Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Search is the most efficient way to navigate the Engineering ToolBox!

Wrench Spanners - Inches vs. mm

Sponsored Links

Wrench Spanners - Inches vs. mm
Standard SAE US Wrench/Spanner Size
(inches)
Metric Wrench/Spanner Size
(mm)
1/8 3.18
5/32 3.97
4
3/16 4.76
5
13/64 5.16
7/32 5.56
15/64 6.05
6
1/4 6.35
17/64 6.75
7
9/32 7.14
5/16 7.94
8
11/32 8.73
9
3/8 9.53
10
11
7/16 11.11
15/32 11.91
12
1/2 12.7
13
17/32 13.49
14
9/16 14.29
15
19/32 15.08
5/8 15.88
16
21/32 16.67
17
11/16 17.46
18
19
3/4 19.05
25/32 19.84
20
13/16 20.64
21
22
7/8 22.23
23
29/32 23.02
15/16 23.81
24
31/32 24.61
25
1 25.40
26
1 1/16 26.99
27
28
1 1/8 28.58
29
30
1 3/16 30.16
31
1 1/4 31.75
32
33
1 5/16 33.34
34
1 3/8 34.93
35
36
1 7/16 36.51
38
1 1/2 38.10
39
1 9/16 39.69
40
41
1 5/8 41.28
1 11/16 42.86
1 3/4 44.45
46
1 13/16 46.04
1 7/8 47.63
1 15/16 49.21
50
2 50.80
51
2 1/8 53.96
54
2 1/4 57.15
2 3/8 60.33
2 1/2 63.5
Sponsored Links

Related Topics

Fasteners

Bolts, nuts and threaded rods - torque, tension and loads.

Miscellaneous

Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.

Related Documents

Bolt Stretching and Tensile Stress

Tensile stress and Hooke's Law.

Cast Iron Flanges - ASME/ANSI Class 125

ASME/ANSI B16.1 Cast Iron Pipe Flanges and Flanged Fittings - Class 125 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Flanges - API vs. ASME/ANSI

API and ASME/ANSI flanges - comparing dimensions and pressure ratings.

Flanges - ASME/ANSI B16.5 Flanges and Bolt Dimensions - Class 150 to 2500

Diameters and bolt circles for standard ASME B16.5 flanges - 1/4 to 24 inches - Class 150 to 2500.

ISO 724 - Metric Threads

Dimensions of metric threads according ISO 724.

JIS - Flanges, Bolts, Nuts, and Gaskets Standards

Japanese industrial flanges, bolts, nuts, and gaskets standards and specifications from JAS - the Japanese Standards Association.

Length - Online Unit Converter

Convert between length units like meters, feet, inches, nautical miles and more.

Metric Steel Bolts - Grades and Property Classes

Metric steel bolts, screws and studs - proof and tensile strength.

Reduced Torque with Lubricated Bolts

Lubrication effect on bolt tension and torque.

Threaded Bolts - Stress Area

Threaded bolts tensile stress area.

UNC and UNF - Unified Coarce and Unified Fine Inch Threads

ANSI/ASME B1.1 Unified National Thread - UNC Coarse series and UNF Fine series.

US Bolts - Head and Wrench Sizes

Hex Bolt, Lag Bolt, Square Bolt and Heavy Hex Bolt.

US Machine Screws - Dimensions

Machine screw diameters.

Sponsored Links

Search Engineering ToolBox

Search is the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics on the AMP pages. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.