Hexagon Head Grade 5.8 bolts Staninless Steel Bolts M8 Sliver Color Or Custom
Bolt: A type of fastener consisting of a head and a screw (cylindrical body with external thread), fitted with a nut, for fastening two parts with through holes.
Because the bolt is also a kind of railway accessories, railway accessories is a component of the railway line, the track referred to here includes rail, sleeper, connecting parts, track bed, anti-climbing equipment, rail support and turnout, etc..
As an integral engineering structure, the track lays on the roadbed, plays a guiding role in the train operation, and directly bears the huge pressure of the locomotive and vehicle and its load.Under the dynamic action of the train operation, its various components must have sufficient strength and stability to ensure the train in accordance with the specified maximum speed, safe, smooth and uninterrupted operation.
Some bolts do not have threaded rod to do fine, called fine waist bolt.This kind of bolt facilitates coupling under variable forces.
There are special high strength bolts on the steel structure. The head will be larger and the size will also change.
In addition, it has special use: T-shaped slot bolt, most used on the jig, special shape, both sides of the head should be cut off.The anchor bolts, used for attaching machines to the ground, come in many shapes.U-bolt, as described above.And so on.
There are special studs for welding, one end has a thread one end, can be welded on the parts, the other side directly screw the nut.
Hot upsetting process:
Hot heading: refers to the raw materials after heating for stamping, the specific use of no special requirements, under normal circumstances are required to use cold heading, because of such a surface finish, material composition will be more compact, there is a larger workpiece often used hot heading processing.
PLASTIC BAG+CARTON+WOOD FIX PALLET
EACH BAG AROUND 3-4KG AND 25KG PER CARTON AND LESS THAN 900KG PER PALLET
1) Sample order, 20/25kg per carton with our logo or neutral package;
2) For Large orders, we can custom packaging;
3) Normal Packing: 1000/500/250pcs per small box. then into cartons and pallet;
4) According to customers' requirements.
Q: Are you trading company or manufacturer ?
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 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: Payment<=10000USD, 100% in advance. Payment>=10000USD, 50% T/T in advance ,balance before shippment.