ISO4014 Hex Bolt
ISO 4014 hex head bolts are metric partial-threaded hex head bolts. The shank part consists of a plain section and a threaded section. The threads usually adopt metric coarse thread. Compared with ISO 4017 full-threaded hex head bolts, ISO 4014 retains a longer plain section, thus being suitable for connection structures where the plain section needs to pass through the connected component and generate clamping force through the threads and the nut. ISO 4014 mainly stipulates the requirements for the head size, shank size, threads and length of the product. The product can be selected as carbon steel, alloy steel or stainless steel for different applications. ISO 4014 corresponds to the traditional DIN 931 in product form, but some specifications such as M10, M12, M14 and M22 hex head sizes are not completely consistent. Therefore, during production, the standards and specific specifications specified by the customer should be followed.
Specification:
ISO 4014 Hex Bolts are manufactured according to ISO 4014 specifications, which define the requirements for hexagon head bolts with partial thread. The specification covers important technical aspects including head dimensions, thread dimensions, unthreaded shank length, thread tolerance, material requirements, mechanical properties and surface finishes. The partial thread design is a key feature of ISO 4014 bolts, providing a combination of threaded engagement and smooth shank support for applications requiring strong and stable connections.
Depending on the application requirements, ISO 4014 Hexagon Head Bolts can be supplied in different materials and strength classes, including carbon steel, alloy steel and stainless steel options. Common strength grades include 8.8, 10.9 and 12.9 for steel bolts, as well as A2 and A4 stainless steel grades. The following table shows the main specifications of ISO 4014 Hex Bolts, including standard, material, thread type, strength class and surface treatment options.
| Product name | ISO4014 Hex Bolts |
|---|---|
| Head Type | Hexagonal Head |
| Thread Diameter | M1.6-M64 |
| Thread Tolerance | 6g |
| Length | Up to 800mm |
| Strength | 4.8/8.8/10.9/12.9/A2-70/A4-70 |
| Material | Carbon Steel/Alloy Steel/Stainless Steel/Copper |
| Surface treatment | Zinc Plated/Black Oxidation/Hot Dip Galvanized/Dacromet |
- RELATED BOLTS LISTS:
- HEX BOLTS
- DIN933 HEX BOLTS
- DIN 931 HEX BOLTS
- ISO 4017 HEX BOLTS
- ASME B 18.2.1 HEX BOLTS
- HEAVY HEX BOLTS
- DIN 6914 STRUCTURAL BOLTS
- AS 1252 STRUCTURAL BOLTS
- ASME B 18.2.1 HEAVY HEX BOLTS
- ASME B 18.2.6 HEAVY HEX BOLTS
- JIS 1186 BOLTS
- EN 14399-3 BOLTS
- EN 14399-4 BOLTS
- STUD BOLTS
- DIN976 STUD BOLTS
- DIN939 STUD BOLTS
- ASME B 18.31.2 STUD BOLTS
- IFI 136 STUD BOLTS
Dimension Chart of ISO4014:
The dimension chart of ISO 4014 Hex Bolts provides the key measurements required for proper selection and assembly, including nominal diameter, bolt length, thread length, unthreaded shank length, head width across flats and head height. As hexagon head bolts with partial thread, ISO 4014 bolts have a defined unthreaded section that plays an important role in load transfer and connection stability.
The following dimension chart shows the standard sizes of ISO 4014 Hex Bolts according to ISO requirements. Customers can select suitable bolt dimensions based on the thickness of connected components, required clamping length and application conditions to ensure a secure and reliable fastening connection.
| Mon | M1.6 | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | M52 | M56 | M60 | M64 |
| P | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 |
| da max | 2 | 2.6 | 3.1 | 3.6 | 4.1 | 4.7 | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 20.2 | 22.4 | 24.4 | 26.4 | 30.4 | 33.4 | 36.4 | 39.4 | 42.4 | 45.6 | 48.6 | 52.6 | 56.6 | 63 | 67 | 71 |
| ds max | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 | 52 | 56 | 60 | 64 |
| ds min | 1.46 | 1.86 | 2.36 | 2.86 | 3.32 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 17.73 | 19.67 | 21.67 | 23.67 | 26.48 | 29.48 | 32.38 | 35.38 | 38.38 | 41.38 | 44.38 | 47.38 | 51.26 | 55.26 | 59.26 | 63.26 |
| e min | 3.41 | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 14.38 | 17.77 | 20.03 | 23.36 | 26.75 | 30.14 | 33.53 | 37.72 | 39.98 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 |
| k max | 1.225 | 1.525 | 1.825 | 2.125 | 2.525 | 2.925 | 3.65 | 4.15 | 5.45 | 6.58 | 7.68 | 8.98 | 10.18 | 11.715 | 12.715 | 14.215 | 15.215 | 17.35 | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | 28.42 | 30.42 | 33.5 | 35.5 | 38.5 | 40.5 |
| k min | 0.975 | 1.275 | 1.575 | 1.875 | 2.275 | 2.675 | 3.35 | 3.85 | 5.15 | 6.22 | 7.32 | 8.62 | 9.82 | 11.285 | 12.285 | 13.785 | 14.785 | 16.65 | 18.28 | 20.58 | 22.08 | 24.58 | 25.58 | 27.58 | 29.58 | 32.5 | 34.5 | 37.5 | 39.5 |
| r min | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 | 1.2 | 1.2 | 1.6 | 1.6 | 2 | 2 | 2 |
| s max | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 13 | 16 | 18 | 21 | 24 | 27 | 30 | 34 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 |
| s min | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 12.73 | 15.73 | 17.73 | 20.67 | 23.67 | 26.67 | 29.67 | 33.38 | 35.38 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 |
Mechanical Proeprty of ISO4014 Bolts:
ISO 898-1 — Carbon and Alloy Steel
The mechanical properties of ISO 4014 hexhead bolts made of carbon steel and alloy steel can be referred to ISO 898-1. Depending on the material and strength requirements, we can provide performance grades such as 4.8, 5.8, 8.8, 10.9 and 12.9. Among them, 8.8 and 10.9 are commonly used for mechanical and structural connections that bear high preload and working loads.
ISO 3506-1 — Stainless Steel
The stainless steel ISO 4014 hex head bolts can be provided with different performance grades in accordance with ISO 3506-1, including A2-70, A2-80, A4-70 and A4-80. The A2 iso4014 bolts usually uses 304 or 304L austenitic stainless steel, while the A4 iso4014 bolts uses 316 or 316L stainless steel. The numbers 70 and 80 represent different strength levels. We produce according to the mechanical performance requirements specified by the customer, such as the tensile strength, specified plastic elongation strength, and elongation rate, to meet the usage needs of different mechanical connections and corrosive environments.
Application of ISO4014 Bolts:
ISO 4014 hex head bolts are widely used in the structural connections of mechanical equipment, construction machinery, steel structures, vehicles and industrial facilities. They are particularly suitable for assembly scenarios that require a certain length of the threaded section. Some of their threaded structures enable the threaded section to pass through the connected components and form a stable clamping force through the combination of the threads and the nut. Depending on different loads and usage environments, carbon steel, alloy steel or stainless steel can be selected, along with different mechanical performance grades and surface treatments, to meet the requirements for general mechanical connections, high-strength structural connections, and use in corrosive environments.