High Strength Stainless Steel Bolts , Hex Head Cap Screw For Building Industry Machinery

High Strength Black Color Hex Head Screw For Building Industry Machinery

Products Description:

This item is Fine Thread Grade 8.8 Carbon Steel Hex Bolt M12 Din 960 Black Oxide,the material is carbon steel,the grade is 4.8,the thread is fine thread,the size is M12,the standards is DIN960,the surface treatment is black oxide.
The pruduct is bolt,or screw, is a type of fastener, typically made of metal, and characterized by a helical ridge,known as a male thread (external thread) or just thread, wrapped around a cylinder. Some screwthreads are designed to mate with a complementary thread, known as a female thread (internal thread),often in the form of a nut or an object that has the internal thread formed into it. Other screw threads are designed to cut a helical groove in a softer material as the screw is inserted. The most common uses of screws are to hold objects together and to position objects.A screw will almost always have a head on one end which contains a specially formed shape that allows it to be turned, or driven, with a tool.
Common tools for driving screws include screwdrivers and wrenches. The head is usually larger than the body of the screw, which keeps the screw from being driven deeper than the length of the screw and to provide a bearing surface. There are exceptions; for instance, carriage bolts have a domed head that is not designed to be driven; set screws often have a head smaller than the outer diameter of the screw; J-bolts have a J-shaped head which is not designed to be driven, but rather is usually sunk into concrete allowing it to be used as an anchor bolt. The cylindrical portion of the screw from the underside of the head to the tip is known as the shank; it may be fully threaded or partially threaded.

Packing:

Packing Details :Construction fastener bags+cartons+pallets,or according to customer ' s requirement,
1. We have several sizes of packing dimensions, can be 25kg per carton;
2. For large orders, we can design specific sizes of boxes and cartons.
3. Normal Packing: 1000pcs/500pcs/250pcs per plastic bag,bags into cartons,then on pallet.
4. Can provide special packing as middle east clients request;

Specification