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Grade 4.8 Carbon Steel Machine Screws

Diameter (d):

  • ST5.5
  • ST6.3
  • ST8

Length (L):

  • 56
  • 65
  • 75
  • 100
  • 150

Finish:

  • Color zinc
  • Mechanical galvanizing
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Specification

Description

4.8 Grade Carbon Steel Machine Screws are a common type of fastening hardware used in various industrial and construction applications. These screws are made from carbon steel, which provides a good balance of strength, ductility, and cost-effectiveness. The "4.8" grade indicates the material's mechanical properties: the first number (4) represents 400 MPa of ultimate tensile strength, and the second number (0.8) signifies that the yield strength is 80% of the tensile strength, approximately 320 MPa.

These screws are typically zinc-plated to enhance corrosion resistance and provide a smooth, uniform appearance. They are available in a range of head types, including Phillips, slotted, and hex, and can be used with matching drive tools for efficient installation. The threads of these screws are designed to create a secure and tight fit when screwed into metal, wood, or plastic, making them versatile for numerous applications where a reliable mechanical fastener is required.

about us

Hangzhou Jiangxin Industry Co., Ltd. was established in 2004. It is a national high-tech enterprise and a scientific and technological enterprise in Zhejiang Province. It is a professional fastener manufacturer, integrating production, R&D, and sales. It has advanced fastener production equipment in the world and uses an advanced ERP system for management. Grade 4.8 Carbon Steel Machine Screws Suppliers.

The company has passed the IS09001 international quality management system certification and has distribution outlets and logistics distribution centers in East China. The company specializes in the production and operation of standard and non-standard parts such as German standard (DIN), American standard (ANSI, ASME), international standard (ISO), national standard (GB), Japanese standard (JIS), and British standard (BSW), high-strength bolts, and high-grade expansion bolts. The materials involve various carbon steels and stainless steels (304 and 316). The products are widely used in the fields of high-speed railway, automobile, ship, machinery, mold, electronics, and construction. Custom Grade 4.8 Carbon Steel Machine Screws. With its good performance, fast installation, beautiful appearance, stable compatibility, and many other advantages, it is favored by Chinese and foreign merchants.

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