Excavator /bulldozer Segment Bolt, Plow Bolts & Nuts and Track Bolt

Fishtail bolt grade meaning:
According to relevant standards, the performance grades of fishtail bolts are divided into more than 10 grades, such as 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, and 12.9. The bolts of grade 8.8 and above are made of low carbon alloy steel or medium carbon steel. After heat treatment (quenching and tempering), they are generally called high-strength bolts, and the rest are generally called ordinary bolts. The bolt performance grade label consists of two numbers, which represent the nominal tensile strength value and yield ratio of the bolt material.

Fishtail bolt inspection:
Bolt inspection is divided into manual and machine. Manual is the most primitive and most commonly used consistent detection method. In order to minimize the outflow of defective products, the general production company personnel inspect the packaged or shipped products by visual inspection to eliminate defective products (defects include tooth injuries, mixing, rust, etc.). The other method is automatic machine inspection, mainly magnetic particle inspection. Magnetic particle inspection uses the interaction between the leakage magnetic field at the bolt defect and the magnetic powder to deal with the difference between the magnetic permeability of the bolts (such as cracks, slag inclusions, mixing, etc.) and the magnetic permeability of steel. These materials are discontinuous after magnetization. The magnetic field will be turbulent, forming part of the magnetic flux leakage, and the leakage magnetic field will be generated on the surface of the workpiece, thereby attracting the accumulation of magnetic powder at the defect where the magnetic powder is formed-the magnetic mark. Under proper lighting conditions, the defect position and shape will appear. The accumulation of these magnetic powders is observed and explained, and the purpose of rejecting defective products has been achieved.

FAQ
Q1: Are you a trader or a manufacture?
A1: We are an industry and trade integration business,
Q2: How can I be sure the product is right for my machine?
A2: Please provide the part number of our product or the serial number of the machine. And we can customize for you according to drawings and sizes.
Q3: What kind terms of payment can be accepted?
A3: T/T, L/C, D/A, D/P is accepted, T/T30% as deposit, and 70% before delivery.
Q4: Which shipment you can supply?
A4: By sea, by air or by express(DHL, Fedex, TNT, UPS, EMS).
Q5: What is your delivery time please?
A5: If the goods are in stock, we can arrange delivery and transportation for you in 2-5 days. If it needs to be produced, it will take about 10-20 days.
Q6: How is the quality of the product?
A6: We have a perfect quality system to produce perfect products. And we can provide customers with products suitable for customers according to their requirements.

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