Harken Deck Specs | Traveler | Mainsheet | Genoa Lead Car | Boom Vangs | Outhauls Systems | Cunninghams | Spinnaker | Spinnaker Pole Handling | Mastbase & Cabin Top | Backstay Adjusters | Mainsail Reefing | Self-Tracking Jibs /Staysails | Metric Conversions /Drilling Guide | Rigging Breaking Strengths | Loading Formulas | Ball Bearings | Maintenance

Reference > Metric Conversions

This catalog shows both Imperial and metric throughout. In most cases, the metric dimension shown is calculated from the Imperial measurement and rounded to a whole number. For example, 5/16" is generally shown as 8 mm while an exact conversion would be 7.9375 mm. Obviously, when referring to a line diameter, it is sufficient to approximate the conversion. In cases where a dimension is critical, exact metric dimensions are shown. For example, a rudder bearing with an inside diameter of 2.006 inches is shown with a metric inside diameter of 50.95 mm.

Length			Area
When you know	Divide by	To find	When you know	Divide by	To find
Inches	25.40	Millimeters	Square Inches	645.2	Square Millimeters
Inches	2.540	Centimeters	Square Inches	6.452	Square Centimeters
Feet	304.80	Millimeters	Square Feet	929.0	Square Centimeters
Feet	30.48	Centimeters	Square Feet	0.0929	Square Centimeters
Feet	.03048	Meters	Square Yards	0.8361	Square Meters
When you know	Divide by	To find	When you know	Divide by	To find
Millimeters	25.40	Inches	Square Millimeters	645.2	Square Inches
Centimeters	2.540	Inches	Square Centimeters	6.452	Square Inches
Millimeters	304.8	Feet	Square Centimeters	929.0	Square Feet
Centimeters	30.48	Feet	Square Meters	0.0929	Square Feet
Meters	.3048	Feet	Square Meters	0.8361	Square Yards
Weight
When you know	Divide by	To find	When you know	Divide by	To find
Ounces	28.35	Grams	Grams	28.35	Ounces
Pounds	0.4535	Kilograms	Kilograms	0.4535	Pounds

Harken Deck Specs | Traveler | Mainsheet | Genoa Lead Car | Boom Vangs | Outhauls Systems | Cunninghams | Spinnaker | Spinnaker Pole Handling | Mastbase & Cabin Top | Backstay Adjusters | Mainsail Reefing | Self-Tracking Jibs /Staysails | Metric Conversions /Drilling Guide | Rigging Breaking Strengths | Loading Formulas | Ball Bearings | Maintenance

Reference > Fastner Types

Reference > Drilling Guide

Drilling Guide
Fastener	Drill for Clearance Hole	Drill for Tapping	Fastener	Drill for Clearance Hole	Drill for Tapping
mm	mm	mm	in	in	in
2	2.25	1.6	6-32	9/64	#36
2.5	2.75	2.05	8-32	11/64	#29
3	3.25	2.5	10-24	13/64	#25
4	4.25	3.25	10-32	13/64	#21
5	5.25	4.25	1/4-20	17/64	#7
6	6.25	5	5/16-18	21/64	#F
8	8.25	6.75	3/8-16	25/64	5/16°
10	10.25	8.5	7/16-14	29/64	#T
12	12.25	10.25	1/2-13	33/64	27/64°
16	16.25	14	5/8-11	41/64	17/32°

Harken Deck Specs | Traveler | Mainsheet | Genoa Lead Car | Boom Vangs | Outhauls Systems | Cunninghams | Spinnaker | Spinnaker Pole Handling | Mastbase & Cabin Top | Backstay Adjusters | Mainsail Reefing | Self-Tracking Jibs /Staysails | Metric Conversions /Drilling Guide | Rigging Breaking Strengths | Loading Formulas | Ball Bearings | Maintenance