What are the specifications of screws for electrical equipment distribution boxes?

What are the specifications of screws for electrical equipment distribution boxes?

Distribution box screw specifications are generally M3, M4, M5, M6, M8, etc. Different specifications of screws are suitable for various occasions and needs.

Metric Brass Pan Head Phillips Screws: Made from brass, these pan head screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive. Length is measured from under the head.

Alloy Steel Button Head Hex Drive Screws: Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws. Length is measured from under the head.

Black-oxide alloy steel screws are mildly corrosion-resistant in dry environments.

Zinc-plated alloy steel screws resist corrosion in wet environments.

M3 screws: M3 screws are one of the most miniature screws in the distribution box, with a diameter of 3mm, suitable for the need to fasten small parts, and the hardness of the distribution box does not require a high level of occasions.M3 screws are usually used to fix circuit boards, connecting wires and so on.

18-8 Stainless Steel Button Head Hex Drive Screws：18-8 stainless steel button head screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.

Passivated stainless steel screws provide added protection against oxidation and corrosion.

M4 screws: M4 screws are 4mm in diameter, more robust than M3 screws, with more vital load-bearing capacity. M4 screws are often used in distribution boxes to fix medium-sized parts and connecting lines.

18-8 Stainless Steel Pan Head Phillips Screws：18-8 stainless steel pan head screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head. For partially threaded screws, thread length may vary from the minimum thread length published to fully threaded.

Passivated stainless steel screws provide added protection against oxidation and corrosion.

Chrome-plated stainless steel screws have a decorative, mirror-like finish. PTFE-coated stainless steel screws won’t stick or bind as you thread them into a hole.

Black-oxide stainless steel screws have a matte-black finish.For high-quality JIS Stainless Steel Pan Head Screws fasteners and professional technical support, don't hesitate to contact us at adelajonly@gmail.com or visit our website at [Juxin Fasteners]: https://www.juxinfasteners.com.

M5 screws: M5 screws are 5mm in diameter, suitable for fixing parts and connecting lines that need to withstand enormous torque, with greater strength than M4 screws.

18-8 Stainless Steel Extra-Wide Truss Head Phillips Screws,18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. These screws have an extra-wide truss head that distributes holding pressure to reduce the likelihood of crushing thin material. Length is measured from under the head.

Passivated stainless steel screws have added protection against oxidation and corrosion.

M6 screws: M6 screws have a diameter of 6mm and are suitable for use in large distribution boxes with high load-bearing capacity. In the installation of large parts and fastening high-strength structures, M6 screws are usually the preferred specifications. Stainless Steel Decorative Round Head Phillips Screws, Made from 18-8 stainless steel, these round head screws have good chemical resistance and may be mildly magnetic. They are passivated for added protection against oxidation and corrosion. The tall, domed head provides a finished appearance. Length is measured from under the head.

M8 Screws: M8 screws with a diameter of 8mm are one of the most significant standard screw specifications in distribution boxes, with strong load-bearing capacity, suitable for a variety of occasions with high requirements for hardness and load-bearing. In the fixed distribution box as a whole or large equipment, often use M8 screws.

Stainless Steel Decorative Round Head Phillips Screws, Made from 18-8 stainless steel, these round head screws have good chemical resistance and may be mildly magnetic. They are passivated for added protection against oxidation and corrosion. The tall, domed head provides a finished appearance. Length is measured from under the head.

JIS Stainless Steel Pan Head Screws: Made to Japanese Industrial Standards, these screws have narrower and shorter heads than standard Phillips pan head screws. They are chemical resistant and may be mildly magnetic. Length is measured from under the head.

In general, the commonly used screw specifications in the distribution box are M3, M4, M5, M6, M8, M10, M12, M14, M16, etc. Different specifications are suitable for various occasions and needs. Choosing and using the distribution box would be best to choose according to the actual situation and requirements.