How do I know what size nut bolt I have?

How to Measure the Size of a Bolt

Step 1: Measure the shank’s diameter.
Step 2: Determine the thread pitch.
Step 3: Measure the length of the shank.
Step 4: Determine the bolt’s grade.
Step 5: Determine the shape of the bolt’s head.
Step 6: Measure the length of the threaded portion of the bolt.

What are the different types of nuts for bolts?

Types of Nuts

Hex Nuts. Hex nuts have a six-sided drive surface.
Lock Nuts. Nylon lock nuts have a hexagonal head and a built-in nylon ring.
Wing Nuts. Wing nuts are designed to allow fastening without the use of tools; the wings allow you to tighten or loosen them with a thumb and finger.
Cap Nuts.
Square Nuts.

What are the standard bolt sizes?

US Standard Thread Length for Bolts

Bolt Diameter	Standard Thread Length (in.) *
Bolts 6 inches and shorter	Bolts longer than 6 inches
5/8″	1-1/2″	1-3/4″
3/4″	1-3/4″	2″
7/8″	2″	2-1/4″

How do I know what size washer I need for bolts?

Select the same size washer diameter as the bolt diameter. An exception would be Fender Washers. By design, these allow you to select from two size options (i.e. 1/4 x 3/4). The first indicates the nominal inner diameter.

Is Bolt a size?

For sizes of 1/4″ or lower, a number is commonly used to designate the size. This is called a nominal measurement. Here are those numbers and their decimal equivalent. (T) Thread Diameter….Diameters of Screws / Bolts.