Hot Sale Hex Head Bolt Standards:
What is Large Size Hex Head Bolt
Large size (M30-M80) Alloy Hex head bolt with a hexagonal head and machined threads, functions in fastening 2 different parts with a nut, can be manufactured in alloy steel materials (42CrMo, 40CrNiMoA, 35CrMo, 20MnTiB) and into various sizes for specific uses, which is designed to be installed using a spanner. Hexagon bolts are also generally available in large sizes.
Available standard for hexagonal head bolt product
Most common Standards for high strength hexagonal head bolt are EN14399, EN15048, ISO 4014, ISO 4017, DAst 021, etc.
AGICO is a professional large size (M30-M80) high tensile hex head bolt manufacturer, we sell large size hex bolt for high precision, heavy-duty fastening application, widely used in structural and industrial industries, automotive to marine, coastal, and high-temperature environments. Our Hex Head are featured with high tensile strength, cost-effective and wear and tear-resistant, high temperature and low-temperature applications.
Hex Head Bolt Parts Supplied from Factory
Alloy Hex head bolt (M30-M80) can be customized according to drawing and specification provided by customer.
| EN14399 | EN15048 |
|---|---|
| High Strength Structural Bolting assemblies for preloading | Non-preloaded Structural Bolting and Assemblies |
| View More | View More |
(M30-M80)Hex Head Bolt Production
(M30-M80)High Tensile Alloy Hex Head Bolt Supplier
Hexagon head bolt, in short, hex bolt, has many other names: hexagon bolt, hexagonal bolt, hex head screw, machine bolt, etc. AGICO supplies large size hex head bolt from M30-M80 of high tensile strength, for our hex head bolt is hardened through heat treatment.
According to its thread, it can be classified as half thread hex bolt and full thread hex bolt. High-Grade hex head bolts of 8.8, 9.8, 10.9, 12.9 can be supplied for application in high-temperature environments, marine and coastal operations for high anti-corrosion property.
(M30-M80)Hex Head Bolt Specification
| Hexagon Head Bolt Specification | |
|---|---|
| Hex Bolt Size | M30-M80 |
| Other Dimensions according to client’s requirement | |
| Length | 40mm-300mm |
| Raw Material | 42CrMo, 40CrNiMoA, 35CrMo, 20MnTiB. |
| Surface Finish | Plain/black/ zinc plated/H.D.G./dacromet/nickle plated/cadmium plated, etc. |
| Hex Head Bolt Strength Grade | Grade 8.8, Grade 9.8, Grade 10.9, Grade 12.9 |
| Nut Strength Grade | Grade 8, Grade 10, Grade 12 |
| Bolt Washer Strength Grade | 200HV, 300HV |
| Warranty Policy | We confirm our qualities satisfy to 99.9%, and have 6-month quality warranty |
| Hex Head Bolt Standard(GB, ISO, JB/ZQ, DIN, EN) | ISO 4014, ISO 4017 EN 14399/DIN 6914/DIN 6915/ DIN 6916 |
| EN14399, EN15048 | |
| Note | For customized products, Please inform the exact specification of inquiry such as Material, Grade, size etc. |
| if it is special and non-standard products, please supply the drawing or Photos or Samples to us. | |
| Pin standard | ISO 4014, ISO8753; JIS B2808; DIN 7346; ASME B18.8.2, etc |
(M30-M80)Hex Bolt Equivalent Standard (ISO DIN)
| GB | ISO | DIN |
|---|---|---|
| GB5782 | ISO4014 | DIN931 |
| GB5873 | ISO4017 | DIN933 |
(M30-M80)Hexagon Bolt Types
According to the thread length of hex bolt, AGICO supplies both half thread hexagon bolt and full thread hexagon bolt.
Half Thread Hexagon Bolts
Half Thread Hexagon Bolts are produced with an unthreaded part on the bolt, which keeps the bolt with higher strength than a fully threaded hex bolt. Unthreaded part is suitable for the purpose of anti-vibration or used as a dowel, or a component can rotate around it. Fasten and fix the component with the help of a hex nut.
Full Thread Hexagon Bolts
Full Thread Hexagon Bolts, or named hexagon screws, are fully threaded on the bolt below the bolt head. It is designed to fasten the component with no extra space left, the fastening doesn’t need a nut but requires the fastening hole to be threaded. So it functions as the fastening of 2 fully threaded parts. AGICO supplies fully thread hex bolts which can be inserted into threaded hole completely.
(M30-M80)Hex Head Bolt CE Certification:
AGICO hex head bolt fastener product has passed EN15048-1 (non-preloaded bolt assembly) and EN14399-1 (preloaded bolt assembly) certification. Non-preloaded bolt components must comply with EN 15048. Pretension bolt assembly must comply with EN14399.
For size requirements, relevant product standards (ISO4017, ISO4014, ISO 4032, ISO7091, ISO7090 or ISO7098, etc.) should be used. Pre-tensioning bolt assembly-System HR needs to comply with EN14399 part 3, HR nut complying with EN14399-3, and part 5 or part 6 washers, depending on the usage.
(M30-M80) Hex Head Bolt Dimension and Size
Hex Head Bolt Size of GB /T 5782
| Screw Thread d |
M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | (M52) | M56 | (M60) | M64 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | Pitch | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 |
| b | L≤125 | 66 | – | – | – | – | – | – | – | – | – | – |
| 125＜L≤200 | 72 | 78 | 84 | 90 | 96 | 102 | 108 | 116 | – | – | – | |
| L＞200 | 85 | 91 | 97 | 103 | 109 | 115 | 121 | 129 | 137 | 145 | 153 | |
| c | max | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| min | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |
| da | max | 33.4 | 36.4 | 39.4 | 42.4 | 45.6 | 48.6 | 52.6 | 56.6 | 63 | 67 | 71 |
| ds | max=nominal size | 30 | 33 | 36 | 39 | 42 | 45 | 48 | 52 | 56 | 60 | 64 |
| Grade A (min) | – | – | – | – | – | – | – | – | – | – | – | |
| Grade B (min) | 29.48 | 32.38 | 35.38 | 38.38 | 41.38 | 44.38 | 47.38 | 51.26 | 55.26 | 59.26 | 63.26 | |
| dw | Grade A (min) | – | – | – | – | – | – | – | – | – | – | – |
| Grade B (min) | 42.75 | 46.55 | 51.11 | 55.86 | 59.95 | 64.7 | 69.45 | 74.2 | 78.66 | 83.41 | 88.16 | |
| e | Grade A (min) | – | – | – | – | – | – | – | – | – | – | – |
| Grade B (min) | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 | |
| L1 | MAX | 6 | 6 | 6 | 6 | 8 | 8 | 10 | 10 | 12 | 12 | 13 |
| k | Nominal Size | 18.7 | 21 | 22.5 | 25 | 26 | 28 | 30 | 33 | 35 | 38 | 40 |
| Grade A(max) | – | – | – | – | – | – | – | – | – | – | – | |
| Grade A(min) | – | – | – | – | – | – | – | – | – | – | – | |
| Grade B(max) | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | 28.42 | 30.42 | 33.5 | 35.5 | 38.5 | 40.5 | |
| Grade B(min) | 18.28 | 20.58 | 22.08 | 24.58 | 25.58 | 27.58 | 29.58 | 32.5 | 34.5 | 37.5 | 39.5 | |
| k1 | Grade A (min) | – | – | – | – | – | – | – | – | – | – | – |
| Grade B (min) | 12.8 | 14.41 | 15.46 | 17.21 | 17.91 | 19.31 | 20.71 | 22.75 | 24.15 | 26.25 | 27.65 | |
| r | min | 1 | 1 | 1 | 1 | 1.2 | 1.2 | 1.6 | 1.6 | 2 | 2 | 2 |
| s | max=nominal size | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 |
| Grade A (min) | – | – | – | – | – | – | – | – | – | – | – | |
| Grade B (min) | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 | |
Hex Head Bolt Size of GB/T 5783
| Screw Thread d |
M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | (M52) | M56 | (M60) | M64 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | Pitch | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 |
| a | max | 10.5 | 10.5 | 12 | 12 | 13.5 | 13.5 | 15 | 15 | 16.5 | 16.5 | 18 |
| min | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 | |
| c | max | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| min | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |
| da | max | 33.4 | 36.4 | 39.4 | 42.4 | 45.6 | 48.6 | 52.6 | 56.6 | 63 | 67 | 71 |
| dw | Grade A(min) | – | – | – | – | – | – | – | – | – | – | – |
| Grade B(min) | 42.75 | 46.55 | 51.11 | 55.86 | 59.95 | 64.7 | 69.45 | 74.2 | 78.66 | 83.41 | 88.16 | |
| e | Grade A(min) | – | – | – | – | – | – | – | – | – | – | – |
| Grade B(min) | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 | |
| k | Nominal Size | 18.7 | 21 | 22.5 | 25 | 26 | 28 | 30 | 33 | 35 | 38 | 40 |
| Grade A(max) | – | – | – | – | – | – | – | – | – | – | – | |
| Grade A(min) | – | – | – | – | – | – | – | – | – | – | – | |
| Grade B(max) | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | 28.42 | 30.42 | 33.5 | 35.5 | 38.5 | 40.5 | |
| Grade B(min) | 18.28 | 20.58 | 22.08 | 24.58 | 25.58 | 27.58 | 29.58 | 32.5 | 34.5 | 37.5 | 39.5 | |
| k1 | Grade A (min) | – | – | – | – | – | – | – | – | – | – | – |
| Grade B (min) | 12.8 | 14.41 | 15.46 | 17.21 | 17.91 | 19.31 | 20.71 | 22.75 | 24.15 | 26.25 | 27.65 | |
| r | min | 1 | 1 | 1 | 1 | 1.2 | 1.2 | 1.6 | 1.6 | 2 | 2 | 2 |
| s | max=nominal size | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 |
| Grade A (min) | – | – | – | – | – | – | – | – | – | – | – | |
| Grade B (min) | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 | |
Difference Between Hex Head Bolt and Hex Head Screw
For hex head bolt and hex head screw are very similar small parts, many people can get mixed on their classification, For a hex head bolt is an externally threaded fastener designed for insertion through the (threaded or unthreaded) holes in assembled parts, and can be tightened or released by adjusting a nut.
A hex head screw works with no nut, and shall be inserted into threaded holes in the assembled parts, the thread form shall match with the threaded hole, or it can forming its own thread with external force, and of being tightened or released by adjusting the bolt head.
