12.9 Steel Hex Head Screws
Description
Technical Parameters
Product description:
When it comes to heavy-duty machinery and equipment, Metric 12.9 Steel Hex Head Screws and Hex Bolts are the go-to fasteners for their exceptional tensile strength. In fact, they have the highest strength rating compared to Grade 9, making them highly reliable under extreme stress. These fasteners are commonly used in applications where durability and resilience are critical, ensuring that your machinery or equipment remains operational and safe.
These 12.9 Steel Hex Head Screws are ideal for heavy-duty stamping applications and earth-moving machinery such as bulldozers and excavators. They are incredibly strong, with a tensile strength of 170,000 psi, making them 10% stronger than other metric steel screws in our range. Conforming to ISO 4017 (formerly DIN 933), these screws are made to precise specifications and offer exceptional durability and reliability. The length is measured from the head down, ensuring that you get the exact size that you need for your specific application. Whether you're looking to repair heavy machinery or need to secure parts in place, these Steel Hex Head Screws are an excellent choice.
Steel screws with a yellow chromate coating and zinc plating exhibit excellent resistance to corrosion, making them ideal for use in damp or wet environments.
Features:
Externally threaded fasteners with heads, known as bolts, are commonly used to secure two objects, typically made of metal or wood, in a stable position relative to one another.
The thread on the screw is created by the screw itself, while the nut's internal thread is used to secure the bolt in place. This tightening of the bolted connection allows for variations in tension levels.
When it comes to disassembling and reassembling items, nuts can be an invaluable aid. Bolts are also a better option than screws for carrying heavier loads, but unlike screws, they lack a tapered shaft. Additionally, the tool required for tightening and loosening bolts is determined by the style of the head.
From furniture to machinery to bridges, bolts play a crucial role in holding everything together. They act as the essential connectors, ensuring stability and strength in various structures. Whether it's assembling pieces of furniture or constructing massive bridges, these versatile fasteners are the backbone of stability in countless applications.
Product Details：
Drive Style | Hex Head Bolts |
Screw Features | Hex |
System of Measurement | Metric |
Thread Direction | Right Hand |
Thread Fit | Class 6g |
Thread Spacing | Coarse |
Grade/Class | 12.9 |
Material | 35CrMo |
Standard | ISO4017,GB5783 |
Product Drawing:
Our company offers Hexagon Head Bolts with Full Thread in Product Grades A and B. These bolts are perfect for a wide variety of applications, including construction, automotive, and industrial uses. The hexagonal shape of the head provides a good grip for tightening and loosening, and the full thread ensures a secure fit. | ||||||||
ISO4017 & GB/T5783 | ||||||||
| ||||||||
d | P(mm) | k(mm) | s(mm) | |||||
A | B | min | max | |||||
min | max | min | max | A | B | |||
M1.6 | 0.35 | 0.975 | 1.225 | 0.9 | 1.3 | 3.02 | 2.9 | 3.2 |
M2 | 0.4 | 1.275 | 1.525 | 1.2 | 1.6 | 3.82 | 3.7 | 4 |
M2.5 | 0.45 | 1.575 | 1.825 | 1.5 | 1.9 | 4.82 | 4.7 | 5 |
M3 | 0.5 | 1.875 | 2.125 | 1.8 | 2.2 | 5.32 | 5.2 | 5.5 |
M3.5 | 0.6 | 2.275 | 2.525 | 2.2 | 2.6 | 5.82 | 5.7 | 6 |
M4 | 0.7 | 2.675 | 2.925 | 2.6 | 3 | 6.78 | 6.64 | 7 |
M5 | 0.8 | 3.35 | 3.65 | 3.26 | 3.74 | 7.78 | 7.64 | 8 |
M6 | 1 | 3.85 | 4.15 | 3.76 | 4.24 | 9.78 | 9.64 | 10 |
M8 | 1.25 | 5.15 | 5.45 | 5.06 | 5.54 | 12.73 | 12.57 | 13 |
M10 | 1.5 | 6.22 | 6.58 | 6.11 | 6.69 | 15.73 | 15.57 | 16 |
M12 | 1.75 | 7.32 | 7.68 | 7.21 | 7.79 | 17.73 | 17.57 | 18 |
M14 | 2 | 8.62 | 8.98 | 8.51 | 9.09 | 20.67 | 20.16 | 21 |
M16 | 2 | 9.82 | 10.18 | 9.71 | 10.29 | 23.67 | 23.16 | 24 |
M18 | 2.5 | 11.29 | 11.72 | 11.15 | 11.85 | 26.67 | 26.16 | 27 |
M20 | 2.5 | 12.29 | 12.72 | 12.15 | 12.85 | 29.67 | 29.16 | 30 |
M22 | 2.5 | 13.79 | 14.22 | 13.65 | 14.35 | 33.38 | 33 | 34 |
M24 | 3 | 14.79 | 15.22 | 14.65 | 15.35 | 35.38 | 35 | 36 |
M27 | 3 | / | / | 16.65 | 17.35 | / | 40 | 41 |
M30 | 3.5 | / | / | 18.28 | 19.12 | / | 45 | 46 |
M33 | 3.5 | / | / | 20.58 | 21.42 | / | 49 | 50 |
M36 | 4 | / | / | 22.08 | 22.92 | / | 53.8 | 55 |
M39 | 4 | / | / | 24.58 | 25.42 | / | 58.8 | 60 |
M42 | 4.5 | / | / | 25.58 | 26.42 | / | 63.1 | 65 |
M45 | 4.5 | / | / | 27.58 | 28.42 | / | 68.1 | 70 |
M48 | 5 | / | / | 29.58 | 30.42 | / | 73.1 | 75 |
M52 | 5 | / | / | 32.5 | 33.5 | / | 78.1 | 80 |
M56 | 5.5 | / | / | 34.5 | 35.5 | / | 82.8 | 85 |
M60 | 5.5 | / | / | 37.5 | 38.5 | / | 87.8 | 90 |
M64 | 6 | / | / | 39.5 | 40.5 | / | 92.8 | 95 |
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory and OEM are available.
Q: How long is your delivery time?
A: Generally it is 2-5 days if the goods are in stock,or it is 15-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: 30% T/T in advance ,balance before shipment or L/C.
If you have another question, please feel free to contact us.
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