DIN603 Round Head Square Neck Bolt

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10000000 piece/ pieces per month pc/month

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Product Description

Product Name

DIN603 Round Head Square Neck Bolt

Material

Carbon Steel, Stainless Steel 201/ 304/ 316  or others.

Size

M4--M22

Standard Model

DIN ANSI JIS ASTM

Min Order

1000piece/ pieces


Packaging & Shipping

Packing

Inner Box + Carton Box + Pallet or Under Your Requirement

Supply capacity

10000000 piece/ pieces per month

Delivery time

5~20  days after deposit

Export market

Asia, America, Europe, Africa, markets.


Our Services

1. Reliable Supplier

2. High Quality

3. Standard Producing Technology

4. Competitive Factory Price

5. Fast Delivery


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Q:What screw can get into the iron?
You use high-strength drill bit, drill hole, after drilling with a tap, cone wire, tighten the screw, how much wire according to your choice.
Q:What is the fastener and others?
Fasteners are collectively referred to as a class of mechanical parts used to fasten two or more parts (or components) into a unit. Fasteners include bolts, studs, screws, nuts, washers, Pin, etc.,
Q:How do I install the screws correctly?
A small screw, but has a great impact, how to use a small screw, so that the role of the maximum screw, these are the things we need to learn, we should know that the screws are small, but less screws It is absolutely impossible. We have a good understanding of the correct use of the screw on the method. If we have a screw on our hands, then we can go to understand the characteristics of the screw, you can understand the above raw materials, you can in the specifications, hardness above to understand, we only have a comprehensive understanding of the characteristics of this screw, we To be able to correctly use this screw, otherwise, we will never play a small screw the biggest role.
Q:No cross screwdriver, how can the screwdriver screwdriver?
Is the big nail? This is a lot of ways to find alternatives: glasses, calculators and other flat on the plane can be used to decorate the tip of the blade, be careful not to cut the hand do not cut the mirror material.
Q:Why do you have to add a spring washer when it comes to the role of ah ah ah
Reinforce and prevent looseningImagine the screw into the threaded hole, if the equipment for a long period of vibration, screw and screw combination may be loose, or even fall off
Q:What tools are used to remove the screws, the two lines are grooves, the middle of a paragraph is convex
There is a multi-component tool that specializes in handling such screws.
Q:What is a self-tapping nail? Is it used? What are the characteristics of the shape? What is the difference with ordinary screws?
Self-tapping screw head shape with round head, flat head, semi-countersunk head and countersunk head and so on. Materials generally carburized steel, heat treatment after the surface hardness of not less than 45HRC.
Q:Why do some nuts and washers, and some nuts without washers
General screw diameter and the diameter of the fastening parts of the hole is not large, the nut and parts of the contact area is relatively large, you can not add a gasket
Q:what are the Fasteners Selection Specification
Specification is: can not affect the performance of the product being used, and fully guarantee the effect of fastening.
Q:How did the scrHow did the screw become round?ew become round?
(1) in the screwdriver head pad things such as double-sided adhesive, non-woven fabrics, etc. If there is no condition, then the paper can be, so you can increase the friction. (2) with a small amount of 502 glue into the screw hole, and then screw into the screw, and so the glue after the solid tip and then use the tip of the screw to pull out the screw (only the screwdriver is not afraid of causing screw teeth). (3) fruit screw cap exposed, you can use the tip of the clamp clamp screw cap after the screw. (4) the general mobile phone screws are metal, the case is plastic, not screw down when the time. You can use the tip of the screw into the screw cap, the metal screws to screw the plastic around the plastic melting, with the tip of the clamp clamp, gently pull out! You can also force down the screws about 1 mm (be careful not to engage in the chassis), you can solve the problem of loose screws. (5) so little the screw is not easy to get, my father had to repair the original bike screw method, with a small electric drill in the middle of the screw to play a not deep hole, and then find an anti-silk tap into the (must Anti-wire tap, it is difficult to find, to go to a large measuring blade cutting shop), you can unscrew the.

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