expanding nuts & bolts

Tek screws are characterized by their unique, cutting-edge tip that allows them to drill into hard substrates without the need for a pre-drilled hole. This feature significantly simplifies the installation process, saving time and reducing the need for additional tools. Commonly made from high-strength steel and often treated to resist corrosion, Tek screws are built to withstand harsh conditions, making them suitable for use both indoors and outdoors.


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The terms 3% and 4% often relate to the percentage of the anchor bolt’s yield strength in relation to the concrete’s compressive strength. For example, a 3% concrete anchor bolt means that the bolt can withstand loads up to 3% of the concrete's yield strength, while a 4% bolt can handle loads up to 4%. This distinction is vital for engineers and contractors, as it influences load calculations, safety factors, and the overall design of the structure.


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Secondly,the desired holding power is another important factor to consider when selecting the correct wedge, bolt, and drill size. The holding power of a fastener is determined by its diameter, length, and thread pitch. Generally speaking, larger fasteners with higher thread pitches provide greater holding power. However, it's important to ensure that the fasteners you select are appropriate for the thickness of the material being fastened. If the fasteners are too large for the material, they may not be able to penetrate the material fully, resulting in reduced holding power.

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In conclusion, the hex head self-tapping screw with a rubber washer is a testament to the innovation in fastener technology. It combines strength, precision, and adaptability, offering a reliable solution for a wide range of applications. Whether you're building a deck, assembling electronic equipment, or repairing a car, this humble yet powerful fastener is an invaluable asset. Its effectiveness lies in its simplicity, proving that sometimes, the most effective tools are those that do their job efficiently and unobtrusively.

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  • The production process of titanium dioxide powder mainly includes ore selection, acid decomposition, hydrolysis, washing, drying, calcination, and crushing. During this process, strict quality control is required to ensure that the final product meets the relevant standards. Moreover, environmental protection measures must be taken during the production process to minimize the impact on the environment.
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  • White Titanium Dioxide Factory A Hub of Technological Innovation and Sustainable Production
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  • One of the primary uses of titanium dioxide is as a pigment in cosmetics and personal care products. It provides a natural, white color to products such as foundations, powders, and lipsticks, making them look more appealing to users. Additionally, titanium dioxide has excellent UV protection properties, which help protect the skin from harmful sun rays. This makes it an essential ingredient in sunscreens and other skincare products.
  • 6. What happens next?

  • Lomon, one of the leading titanium dioxide manufacturers in China, produces the R996 grade titanium dioxide with purity levels exceeding 99%. This high purity ensures that the pigment provides excellent hiding power and color retention in paints, making it a popular choice for the paint industry.


  • While price is an important factor when selecting a coatings titanium dioxide supplier, it should not be the sole determining factor Price and Availability
  • Zn + n NH 3 + 2H 2 0→ [Zn NH 3 n] 2+ + H 2 + 20H— (unreacted zinc powder in the replacement slag) ZnS0 4 + n NH 3 → [Zn (NH 3 ) n ] 2+ +S0 4 2 
  • Lithopone, a staple in the paint industry, boasts a unique blend of properties that make it an indispensable component for achieving high-quality finishes. Among its many variants, B301 and B311 stand out as two of the most sought-after types due to their specific characteristics and performance metrics. In this brief exploration, we will delve into the significance of these lithopone grades, discuss factors affecting their price lists, and highlight the role of reputable suppliers in ensuring consistent quality and availability.