China Factory Cheap Brass Pan Head Machine Screws - Hot sale hex head roofing screws taiwan quality C1022A slef-drilling screw hex head Self Drilling Screws – YouYou factory and suppliers

Factory Cheap Brass Pan Head Machine Screws - Hot sale hex head roofing screws taiwan quality C1022A slef-drilling screw hex head Self Drilling Screws – YouYou

Short Description:

Name: High Quality square wire mesh  Electro hot dipped galvanized welded wire mesh
Material:  Low carbon steel wire,stainless steel wire,chemical fibre,AL-MG alloy wire,galvanized 
wire,PVC wire
Usage:  Used in industries and constructions to sieve grain powder,filter liquid and gas,for other 
purposes like safe guards on machinery enclosures. Besides,it is widely applied for the substitute 
of wood strips in making wall and ceiling.
Workmanship:  Hot dipped galvanized before or after weaving: Electric galvanzied before or after 
weaving.

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Factory Cheap Brass Pan Head Machine Screws - Hot sale hex head roofing screws taiwan quality C1022A slef-drilling screw hex head Self Drilling Screws – YouYou Detail:

Product Name:self-drilling screw
Material:stainless steel/carbon steel.
Color:sliver/black/zinc
Standard: DIN ISO JIS GB ANSI ASME BSW
Grade:A2-70/A4-80/4.8/8.8/12.8
Package:
1. We have several sizes of packing dimensions, can be 20kg or 25kg per carton;
2. For large orders, we can design specific sizes of boxes and cartons;
3. Normal Packing: 1000pcs/500pcs/250pcs per small box. then small boxes into cartons.
4. Can provide special packings as clients requests;
Features:
 1. We supply credible products with high quality in timely delivery.
 2.All of our products are inspected by QC before packing
 3.Standard export package or according to your requirements.
How are self drilling screws measured?
They are measured from the top of the head to the tip. Hex and hex washer head screws and bolts, 
although flat on the top and the bottom, are measured from the bottom of the head. From that point 
to the tip is the length of the screw. Self drilling screws are measured all the way to the end of the 
drill point tip.
Do you need a pilot hole for self drilling screws?
While self-tapping screws will tap a hole into a soft material, self-drilling screws are capable of drilling 
a hole into anything from metal to wood. This key difference is self-drilling screws have a tip like a 
drill bit, so they do not need a pilot hole.
What is the difference between self drilling and self tapping screws?

Self-drilling screws eliminate the need for a pilot hole, but can tap as well. Self-tapping screws tap

their own threads, but cannot drill through metal and require a pilot hole. These screws are not

interchangeable, and mixing up the two can cause many headaches or possible failures in the field.

What are self drilling screws used for?

Self drilling screws have a point that acts as a drill bit and sharp cutting threads that tap the hole

during installation. Self drilling screws are a commonly used variety of screw for quick drilling into

both metal and wood. A self drilling screw can typically be identified by its point and flute (notch) tip.

size(mm)	size(mm)	size(mm)
4.2*13	5.5*32	6.3*25
4.2*16	5.5*38	6.3*32
4.2*19	5.5*41	6.3*38
4.2*25	5.5*50	6.3*41
4.2*32	5.5*63	6.3*50
4.2*38	5.5*75	6.3*63
4.8*13	5.5*80	6.3*75
4.8*16	5.5*90	6.3*80
4.8*19	5.5*100	6.3*90
4.8*25	5.5*115	6.3*100
4.8*32	5.5*125	6.3*115
4.8*38	5.5*135	6.3*125
4.8*45	5.5*150	6.3*135
4.8*50	5.5*165	6.3*150
5.5*19	5.5*185	6.3*165
5.5*25	6.3*19	6.3*185

Self drilling screw: self-drilling screw connect componenets in one worek step:the drill ,from the thread and fasten .

This reduces the installation time,saves tool changes and costs for drills.

Self drilling screw: self -drilling screw are availablein,stianelss steel for weather-exposed areas and in zinc,plated steel for unweathered areas.

These steel screws hace a head encapsulated by chemical.resistant stainless steel . a rubber-bonded washer compresses to form a,watertight seal.

The save you time,and effort by drilling theri own holes and fastening in a single operation

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We insist on offering good quality generation with very good business enterprise concept, honest income as well as best and fast assistance. it will bring you not only the premium quality product or service and huge profit, but probably the most significant is usually to occupy the endless market for Factory Cheap Brass Pan Head Machine Screws - Hot sale hex head roofing screws taiwan quality C1022A slef-drilling screw hex head Self Drilling Screws – YouYou , The product will supply to all over the world, such as: Porto, Swiss, Belarus, Our domestic website's generated over 50, 000 purchasing orders every year and quite successful for internet shopping in Japan. We would be happy to have an opportunity to do business with your company. Looking forward to receiving your message !

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