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Product Details:
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| Available Material: | High Strength Steel, Stainless Steel, Carbon Steel | International Standard: | DIN, ANSI, GB, JIS, Bsw, GOST |
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| Used: | Railway Fastening Syestem | Head Type: | Lag Head Hex Nuts |
| Class/Grade: | 3.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 | Surface Finishing: | Hot DIP Galvanizing, Blu-White Zinc Plated |
| Finish: | Black ,plain, Yellow Etc | Specification: | M25 |
| Name: | High Quality 8.8 Grade Oxides Zinc Finish Black OEM M24 Rail Fish Fishtailer Customized Lag Head Bolt For Joint Bar | ||
| High Light: | M24 Railway Track Fasteners,OEM Railway Track Fasteners,8.8Grade Black Square Head Lag Screws |
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High Quality 8.8 Grade Oxides Zinc Finish Black OEM M24 Rail Fish Fishtailer Customized Lag Head Bolt for Joint Bar
Introduction of fishtail bolts
Fishtail bolts (fishtail wires) are mostly used in the connection of track joint splints (fishtail plates) for fixing, and sometimes hexagonal bolts can be used instead.
Bolts, mechanical parts, cylindrical threaded fasteners with nuts. Bolt: A type of fastener consisting of a head and a screw (a cylinder with an external thread), which needs to be matched with a nut to fasten and connect two parts with through holes. This form of connection is called a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.
Usage of fishtail bolts
Fishtail bolts are mainly used in track laying in the metallurgical industry, coking industry, and iron and steel industry, and the rail and rail joints are connected and fastened.
Type and material of fishtail bolts
Models are Φ14×70, Φ16×75, Φ18×90, Φ20×90, Φ22×135, Φ24×135, Φ24×145, Φ24×170, etc. Generally, it is hot-pressed by friction press, the buckle length is 50mm, and there are also cold Upsetting is mostly used in the connection of rail joints.
Materials are: Q235 and 45# steel and insulated fishtail bolts, etc.
High Quality 8.8 Grade Oxides Zinc Finish Black OEM M24 Rail Fish Fishtailer Customized Lag Head Bolt for Joint Bar
A hex cap screw is a cap screw with a hexagonal head, designed to be driven by a wrench (spanner).
An ASME B18.2.1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head height and the shank length. The nature of the tolerance difference allows an ASME B18.2.1 hex capscrew to always fit where a hex bolt is installed but a hex bolt could be slightly too large to be used where a hex cap screw is designed in.
| Standard: |
ASME B 18.10; DIN 5903 |
| Diameter: | 1/4"-5",M6-M125 |
| Length: | ≤9m or 30feet |
| Material: | Carbon Steel, Alloy Steel, Stainless Steel, Brass |
| Grade: | Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 ASTM A193 / ASTM A193M Grade B5 (AISI 501) ASTM A193 / ASTM A193M Grade B6, B6X (AISI 410) ASTM A193 / ASTM A193M Grade B7, B7M (AISI 4140, AISI 4142, AISI 4145, AISI 4140H, AISI 4142H, AISI 4145H ASTM A193 / ASTM A193M Grade L7,L7M,L43 ASTM A193 / ASTM A193M Grade B16 ASTM A193 /A193M, ASTM A320 /A320M Grade B8, B8A (AISI 304, AISI 304L, AISI 304H) ASTM A193 /A193M, ASTM A320 /A320M Grade B8C, B8CA (AISI 347, AISI 347H) ASTM A193 /A193M, ASTM A320 /A320M Grade B8M, B8MA, B8M2, B8M3 (AISI 316, AISI 316L, AISI 316H) ASTM A193 /A193M, ASTM A320 /A320M Grade B8P, B8PA (AISI 305) ASTM A193 /A193M, ASTM A320 /A320M Grade B8N, B8NA (AISI 304N) ASTM A193 /A193M, ASTM A320 /A320M Grade B8MN, B8MNA (AISI 316N) ASTM A193 /A193M, ASTM A320 /A320M Grade B8MLCuN, B8MLCuNA ASTM A193 /A193M, ASTM A320 /A320M Grade B8T, B8TA (AISI 321, AISI 321H) ASTM A193 /A193M, ASTM A320 /A320M Grade B8A, B8RA ASTM A193 /A193M, ASTM A320 /A320M Grade B8S, B8SA ASTM A193 /A193M, ASTM A320 /A320M Grade B8LN, B8LNA (AISI 304N, AISI 304LN) ASTM A193 /A193M, ASTM A320 /A320M Grade B8MLN, B8MLNA (AISI 316N, AISI 316LN) |
| Thread: | M,UNC,UNF,UNS,UNR |
| Finish: | Plain, Zinc Plated(Clear/Blue/Yellow/Black), H.D.G, PTFE,Zinc Nickel,Geomet,Dacromet,Zinteck,Magni |
| Packing: | Bulk in cartons (25kg Max.)+wood Pallet, woven bag then pallet, according to customer special demand |
| Application: | Oil&Gas; Structural Steel; Metal Building; Tower&Pole; Wind Energy; Mechanical Machine; Home Decorating |
| Equipment: | Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector, Projector, Magnetic flaw detecter, Spectrometer |
| Supply Ability: | 1000 tons per month |
| MOQ: | According to customer demand |
| Trade Term: | FOB/CIF/CFR/CNF/EXW/DDU/DDP |
| Payment: | T/T, L/C, D/A , D/P ,West Union,Paypal.etc |
| Market: | Europe/South&north America/East&South East Asia/Middle East/Australia and etc. |
| Professional: | More than 15 years of experience in the fasteners industry Our Main market is North&South America and proficient in DIN/ASME/ASTM/IFI standard. |
| Our advantage: | One-stop shopping; High quality; Competitive price; Timely delivery; Technical support; Supply Material and Test Reports; Samples for free |
| Notice: | Please let's know the Size, quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us |
High Quality 8.8 Grade Oxides Zinc Finish Black OEM M24 Rail Fish Fishtailer Customized Lag Head Bolt for Joint Bar
Fish bolt shapes Classification and Diffenrent Used Situation:
Generally, the countersunk head is used in places where the surface is required to be smooth without protrusions, because the countersunk head can be screwed into the part. Round heads can also be screwed into parts. The tightening force of the square head can be larger, but the size is large. In addition, in order to meet the needs of locking after installation, there are holes in the head and holes in the rod. These holes can prevent the bolts from loosening when they are vibrated. Some bolts without threads should be made thin, called thin-waisted bolts. This kind of bolt is beneficial to the connection under variable force. There are special high-strength bolts on the steel structure, the head will be larger, and the size will also change. In addition, there are special uses: for T-slot bolts, which are most used on machine tool fixtures, with special shapes, and both sides of the head should be cut off. Anchor bolts, used for machine and ground connection and fixing, come in many shapes. U-bolts, as previously described. etc. There are also special studs for welding. One end has a thread and the other end is not. It can be welded to the part, and the other side can directly screw the nut. The English name of the riding bolt is U-bolt. It is a non-standard part. The shape is U-shaped, so it is also called a U-bolt. There are threads on both ends that can be combined with nuts. It is mainly used to fix tubular objects such as water pipes or sheets such as automobile plates. Springs are called riding bolts because of the way they fix things like a person rides a horse.
Fishtail bolt inspection:
Bolt inspection is divided into manual and machine. Manual is the most primitive and the most commonly used consistent detection method. In order to minimize the outflow of defective products, general production enterprise personnel inspect the packaged or shipped products by visual means to exclude defective products (defective products include tooth damage, mixed materials, rust, etc.).
Another way is automatic machine detection, mainly magnetic particle inspection. Magnetic particle inspection is to use the interaction between the leakage magnetic field at the defect of the bolt and the magnetic powder, aiming at the difference between the magnetic permeability of the bolts (such as cracks, slag inclusions, mixed materials, etc.) and the magnetic permeability of steel, these materials are discontinuous after magnetization.
The magnetic field at the place will be turbulent, and a leakage magnetic field will be generated on the surface of the workpiece where part of the magnetic flux leakage is formed, thereby attracting the magnetic powder to form the magnetic powder accumulation at the defect - magnetic traces. The accumulation of these magnetic powders is observed and explained, and the purpose of rejecting defective products has been achieved.
High Quality 8.8 Grade Oxides Zinc Finish Black OEM M24 Rail Fish Fishtailer Customized Lag Head Bolt for Joint Bar
What should be paid attention to when attaching fishtail bolts and fishplates?
1. The contact parts between the fish plate and the rail and the bolts should be oiled.
2. When threading the fishtail bolt, the nut must be staggered inside and outside.
3. The procedure of tightening the bolts, such as using a four-hole fish plate, tighten the middle two first, then the two sides, and after tightening the two sides, tighten the middle two again.
4. When screwing the fishtail bolts, one person should use a 55cm screw wrench. Do not use a too long screw wrench or two people.
5. When the fishtail bolts cannot be worn, use a hammer to hit both ends of the fishtail plate, align the eyes, and do not drive the fishtail bolts with a hammer.
Railway parts products we can provide:
1, Rail Spike Series: Rail Screw Spike, rail Dog Spike, rail Elastic Spike etc.
2, Track Bolt series: Track Bolt, Segment Bolt, Metro Bolt, Tunnel Bolt, Hex Bolt, Square Bolt, Turnout Bolt, Fishtail Bolt, T bolt etc
3, Rail Clip series: Nabla rail Clip, Elastic rail Clip, SKL rail Tension Clamp, O rail Clip, Gauge Lock Clip etc
4, Steel Rails series: Railway rails, Crane Rails, Mining Rails, Over the head Rails, etc
5, Steel rail wheels series: Train Wheels, Crane Wheels, Hi-rail vehicle wheels, etc
6, Other materials and accessories: Rail Gauge Insulator, rail rubber Pad, rail Fish plate, Nut, rail Plastic Dowel, rail Tie plate, Spring Washer, Flat Washer, Cast Iron Insert, Anti Creeper, rail Gauge Rod etc.
We also make rail fastenings for crane rail and elevator guide rail, along with other related products. We manufacture according to GB/TB (Chinese national standards and railway standards), AREA, UIC, BS, DIN, ASTM, and AS standards.
Our products are mainly made through hot forging.
The threads of rail screw spikes are made by hot rolling with special threading machines.
We produce metric threads, BS, BSW, TR thread, or round threads.
Our high strength bolts come in different specifications of Class 4.8, 4.6, 5.6, 5.8, 6.8, 8.8, 10.9, and 12.9. A variety of non-standard fastening is also available. We can customize our products using customer drawings or samples as well.
Why choose us:
1. The company is in a leading position in the industry and has obtained SGS-ISO9001: 2008 quality system certification and CRCC certification. Quality is guaranteed.
2. We have 8 professional sales staff and more than 60 professional engineers. Can provide professional and fast suggestions and quotations for your railway customized products
3. Ma′anshan is a port city. We can provide you with faster shipping services
4.20 years of production and sales experience. Deal with all kinds of after-sales problems for you in time.
Contact Us :
Any requirments about our products, pls feel free to contact us as below:
Contact Person: maggie
Tel: +8619945038330
