M16 Alloy Stainless Steel Head Screws Flat Head Shoulder Screw Grade 12.9

Alloy Stainless Steel Head Screws Of Grade12.9 With Shoulder
 
Quick Details
Name: Alloy Stainless Steel Head Screws Of Grade12.9 With Shoulder
Material: Alloy, 304 Stainless Steel, 316 Stainless Steel, 201 Stainless Steel
Screw Size: M3, M4, M5, M6, M8    Length : 6 - 60mm
Service: OEM, ODM Trade term: FOB/EXW/CIF
Shipping Way: Air, Boat, Train, FEDEX, UPS, DHL
Packaging: Inner Small box + carton box + Pallet
 
Products Description
 

Alloy Stainless Steel Head Screws Of Grade12.9 With Shoulder, also known as flat machine screws, flat head screws, their head is a 90-degree cone, similar to common wood screws, the head has a tool tightening groove, a flat, cross, hexagon, etc. .

Screws play the role of connecting two or more objects. They are indispensable in daily life or industrial manufacturing. There are countersunk head bolts (slotted) and countersunk head bolts (with tenon).

Cylindrical head. Half-sunk head. Sink head. Spherical cylindrical head. Pan head. Half round head. Hex Head.

On the surface of the mounting hole on the connecting piece of Alloy Stainless Steel Head Screws Of Grade12.9 With Shoulder, a 90-degree cone-shaped round socket is processed, and the head of the flat machine screw is in the round socket and is flush with the surface of the connecting piece. Flat machine screws are also used in some occasions with half-round head flat machine screws. This type of screw is more beautiful and is used in places where a little protrusion can be allowed on the surface.

According to the performance and function of various types, Head Screws is divided into countersunk hexagon socket bolts, countersunk slotted bolts and so on.

Alloy Stainless Steel Head Screws Of Grade12.9 With Shoulder are mostly used after installation, the surface of the parts can not be raised, and the fastened parts have two thicknesses, the so-called thick, which means that the thickness of the fastened part is greater than the thickness of the head of the countersunk screw Thickness. After the screw is tightened, there is still a part of the screw thread that does not enter the threaded hole. In this case, the countersunk screw can definitely be tightened. There is usually another case, that is, the thickness of the fastened parts is less than the height of the head of the countersunk head screw, which is common in sheet metal parts in mechanical equipment, such as the connection of the hinge of the chassis and the door and the box; the sheet metal of the equipment The connection between the cover and the equipment, etc. Due to the small thickness of the part, the screw through hole of the fastened sheet metal part has become a conical hole completely. In this case, when the countersunk screw is tightened, the screw head is not a conical surface to compress the sheet metal part. , But the bottom of the screw head and the top of the threaded hole are squeezed. Although the screw feels that the screw is tightened, the sheet metal part is stuck instead of being pressed. In this case, although the screw feels that the screw is tightened, the sheet metal The gold piece is indeed not tightened. This is a very common situation.

 
               Alloy Stainless Steel Head Screws Of Grade12.9 With Shoulder Drawing and Parameter

 
Why Choose us?
1. Our company have more than 15 years experience in the Stainless Steel Screws field.
2. We have Professional experienced engineers, sales and overseas engineers.
3. We have automatically generate machines produce the screws, Bolts, Nuts, Washers and so on .
4. Our high productivity can make sure your quickly delivery time.
5. We have professional quality Checking department, make sure good quality