What size nut goes on a 1/2 inch bolt?

US Nut Size TableSizeDiameter*Hex NutMachine Screw Nut5/16″1/2″9/16″3/8″9/16″5/8″7/-17

How do I know what size wrench I need?

Measure the distance across the flat sides of the bolt head using the vernier caliper. This measurement will give the size of wrench you would need to unfasten or tighten this bolt. Use inches for standard bolts and millimeters for metric bolts.

What are the wrench sizes in order?

What are the wrench sizes in order ? Standard American wrench sizes, from the largest to smallest and measured in inches, are 5/8, 19/32, 9/16, 1/2, 7/16, 3/8, 11/32, 5/16, 9/32, 1/4, 7/32, 3/16, 5/32 and 1/8. Wrenches are available in a set or individually.

Is a hex key and Allen wrench the same thing?

Allen wrenches, which are also called hex-key wrenches or hex keys, have a hexagonal cross section to fit various machine screws and set screws that have hexagonal-shaped recessed holes.

What are the SAE wrench sizes?

Wrenches: Standard Combination Wrenches (1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1) Metric Combination Wrenches (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19) Standard Flare Nut Wrenches (3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 7/8) Note: Each wrench may combine two sizes.