Yellow ZInc Plated Countersunk Head drywall Self Tapping Screws

1. Product Description

Chipboard screws come in a variety of lengths and can be used to fasten chipboard in variety of applications. Average length chipboard screws are often used to join chipboard flooring to regular wood joists. Smaller screws may be used to fasten hinges to chipboard cabinetry. Very long screws may be used to butt chipboard to chipboard when making cabinets. Average screws are 1.5 inches (around 4 cm), small screws are usually ½ inches (around 1.5 cm), longer screws are 5 inches (around 13 cm).

Different shapes and materials of chipboard screws are common as well. The most common screws are made out of zinc, yellow zinc, brass or black oxide. Popular heads are either pan, flat or bugle, and popular gauges are 8 and 10. Screws may have Phillips or square (Robertson) screw drives.

ANSI/ASME B18.6.4—Thread Forming And Thread Cutting Tapping Screws And Metallic Drive Screws (Inch Series)
SAE J933—Mechanical and Quality Requirements For Tapping Screws
SAE J81—Thread Rolling Screws
SAE J1237—Metric Thread Rolling Screws
SAE J78—Steel Self-Drilling Tapping Screws
FIP 1000—Tapping Screws Performance Specifications
DIN 7500—Thread Rolling Screws For ISO Metric Screws Thread
DIN 7504—Self-Drilling Tapping Screws Dimensions,Requirements And Testing
ISO 2702—Heat-Treated Steel Tapping Mechanical Properties
JIS B1055—Mechanical Properties For Heat-Treated Steel and Stainless Tapping Screws

2. Specification

3. Application

Chipboard screw used for non-metal or soft metal, do not hit the bottom hole and tapping. In other words: drill hole without tap holes, with screws and general different, head for the sharp, tooth pitch is relatively large, and a bit like wire tapping without crumbs, you can not tap directly into the rotation, metal and plastic typically use this method.
Chipboard screw mainly used for some thin plate member is connected to the fixed, such as color plate color plate and connected, color steel and purlins, wall beams connected, with its ability to penetrate a generally not more than 6mm, the maximum does not exceed 12mm. Fiberboard nail often exposed outdoors, itself has a strong corrosion resistance; a rubber gasket to ensure screws at the water impermeable and has good corrosion resistance.

4. Advantages

As a family owned business, our goal has always been to provide customers with unmatched personalized service and support. Knowledge gained as both an applicator and a chemical manufacturer gives us extra insight and control over how to meet even the toughest requirements. Our processing divisions deal directly with regional customers and pride themselves on their quality and delivery.

1.fine quality and competitive price,

2.up to international standard,

3.fast delivery,

4.fast but the best service..

5. More pictures