Jiaxing Haina Fastener Co.,Limited |
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Non-stardard Countersunk Head Screws Machine Screws Custom
Fasteners
1. Description:
Countersunk head screws, also known as flat machine screws, flat
head screw, its head, is a 90-degree cone, and common wood screws
similar tool to tighten the head slot, an in-line, cross the inner
hexagon .Hexagon Socket Countersunk Head Screws Machine Screws,
which are also called hex bolts, cup head screws, socket head cap screws, its not the same name, but represent the
meaning is the same. Commonly It is called hexagon socket head
screws, then there are 4.8, 8.8, 10.9, 12.9. Also called SHCS, also
called hex bolts. Its head is hex head, cylinder head also.Socket cap screws are a headed and externally threaded part designed for insertion through a close tolerance, internally tapped
hole and mated with a nut. Tension on the socket cap screw is
induced by rotation of the screw head. There is a hex socket in the
head that accepts a hex wrench to tighten the socket cap screw. The
point at the threaded end of the socket cap screw is machined flat
so it will fit into a drilled hole. Flat head socket cap screws are similar in design to a button head.
Material stainless steel and iron. There are stainless steel SUS202
stainless steel hexagon socket head cap screws, this is an ordinary
stainless steel material, there are stainless steel SUS304 hexagon
socket head cap screws with stainless steel SUS316 hexagon socket
head cap screws.
The most common stainless steel for general hardware use is
stainelss steel 304, which is also called stainless steel
18-8.Stainless steel 316 is A highly corrosion resistant grade
of stainless steel. Ideal in salt water and chlorine environments.
More expensive than 18-8.
Flat head countersunk socket cap screws DIN 7991 are not intended
for high strength application. The purpose of producing them with a
strength of the property class 10.9 is to increase the wear
resistance of the sockets. Insert the key into the socket and
apply the torque on the nut while holding the key. Should however,
the torque be applied on the screw itself it should be reduced
accordingly.
Standard | Non-stardard Countersunk Head Screws Machine Screws Custom Fasteners |
Material | Stainless Steel |
Size | M2-M36 |
Head Type | Socket |
Drive | Allen |
Class | SS304 SS316 |
Delivery Lead Time | 10-25 workdays |
Application | 1.Machinery 2.Stationary 3.Architecture 4.Hardware and Plastic Molds 5.Electric Appliance |
Sample | FREE SAMPLE |
Test Equipments | metallography microscope, electrolytic thickness gauge, tensile testing machine, salt spray device, magnetic detection machine(magnetic particle flaw detector), Caliper, Go&No-go gauge and etc. |
Material | Q235 |
Shank Diameter | M3.5/M3.9/M4.2/M4.8/M5.5/M6.3 |
Length | 13mm-100mm |
Head Type | countersunk, flat head. |
Finish | yellow/white/blue zinc plated |
Drive | phillip |
Packing | 1.Bulk paking 25 kg in a carton or bag; 2.1 kg in a box/bag,25 boxes/bags in a carton,then pallet; |
MOQ | one ton |
Payment Term | TT, L/C |
3. Application:
Flat Head Socket Cap Screws are used for flush mounting of
sections, usually where one part slides over another part or one
part is mounted on another. Flat head screws are limited by
configuration in their tensile strength capability. Stainless Steel
material.
4. Advantages:
1. We can provide One-stop shopping;
2. We can promise High quality;
3. We can give Competitive price;
4. We can offer Timely delivery;
5. We can show Technical support
6. We can provide material test certificate.