. They are specifically designed to withstand high stree, load and tension without failing. High strength nuts and bolts are manufactured as per ISO 898-1 or BS EN 14399 standard.
Table of Content
High Tensile Fasteners Specification

High Tensile Bolt Sizes
M2 to M24
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HT Screw Size
3/6″ to 2″
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High Strength Nuts Size
M3 – M56 | 3/6″ to 2″
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HT Steel Washers Size
M3 – M56 | 3/6″ to 2″
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HT Machine Screws Size
M1.6 – M12
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ISO Standard
ISO 898-1
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High tensile Studs Type
Fully or Fine threaded / Tap-End / Double-End
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Origin
Indian / Korean / Russian / European
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High tensile strength bolts Condition
Threading / Cold Drawn
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High tensile cold forged fasteners Threads
BSF / UNF / METRIC / BSW / UNC
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High tensile strength lag bolts Standards
DIN 976, 931, 934, 7991, 933, 125 / ASME B18.2.1, B18.3
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Custom Sizes
We are Manufacturer of High Tensile fastners in custom sizes
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High Tensile fasteners Length
3 mm to 200 mm
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HT Steel UNC Bolts Thermal Conductivity
45–50 W/m·K
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High Tensile Fasteners Melting Point
1425–1540 °C
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Manufacturing Technique
Hot forging / CNC Machined / Cold forging
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High temp Screws Thread Pitch
Fine Threads / Coarse Threads
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Cold forged high tensile fasteners Finish
Passivation / Phosphating / HDG
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High tensile hex head bolts Head Types
- Slotted hex washer
- Socket cap head
- Button head
- Slotted Drive
- Phillips Drive
- Hex washer head
- Flat
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HT Steel Hex Bolt Drive Style
- Round
- Cross
- Oval
- Truss
- Pan
- Torx
- Hex
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High strength screws Thread Class
- Class 2A (Medium fit)
- 3G
- Class 1A (Loose fit)
- 4G
- 5 ONF
- 2G
- Class 3A (Tight fit)
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Certificate
- UT and PMI Test
- Raw Materials Certificate
- 100% Radiography Test
- EN 10204/3.1B
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Packaging
- Blister Packs
- Wooden Pallet
- Wooden Cases
- Carton Box
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Value Added Services
- Head Shank Drilling
- Laser Etching
- Color Coding
- Head Painting
We are one of the leading High Tensile Fasteners manufacturer in India in M3 to M24 size range. We manufacture High temp bolts as per ISO 898-1 and BS EN 14399.
View updated price list of high tensile automotive bolts and eye bolts
High tensile bolts price list in india
| Product | Price in USD (100 Pcs) |
Price in Dirham (100 Pcs) |
Price in Euro (100 Pcs) |
|---|---|---|---|
| M10X20MM High Tensile Grade 8.8 Bolts, DIN933 | US $0.84 | 3.09 AED | € 0.74 |
| M12X25MM High Tensile Grade 8.8 Bolts, DIN933 Full Thread | US $1.09 | 4.00 AED | € 0.96 |
| M12X50MM High Tensile Grade 8.8 Bolts, DIN933 | US $1.29 | 4.74 AED | € 1.14 |
We are giving 5% discount on high tensile bolts, contact us on [email protected] to get a quote. We are stockist of high strength nuts and bolts in Mumbai and supplying in countries like Germany, Spain, Nigeria, UAE, Malaysia, Indonesia and UAE
Manufacturing Range of High tensile hex head bolts
| Diameter | Length | Thread Type | Standards | Manufacturing Capabilities |
|---|---|---|---|---|
| M5 to M64 | 10 mm to 1000 mm | Metric UNC UNF BSW BSF |
ISO 898-1 DIN 933 / 931 BS 3692 IS 1364 / IS 3757 |
Cold Forging Hot Forging Thread Rolling Heat Treatment |
Leading supplier of cold forged high tensile fasteners and high tensile strength lag bolts
Types of High strength fasteners
High tensile bolts and nuts
HT automotive bolts
High strength allen bolts
HT Steel anchor bolts
high tensile cap screws
High temperature Studs
High strength threaded rod
high tensile steel heavy hex nuts
HT Screws
Cold forged high tensile Stud bolts
High strength Washer
High temp bolts
Reliable High tensile bolts manufacturer in India in zinc plated and galvanised finishes. We have exported these fasteners in wide range of sizes and diameters.
High tensile countersunk bolts and screw used in extensive stress applications
Cold forged High tensile fasteners Operating Temeperature
| Operating Temeperature | -420° to +550°F (-250° to 285°C) |
|---|
Refer specification and grades of high tensile cold forged fasteners and flange bolts which widely used in automotive industry
ASTM F568 High Tensile Lag Bolts chemical composition
| Material grade | Carbon | Manganese | Phosphorus | Sulfur |
|---|---|---|---|---|
| 4.6 | 0.55 max | - | 0.05 | 0.06 |
| 5.6 | 0.13-0.55 | - | 0.05 | 0.06 |
| 6.8 | 0.15-0.55 | - | 0.05 | 0.06 |
| 8.8 | 0.25-0.55 | - | 0.05 | 0.06 |
| 10.9 | 0.25-0.55 | - | 0.05 | 0.06 |
High Tensile F568 Heavy Hex Bolts Melting Point
| Melting Point | 1425–1540 °C |
|---|
Manufacturing process of High Tensile Fasteners
| Size | Nominal (Major) | Head Height | Width Across Flats | ||
|---|---|---|---|---|---|
| Diameter [in] | Min [in] | Max [in] | Min [in] | Max [in] | |
| #2 | 0.086 | 0.04 | 0.05 | 0.12 | 0.125 |
| #4 | 0.112 | 0.049 | 0.06 | 0.181 | 0.188 |
| #6 | 0.138 | 0.08 | 0.093 | 0.244 | 0.25 |
| #8 | 0.164 | 0.096 | 0.11 | 0.244 | 0.25 |
| #10 | 0.19 | 0.105 | 0.12 | 0.305 | 0.312 |
| 1/4" | 0.25 | 0.172 | 0.19 | 0.367 | 0.375 |
| 5/16" | 0.3125 | 0.208 | 0.23 | 0.489 | 0.5 |
| 3/8" | 0.375 | 0.27 | 0.295 | 0.551 | 0.562 |
| Nominal Bolt Diameter | Body Diameter Ds | Head Height, K | Width Across Corners, E | Width Across Flats, S | Wrenching Height, K1 | ||||
|---|---|---|---|---|---|---|---|---|---|
| Max | Min | Max | Min | Max | Min | Max | Min | Min | |
| M36 x 4 | 37 | 35 | 23.55 | 21.72 | 69.28 | 66.44 | 60 | 58.8 | 15.8 |
| M20 x 3.5 | 30.84 | 29.16 | 19.75 | 17.92 | 57.74 | 55.37 | 50 | 49 | 13.1 |
| M24 x 3 | 24.84 | 23.16 | 15.9 | 14.56 | 47.34 | 45.2 | 41 | 40 | 10.5 |
| M20 x 2.5 | 20.84 | 19.16 | 13.4 | 12.12 | 39.26 | 37.29 | 34 | 33 | 8.8 |
| M16 x 2 | 16.7 | 15.3 | 10.75 | 9.68 | 31.18 | 29.56 | 27 | 26.16 | 7 |
| M14 x 2 | 14.7 | 13.3 | 9.25 | 8.51 | 27.71 | 26.17 | 24 | 23.16 | 6.2 |
| M12 x 1.75 | 12.7 | 11.3 | 7.95 | 7.24 | 24.25 | 22.78 | 21 | 20.16 | 5.2 |
DIN 912 High Tensile Bolts Hex Nut Dimensions
| Size | Nominal (Major) | Thickness | Width Across Flats | ||
|---|---|---|---|---|---|
| Dia [in] | Min [in] | Max [in] | Nominal [in] | Min [in] | |
| 3/8" | 0.375 | 0.239 | 0.257 | 5/8"(0.625) | 0.607 |
| 5/16" | 0.312 | 0.208 | 0.225 | 9/16"(0.562) | 0.545 |
| 1/4" | 0.25 | 0.178 | 0.193 | 7/16"(0.438) | 0.423 |
| #10 | 0.19 | 0.117 | 0.13 | 3/8"(0.375) | 0.362 |
| #8 | 0.164 | 0.117 | 0.13 | 11/32"(0.344) | 0.332 |
| #6 | 0.138 | 0.102 | 0.114 | 5/16"(0.312) | 0.302 |
| #4 | 0.112 | 0.087 | 0.098 | 1/4"(0.250) | 0.241 |
| #2 | 0.086 | 0.057 | 0.066 | 3/16"(0.188) | 0.18 |
| #0 | 0.06 | 0.043 | 0.05 | 5/32"(0.156) | 0.15 |
SST life of high tensile bolts
| Salt spray SST life | Above 1000 hrs |
|---|
Features of High tensile imperial bolts
Yes, High tensile bolt can rust if they are not properly coated or protected. To prevent corrosion of these bolts Zinc Plating or Phosphate Coating can be done.
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