Precision Fastener M6*20 Din7984 Stainless Bolt With Low Head Hexagon Socket Head Screws
| Standard | ISO, JIS, GB, ANSI, BSW, DIN or non standard as customize |
| Material | 1.Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS420
2.Steel:C45(K1045), C46(K1046),C20 3.Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40) 4.Bronze: C51000, C52100, C54400, etc 5.Iron: 1213, 12L14,1215 6.Aluminum/ Aluminum Alloy: Al6061, Al6063 etc 7.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045, C435#, 40CrMo, 42CrMo 8.Alloy steel: SCM435,10B21 9.Titanium and Titanium Alloy: TAD, TA1-TA8, TB2, TC1-TC10 |
| Grade | 4.8,6.8,8.8,12.9,etc |
| Size | M1.4-M30 or made to print as customer's specification |
| Specifications | Various shape size according to client’s requirement |
| Thread | unc,unf,metric thread |
| Finish | Plain, Zinc Plated(Clear/Blue/Yellow/Black), black oxide, H.D.G, DAC,GOEMET, as custom need |
| Payment term | T/T 30 % deposit, 70% balance payment before shipment |
| Package | solid cardboard box pack or kit packed |
Internal hexagonal screws are commonly used in machinery, with the main advantages of being easy to tighten, disassemble, and less prone to slipping. Internal hexagonal wrenches are usually bent at a 90 ° angle, with one end long and the other short. When using the shorter end to tighten screws, holding the longer end can save a lot of force and better tighten the screws. The longer end has a round head (a hexagonal cylinder similar to a sphere) and a flat head, which can be easily inserted into the screw hole for easy disassembly. The manufacturing cost of the external hexagonal wrench is much lower than that of the internal hexagonal wrench. Its advantage is that the screw head (the position where the wrench is subjected to force) is thinner than the internal hexagonal wrench, and some places cannot be replaced by the internal hexagonal wrench. Machines with low cost, low power intensity, and low precision requirements use much fewer internal hexagonal screws than external hexagonal screws.
characteristic
Q235 wire is commonly used for hex screws, and of course, iron screw wire is also used. The wire used for these screws can determine some of the characteristics of hex screws.
The first one is that the hardness of stainless steel screws is relatively high, but if it is made of iron, the hardness is significantly worse, which is related to the wire of the iron itself. The texture of iron itself belongs to a relatively soft category, which cannot be compared to stainless steel wire. However, in order to achieve the required hardness for iron screws, heat treatment is generally used to harden them. During the heat treatment process, it is necessary to ensure that the screws are uniformly heated. Otherwise, not only will the hardness of the screws not meet the requirements, but it will also make them easy to bend, greatly increasing the production cost of hexagonal screws. After heat treatment, it is possible to increase the hardness of iron hexagonal screws, but due to wire issues, it is still not possible to compare the quality with stainless steel wire.
One thing to note for hex screws is to try not to let the screw head slip during use, otherwise it will be difficult to remove the screw in the future.
How to use bolts
1. After the installation of the internal hexagonal bolt, the tightening effect is very good due to the tightening of the thread, and there will be no loosening of the bolt, which can effectively avoid the loosening problem caused by long-term vibration and vibration of mechanical equipment. At the same time, hexagonal bolts can also be used with locking washers, locking agents, and other auxiliary measures to prevent loosening, resulting in higher reliability.
2. Easy to install
During the installation process of the internal hexagonal bolt, only the internal hexagonal wrench is needed for operation, which is simple and convenient, reducing manual operation time and cost. Compared with other bolts, hexagonal bolts are less prone to damage during installation, can be reused, and have a longer service life.
3. Wide applicability
The biggest advantage of hexagonal bolts is that they have a wide range of applications. It can be applied to various industries and fields, including the automotive industry, aerospace, mechanical manufacturing, construction engineering, etc. During the manufacturing, installation, and maintenance processes, hexagonal bolts have also demonstrated excellent performance and reliability.
In summary, as one of the commonly used fasteners in mechanical equipment, internal hexagonal bolts have the advantages of high strength, good anti loosening effect, easy installation, and wide applicability, making them a very reliable fastener.
