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Hex Head Combination Stainless Steel Machine Screws With Washer / Spring Washer

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Hex Head Combination Stainless Steel Machine Screws With Washer / Spring Washer

Brand Name : HNF
Model Number : 1.5--8
Certification : ISO9001
Place of Origin : China
MOQ : 30,000pcs
Price : Negotiation
Payment Terms : L/C, T/T, Western Union, Paypal
Supply Ability : 2000000 pcs per month
Delivery Time : 10-15 days
Packaging Details : Small Box+Carton+Pallet, common export packing
Product : Hex Head Combination Screw with washer and spring washer Sem Screw Machine Screw
Type : Combination Screws
Size : M1.5--8
Class : 4.8 GRADE
Standard : As customized
Process : Cold Forging
Thread line : single line
Pitch : machine thread
Material : Carbon steel
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Hex Head Combination Screw with washer and spring washer Sem Screw Machine Screw


Combination screw is a screw with a spring washers with a flat pad by thread rolling, combination of fastening assembly together.And two combination screw is a screw with only one ball pad or only with a flat mat, would you still can only go with a tooth of the assembly.The combination screw countries expressed in GB9074 label.Common cross slot label is GB9074.8 first three combination screw small countries.This. 8 refers to small head.Is often said that the pan head screw head size.With letters for the PM.The representation method of combination of professional screw manufacturer, habitual is trine PM.The commonly used cross channel big label is GB9074.4 combination of pan head screws countries.The combination of professional call big pan head screws.R head, or head of B.That is the combination of screw head is bigger than small head combination screw head, thicker.And the commonly used one is outer hexagonal screws, this is the outer hexagonal screws.Often said recess outer hexagonal screws.The label for GB9074.13.

Combination of the material of screw is divided into iron and stainless steel.Iron is made of different screw rods of iron.General combination screw wire is made of 1010101 8, 10 B21 etc.10 b21 8.8 is used for combination of screw.Like Allen combination screw in 8.8 on the Richter scale is used 10 b21 wire to do it.Well after heat treatment.After heat treatment, removal of hydrogen after plating.This is to prevent the combination hexagonal screw ball pad fracture.The combination of stainless steel screws, combination screw in the market, generally refers to the combination of stainless steel SUS304 screw.201 combination screw generally do little.Very few combination screw manufacturer to produce 201 combination screw.Because the screw of the stainless steel 201 wire hardness is not very good control, it is easy to produce cracks.

Combination Screw is the biggest difference between screw and ordinary screw, screw combination is combined with other components, such as elastic washer, flat pad, tooth, etc., and screw is installed before rolling teeth commonly, after in the roll teeth washer is not to come out.


NameHex Head Combination Screw with washer and spring washer Sem Screw Machine Screw
Head TypeHexagonal Head
ThreadMachine thread
MaterialCarbon steel
Surface treatmentZinc plated
Packaging25kgs carton + pallet


Combination screw material usually for iron and stainless steel, the biggest advantage is with the corresponding gasket, can make the production line operation convenient, improve work efficiency, and therefore is widely used in electric, machinery, furniture, ships, etc.

Overall to combination screw is widely used in electric, electric power, machinery, electronics, home appliances, furniture, boat ship and so on.But it says the combination of different screw has different functions.Such as cross combination of pan head screw, generally used in small electronic products.Bigger cross outer hexagonal screws used in large electric products, such as frequency converter, some big inverter above is useful to many cross outer hexagonal screws.Playing on the inverter cabinet.Make relax fastening effect.In brought flowers 2 combination screw tooth, such as the use on the frequency converter, function is used to break the paint, make the second combination screw on the chassis panel all electricity.Still, such as the quartet line pressing combination screw, it itself is a pan head screw with a square pad 2 combination screw.Is commonly used in the terminal in the following.Function is used to wire, used for line pressing.


1, the screw is not easy to change under the action of external force, so can reduce the time of the assembly and maintenance time of late.
2, has a larger torque transmission capacity, to avoid the unnecessary waste and not damage caused by the damage on the surface of the screw head electric plating.
3, at the time of twist screws, reduce the labor personnel section load force and energy consumption.
4, elliptic geometry structure increases the safety coefficient of twist screws.
5, reducing the stop waiting for the assembly line, the possibility of rework and scrap.

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countersunk machine screws


flat head machine screw

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