Tips and Tricks

Manufacturing and Making - Electrical and Electronic - Tools and Techniques - Tips and Tricks - IT Related - Emulation - Stuff and Nonsense - Ham Radio Links - Other Links - Main Page

In development: These pages are very much in development and need much work - send any suggestions to us on the normal channels!

Standards and Sizes

The standard tripod screw size for cameras and accessories is commonly known as the 1/4"-20 thread. This means that the screw has a diameter of 1/4 inch and a pitch of 20 threads per inch.

Conversions

Length (Distance)

• Inches(in) x 25.4 = Millimeters x 0.0394 = Inches (in)
• Feet (ft) x 0.305 = Meters (m) x 3.281 = Feet
• Miles x 1.609 = Kilometers (km) x 0.621 = Miles

Base quantity	1	2	3	4	5	6	7	10	50	100
Km in x Miles *	0.621371	1.242742	1.864113	2.485484	3.106855	3.728226	4.349597	6.21371	31.06855	62.1371
Miles in x Km *	1.60934	3.21868	4.82802	6.43736	8.0467	9.65604	11.26538	16.0934	80.467	160.934
Yards in x Meters *	0.9144	1.8288	2.7432	3.6576	4.572	5.4864	6.4008	9.144	45.72	91.44
Meters in x Yards *	1.09361	2.18722	3.28083	4.37444	5.46805	6.56166	7.65527	10.9361	54.6805	109.361
Feet in x Meters *	3.28084	6.56168	9.84252	13.12336	16.4042	19.68504	22.96588	32.8084	164.042	328.084
Meters to Feet *	0.3048	0.6096	0.9144	1.2192	1.524	1.8288	2.1336	3.048	15.24	30.48
mm in x Inches *	25.4	50.8	76.2	101.6	127	152.4	177.8	254	1270	2540
Inches in x mm *	0.0393701	0.0787402	0.1181103	0.1574804	0.1968505	0.2362206	0.2755907	0.393701	1.968505	3.93701

Volume (Capacity)

• Cubic Inches (CU in) x 16.387 = Cubic Centemeters (cc) x 0.061 = Cubic Inches (CU in)
• Imperial Pints (imp Pt) x 0.568 = Litres (l) x 1.76 = Imperial Pints (imp Pt)
• Imperial Quarts (Imp qt) x 1.137 = Litres (l) x 0.88 = Imperial Quarts (Imp qt)
• Imperial Quarts (Imp qt) x 1.201 = US Quarts (US qt) x 0.833 = Imperial Quarts (Imp qt)
• US Quarts (Imp qt) x 0.946 = Litres (l) x 1.057 = US Quarts (Imp qt)
• Imperial Gallons (Imp gal) x 4.546 = Litres (l) x .22 = Imperial Gallons (Imp gal)
• Imperial Gallons (Imp gal) x 1.201 = US Gallons (US Gal) x 0.833= Imperial Gallons (Imp gal)
• US Gallons (US Gal) x 3.785 = Litres (l) x 0.264 = US Gallons (US Gal)

Mass (weight)

• Ounces (oz) x 28.35 = Grams (g) x 0.035 = Ounces (oz)
• Pounds (lb) x 0.454 = Kilograms (kg) x 2.205 = Pounds (lb)

Bolt sizes and Threads

Designation	Nominal Dia (mm)	Nominal Dia (inch)	Pitch (mm)	Pitch (per inch)	Angle	1.7|0.0669|-
1.9|0.0748|47.5
2|0.0787|60
2.2|0.0866|47.5
2.5|0.0984|47.5
2.5|0.0984|60
2.8|0.1102|47.5
3|0.1181|60
3.175|0.125|55
3.2|0.126|47.5
3.6|0.1417|47.5
4|0.1575|60
4.1|0.1614|47.5
4.7|0.185|47.5
4.7625|0.1875|55
4.7625|0.1875|55
5|0.1969|60
5.3|0.2087|47.5
5.5563|0.2188|55
6|0.2362|60
6|0.2362|47.5
6.35|0.25|60
6.35|0.25|55
6.35|0.25|60
6.35|0.25|55
7|0.2756|60
7.1438|0.2813|55
7.9375|0.3125|60
7.9375|0.3125|55
7.9375|0.3125|60
7.9375|0.3125|55
8|0.315|60
8|0.315|60
9.525|0.375|60
9.525|0.375|55
9.525|0.375|60
9.525|0.375|55
10|0.3937|60
10|0.3937|60
10|0.3937|60
11.1125|0.4375|60
11.1125|0.4375|55
11.1125|0.4375|60
11.1125|0.4375|55
12|0.4724|60
12|0.4724|60
12|0.4724|60
12.7|0.5|60
12.7|0.5|55
12.7|0.5|60
12.7|0.5|55
14|0.5512|60
14|0.5512|60
14.2875|0.5625|60
14.2875|0.5625|55
14.3002|0.563|60
14.2875|0.5625|55
15.875|0.625|60
15.875|0.625|60
15.875|0.625|55
15.875|0.625|55
16|0.6299|60
16|0.6299|60
17.4625|0.6875|55
17.4625|0.6875|55
18|0.7087|60
18|0.7087|60
19.05|0.75|60
19.05|0.75|55
19.05|0.75|60
19.05|0.75|55
20|0.7874|60
20|0.7874|60
20.6375|0.8125|55
22.225|0.875|60
22.225|0.875|55
22.225|0.875|55
25.4|1|60
25.4|1|55
25.4|1|60
25.4|1|55
28.575|1.125|60
28.575|1.125|55
28.575|1.125|60
28.575|1.125|55
31.75|1.25|60
31.75|1.25|55
31.75|1.25|60
31.75|1.25|55
34.925|1.375|60
34.925|1.375|55
38.1|1.5|60
38.1|1.5|55
38.1|1.5|60
38.1|1.5|55
41.275|1.625|55
44.45|1.75|60
44.45|1.75|55
44.45|1.75|60
44.45|1.75|55
50.8|2|60
50.8|2|55
50.8|2|60
50.8|2|