M4X25 White Zinc Plated Phillips Pan Head Self Tapping Screw

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
50 pc
Supply Capability:
50000 pc/month

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Product Description:

1,Specification

Standard

GB, DIN, ISO, ANSI, ASME, IFI, JIS,BSW,AS,Q,HJ,

Size

According to your request 

Materials

1,Stainless Steel: SUS201,SUS302,SUS303, SUS304, SUS316, SUS410, SUS430

2,CarbonSteel:C1006,C1008,C1010,C1018,C1022,C10B21,C10B33,C1035,C1045,

C435#,40CrMo,42CrMo

3,Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40)

4,Bronze: C51000, C52100, C54400, etc

5,Aluminum: Al6061, Al6063 etc

Aluminum Alloy: Al6061, Al6063 etc

6,Titanium and Titanium Alloy: TAD,TA1-TA8,TB2,TC1-TC10

7,Alloy steel: SCM435,C10B21,C10B33

8,Iron:1213,12L14,1215,ect

Surface treatment

  • Bronze,Bronzy,red bronze, Chrome plate,color painted ,Nylok,ruspert,Magni,,Absorber Oil,Hardened,phosphate(blackGray),Black,Zinc Plated,(green,blackwhite blue , Yellow ,ROHS), Rainbow ,Plain, Nickel(black,white),Electrophoresis, Dacromet,

2:Business terms

Report

SGS,ROHS,

Trade terms

EXW, FOB,CIF,CFR

Packing

Packing: Poly bag, Small box, Plastic box, Carton, Pallet 25kgs/ carton, 36 cartons/ pallet. Carton dimension: 39cm*28cm*13.5cmpallet dimension: 100cm*100cm*80according to the customer’s requirement

Payment terms

TT 30% deposit in advance, 70% Balance Before shipment,

100% LC at sight,Western Union. 

 

Sample terms

Sample free offered if available in stock,otherwise there will be sample charge


Quality Certification

SGS,ROHS,

ISO9001:2008, ISO14001:2004

quality system

100% of full line testing system, keep with the international standard

Inspection equipment

Caliper, Microcline, Torsion meterSalt atmosphere testing machineRing gauge, General gage, sclerometer, Projector, die gage, image screening instrument



3,products show 

M4X25 White Zinc Plated Phillips Pan Head Self Tapping Screw

M4X25 White Zinc Plated Phillips Pan Head Self Tapping Screw

M4X25 White Zinc Plated Phillips Pan Head Self Tapping Screw


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Q:What is the principle of screw
A simple mechanical one that can be used to overcome the difficulty of vertically lifting heavy objects. Distance ratio and force ratio are dependent on the inclination. Such as friction is very small, you can achieve very high efficiency
Q:No cross screwdriver, how can the screwdriver screwdriver?
Some nail holes have depth, you can use the female (black vintage kind) steel wire card flat steel filing with a file to repair a little more can be a little more, if the nail in the plane, The use will also be on the.
Q:What is the difference between Chinese-made screws and US screws?
Formal manufacturers of screws from the size of the model is no difference (except small factories or workshops), the difference is mainly from the manufacture of screws and materials used in the surface of the treatment process only. Say even the Chinese exports of screws, in terms of manufacturing is also in accordance with foreign standards or contract requirements (such as the use of foreign customers specific raw materials or technology), the cost is relatively high, not the domestic market sales. Reference it.
Q:How does the screw rust die?
Red: some of the top of the device screw corrosion to take shape, can not use wrenches, wire clamp discharge, both the impact method. First with a hammer and through the top of the cone in the vertical direction of the screw impact of a v-shaped groove. Then, adjust the chuck angle, along the direction of the screw out of the impact, see Figure 2. To be loose, you can use the wire clamp to screw out the screw. "A" or "ten" when the screw slide, you can also use this method, combined with the wire clamp screw out the screw.
Q:What screw can get into the iron?
Self tapping screw is a screw, on, do not have to pre-open the thread, it will spin out the thread, the Chinese name "self-tapping screws."
Q:Is the screw a bevel?
Can not simply say whether it is a specific analysis of specific issues
Q:How does the screw twist?
It depends on what your screw is the type of friends, if more than 8mm, we generally use, in the above welding a rod.
Q:Is the tail screw? If it is mainly used in what place? If not what are they different?
Normally, it should be called drilling screws, screws are the use of the object of the circular circular rotation and friction of the physical and mathematical principles, step by step to tighten the tools of the tools. Drilling screw is the front of the screw with self-tapping the head of the wood screws. Screw is thousands of years of people in the production of common inventions, according to the application field, it is the first major inventions of mankind. Drilling screws are in recent years people's new invention, also known as self-tapping screws. Main steel for connecting between the need for ordinary or high-strength bolts, plates with self-tapping screw connection. It can not be used for metal and metal bonding.
Q:What is the size of the screw for the wall power switch installation
Concealed switch generally M5 × 30 semi-round head screws, you can also use M4 × 30 tapping screws. Ming installed switch is used M5 expansion with M5's self-tapping screws.
Q:What tools are used to remove the screws, the two lines are grooves, the middle of a paragraph is convex
There is a multi-component tool that specializes in handling such screws.

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