タイトルまたは説明

Self-tapping screws come in all sizes and tip types, and they have various shaped heads. When you choose the right size self-tapping screw, you should take into account the length of the screw tip, according to the materials thickness.Self-tapping screws drill their own holes when they are screwed into materials such as wood, plastic and metal.

1. Multicolor choose and competitive Price
2. Superior Quality,ISO***1:***0 quality assurance
3.Minimum Order: *0,**0 pieces 

Specifications of Self Tapping Screw:
1. Standard:
DIN***8: Hex washer head self-tapping screw
DIN***2: Countersunk head self-tapping screw
DIN***1: Pan head self-tapping screw etc.
2. Material: carbon steel (C***2), stainless steel (SS**4, SS**2, SS**6, SS**6L), alloy steel, iron, common steel, etc
3. Surface treatment:zinc plated, Cr3+Cr6+Zinc plated, black, head colored dacromet, HDG etc.
4. Thread: AB Type, A type
5. Size: 3.5x*6mm – 6.3x**0mm
6. Packing Specification:
a. Bulk
b. Commodity packing
c. Shipping packing: *5kg/ctn, etc.
d. According to the customers' request.

Our Advantages:
1. High hardness
2. High and low temperature resistant
3. Multicolor choose
4. Competitive Price
5. Superior Quality, TUV CERT ISO***1:***0 quality assurance
6. Artificial stone without any radiation
7. Punctual Delivery
8. Supply wooden pallet
9. Meet different market’s need: America, Europe, Asia, and so on.
*0.Widely used in wood furniture, construction and so on 

Types of Self-Tapping Screws:
Self-tapping screws can be put into both plastic and metal materials. They are capable to cut material and create threads, which remove the steps of pre-drilling and tapping from many building and machining projects. The builders have to choose the right one for each project if they fully understand the properties and applications of different types of self tapping screws.

Thread-Forming Screws
• Thread-forming screw is a type of screw that forms the material around a hole until it wraps around the screw threads. Thread-forming screws do not remove any material from the engaged section.

Thread-Cutting Screws
• Thread cutting screws are generally for applications where internal stresses are not advisable or where excessive driving torque would be encountered with thread forming screws. The point of the screw has been formed with a cut of varying types for specific applications. 

Self-Tapping Screw Heads and Drives:
• Most machinists usually classify thread-cutting and thread-forming screws according to their head type. Shape and drive are two general characteristics when choosing Self-tapping screw heads. Shape refers to both the form and size of a self-tapping screw. Hexagonal heads are called "hex head" screws, flat-topped, tapered heads are called "countersunk" heads and rounded heads are called "round" or "pan" heads. Flat countersunk head, oval countersunk head, pan head, hex and hex washer head are first fifth common heads when people choose self tapping screws.

• Drive refers to the type of screwdriver bit used to twist the screw. Self-tapping screws are available as Phillips drive, slotted driver, star, square and hex drive. 

Hex washer head self-tapping screw Din ***8

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