Hose Clamp Sizes Chart

Hose clamps are also known as worm drive clamps, worm gear clamps, and worm screw clamps.

Hose clamps are used to attach hoses and tubing to pipes and fittings and keep them in place. Worm drive hose clamps are popular because they are adjustable, easy to use, and don’t require any special tools to install or remove—all you need is a screwdriver, nut driver, or socket wrench to install or remove them.

You can fully open the band to attach hose clamps to hoses and tubing that have already been installed. Outside of hose applications, similar fasteners have applications.

Hose Clamp Sizes

There are different sizes, and measuring them will reveal that you will never use some because they are too large or small.

You can use the charts in our guide to determine the minimum clamp diameter and a maximum diameter of the stainless steel band you require.

By the end, you’ll see that changing a hose clamp on your car engine, or in limited spaces, is easier when using micro hose clamps or stainless steel bands that tighten with the fewest turns. (Read Our Socket Size Chart Guide)

How Do I Know What Size Hose Clamp I Need?

Install the hose or tube on the fittings or pipes and measure their diameter to establish their size. Then, choose a clamp that fits this diameter in the middle.

Install the hose (or tubing) on the fitting or pipe to determine the size required, then measure the outside diameter of the hose lock and select a hose clamp size that fits that diameter in the middle of its range.

If you know the hose’s installed outside circumference, multiply it by 3.14.

Hose clamps have a minimum and maximum diameter range that is specified in inches; some clamps also have an SAE (Society of Automotive Engineers) size.

  1. To determine the size, measure the hoses outside diameter.
  2. Install the hose on the fitting or pipe that stretches your hose.
  3. Select a clamp that fits a diameter in the middle of the range.
  4. To convert circumference to diameter, divide the installed outer circumference of the hose by 3.14 (pi).

Hose Clamp Standard Series:

Hose Clamps are the most popular and can be found in automotive and industrial settings. The smallest clamp diameters are, for example, 3/8″, and the largest is roughly 8 7/16″.

The bands are 1/2″ wide, and the screws are 5/16″ slotted hex head. SAE torque standards are met or exceeded using these clamps.

Miniature Clamp Series:

When it comes to hoses, Miniature series hose clamps are used to secure hoses and tubes with small outside diameters, such as air, fluid, and fuel lines.

The smallest inner diameter is 7/32,” and the largest is approximately 1 3/4″ as an example.

The bands measure 5/16″ wide, with a 1/4″ slotted hex head screw. Because of their compact size and minimum clamp diameter, they may be installed in tight spaces.

The stainless steel band on partial stainless steel hose clamps is recommended for most applications; the plated screw and housing offer fair corrosion resistance.

  • Choose stainless steel clamps with a stainless steel band, screw, and housing for maximum corrosion resistance. A domestic producer produces these high-quality hose clamps.
  • On fittings with a single barb, insert the hose clamp into the recess. Make sure the clamp is positioned over the barbs of multiple barb fittings before using. Do not exceed the clamp’s recommended torque when tightening it.
  • Soft hoses, such as silicone, should not be used with these hose clamps because the slots in the band can extrude or tear the hose. Also, ensure sure the clamp you choose is appropriate for the job.
  • Ideally, the outer diameter of the barbed fitting pushed into your hose should match the hose’s inner diameter, but if the barb is slightly larger than the hose’s inner, it will work.

What Sizes Do Hose Clamps Come In?

Hose clamp size refers to the clamping diameter range, measured in inches as a minimum and maximum usable diameter; SAE (Society of Automotive Engineers) size is frequently used to identify individual clamps.

  1. Attach the hose or tube to the pipe or fitting.
  2. To determine the appropriate size, use a tape measure to measure the hose’s external diameter (external edges) and choose a clamp from the middle of the range that suits that external diameter.
  3. Divide the installed outside circumference of the hose by 3.14 to convert circumference to diameter (pi).

Clamps come in various styles, including standard, all-stainless, and silicone clamps. The chart below lists all the most common sizes, allowing you to select the best hose clamp for your needs. (Read Our Wrench Size Chart Guide)

Larger hose clamp sizes are available, although uncommon and not considered standard.

Remember to check the column of any spring hose clamp size chart for measurements in inches and millimeters.

Hose Clamp, Standard

The most popular hose clamps are the standard series found in automotive and industrial applications.

  • The smallest clamp measures 3/8″ in diameter, while the largest measures nearly 8 7/16″.
  • The bands are 1/2″ wide, and the screws have a 5/16″ slotted hex head. SAE torque standards are fulfilled or exceeded with these clamps.

Hose Clamp, Miniature

Small diameter hose clip offerings are used on tubing, such as air, fluid, and gas lines, which are clamped with small hose clamps for confined places.

  • The smallest has an adjustable measured diameter of 7/32,” and the largest is roughly 1 3/4″.
  • The bands are 5/16″ wide with a 1/4″ slotted hex head screw. Because of the small diameter of the clamp size, they can squeeze into narrow locations.
SAE Type "M" - Miniature Worm Drive Size Chart   
SAE SizeClamp Range (in.)Clamp Range (mm)
41/4" - 5/8"6 mm - 16 mm
65/16" - 7/8"8 mm - 22 mm
83/8" - 1"10 mm - 25 mm
103/8" - 1-1/16"10 mm - 27 mm

The sizes provided are simply a reference, as they can vary from manufacturer to manufacturer.

The standard size identifier for worm-drive clamps ID is SAE # – Society of Automotive Engineers.

Hose clamps with a worm drive or worm gear are the most common.

A 1/2″ wide band and a 5/16″ slotted hex head screw are common, although you should not use hoses of soft/silicone.

The hose clamps meet the requirements of ANSI/SAE J 1670, which specifies “Type F clamps for plumbing purposes.”

What Size is a #10 Hose Clamp?

Here you can find the ideal hose clamp size chart that covers the most suitable sizes commonly used for various tasks.

Stainless Steel Band Hose Clamp

Standard Stainless Steel Band Hose Clamp Size Chart

SAE Type "F" - Standard Worm Drive Clamp Size Chart  
SAE SizeClamp Range (in.)Clamp Range (mm)
Minimum Diameter to Maximum diameter
63/8" - 7/8"10 mm - 22 mm
87/16" - 1"11 mm - 25 mm
101/2" - 1-1/16"13 mm - 27 mm
121/2" - 1-1/4"13 mm - 32 mm
1613/16" - 1-1/2"21 mm - 38 mm
2013/16" - 1-3/4"21 mm - 44 mm
24" - 2"25 mm - 51 mm
281-5/16" - 2-1/4"35 mm - 57 mm
321-9/16" - 2-1/2"40 mm - 63 mm
361-13/16" - 2-3/4" 46 mm - 70 mm
402" - 3" 2" - 3" 51 mm - 76 mm
442-5/16" - 3-1/4"59 mm - 82 mm
482-9/16" - 3-1/2"65 mm - 89 mm
5252 2-13/16" - 3-3/4"72 mm - 95 mm
563" - 4" 76 mm - 101 mm
603-5/16" - 4-1/4"84 mm - 108 mm
643-9/16" - 4-1/2" 91 mm - 114 mm
724" - 5" 102 mm - 127 mm
804-5/8" - 5-1/2"118 mm - 140 mm
885" - 6" 127 mm - 152 mm
965-5/8" - 6-1/2"143 mm - 165 mm
1046" - 7"153 mm - 178 mm
1285-11/16" - 8-1/2"144 mm - 216 mm

What Size Is A 36 Hose Clamp?

The most often used full-size worm drive hose clamps sizes are listed below.

For heavier-duty installation applications, the stainless-steel band provides a larger bearing surface.

The 5/16″ worm drive hose clamp, which can secure any pipe this size or smaller, is the most popular screw with a slotted hex head.  (Read our AC Compressor Oil Capacity Chart)

Here you can find the full-size SAE hose clamp size chart for hose clamps you can adjust with a worm drive fitting.

Full-Size Worm Drive Hose Clamp Size Chart  
SAE SizeHose Clamp Range (in.)Tube Clamp Range (mm)
63/8" - 7/8"10 mm - 22 mm
87/16" - 1"11 mm - 25 mm
101/2" - 1-1/16"13 mm - 27 mm
121/2" - 1-1/4"13 mm - 32 mm
1613/16" - 1-1/2"21 mm - 38 mm
2013/16" - 1-3/4"21 mm - 44 mm
24 1" - 2"25 mm - 51 mm
281-5/16" - 2-1/4"35 mm - 57 mm
321-9/16" - 2-1/2"40 mm - 63 mm
361-13/16" - 2-3/4" 46 mm - 70 mm
402" - 3" 51 mm - 76 mm
442-5/16" - 3-1/4"59 mm - 82 mm
482-9/16" - 3-1/2"65 mm - 89 mm
522-13/16" - 3-3/4"72 mm - 95 mm
563" - 4" 76 mm - 101 mm
603-5/16" - 4-1/4"84 mm - 108 mm
643-9/16" - 4-1/2" 91 mm - 114 mm
724" - 5" 102 mm - 127 mm
80 4-5/8" - 5-1/2"118 mm - 140 mm
885" - 6" 127 mm - 152 mm
96 5-5/8" - 6-1/2"143 mm - 165 mm
104 6" - 7"153 mm - 178 mm
1285-11/16" - 8-1/2"144 mm - 216 mm

Hose Clamp Sizes Chart

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