What size screw goes into ceiling fan box?

On normal electrical boxes, screws are usually 6-32… this being a bit light for a fan, also expect 8-32 or 10-32. Ground screws are 10-32. It’s not a coincidence that they are -32, given the thickness of standard metal junction boxes, that is the minimum number of threads to properly engage.

What size screw fits an electrical box?





The most common electrical box screw sizes are 6-32 and 8-32. Be sure to get round head or hex-head screws for inside the box, to prevent arcing. Use oval-head screws to attach cover plates.

What type of box can be used to support a ceiling fan?

Quote from the video:
Quote from Youtube video: If you want to put a ceiling fan in between joists you can use a fan support box like this which has a maximum weight of 70 pounds. And that's all metal.

How do I know if my electric box is rated for a ceiling fan?

The manufacturer must have marked the outlet box system to indicate that it is acceptable for ceiling fan installations. If the original box is not listed for this purpose, it must be retrofitted and attached securely to the building structure.

What size are ceiling fan motor screws?

Compare with similar items

This item Ceiling Fan Motor Screws SPT 16″ DC-Motor Drop Ceiling Fan, Multi
Finish Type Brass Plastics
Item Dimensions 5 x 2.5 x 0.5 inches
Material Brass Plastics
Number of Blades 5

What is a 8 32 screw?





The first number is the diameter. The bigger the number the bigger the screw. The second number is the number of threads per inch.

What screws do electricians use?

There are basically 3 types of anti tamper security screw that can be used to protect your electrical switches or 13 amp sockets;

  • Raised Countersunk Security Torx screws (3.5mm)
  • Raised Countersunk Security Hex screws (3.5mm)
  • Raised Countersunk Security Two Hole screws (3.5mm)


What is a 10-32 screw?

10-32 Threads



The number “10” is a size designator with no numerical meaning. The number “32” refers to 32 threads per inch. You can identify a 10-32 screw by measuring the diameter at exactly 3/16″ (4.76 mm).

What is a 6 32 screw?



Screws have three basic measurements: gauge, threads per inch, and shaft length in inches. So, you may also see a measurement like 6-32 x 1 1/2″. This means it’s a #6 diameter, with 32 threads per inch (almost double the normal thread count as a standard wood screw) and an inch and a half long.

What are 6/32 screws used for in electrical?

Receptacle screws are used to fasten outlet boxes or other receptacles to existing construction. Long screws are useful when mounting switch covers to thick surfaces, such as those with paneling. These receptacle screws feature a truss head, which is wider than both round and pan head screws.

Should I use #6 or #8 drywall screws?

Drywall only, please: Don’t use drywall screws for sub-floors, tile backing or other non-drywall applications. These denser materials can break the smaller #6 screw during installation. Use a #8 or larger for these jobs.