Reference Charts
		Standard Tap and Drill Sizes
		Size	Thread	Drill Size
		1/4"	20	7
		1/4"	28	3
		5/16"	18	F
		5/16"	24	I
		3/8"	16	5/16"
		3/8"	24	21/64"
		7/16"	14	3/8"
		7/16"	20	25/64"
		1/2"	13	27/64"
		1/2"	20	29/64"
		9/16"	12	31/64"
		9/16"	18	33/64"
		5/8"	11	17/32"
		5/8"	18	37/64"
		3/4"	10	21/32"
		3/4"	16	11/16"
		7/8"	9	49/64"
		7/8"	14	13/16"
		1"	8	7/8"
		Steel Sheet
		Gauge	Thickness	Weight/Sq.Ft
		11	0.012	5.000
		12	0.105	4.370
		13	0.090	3.750
		14	0.075	3.120
		18	0.048	2.000
		20	0.036	1.500
		22	0.030	1.250
		24	0.024	1.000
		26	0.018	0.750
		28	0.015	0.625
		Aluminum Sheet
		Thickness	Weight/Sq.Ft
		0.020	0.260
		0.024	0.310
		0.032	0.460
		0.040	0.540
		0.050	0.680
		0.063	0.880
		0.080	1.125
		0.090	1.300
		0.125	1.800
		Weight per Gallon
		Item	Weight Lbs.
		Water	8.333
		Fuel	6.042
		Oil	7.500
		Dry Bolt Torque
		Coarse Thread Grade 5
		Size	Foot Lbs.
		1/4"	10
		5/16"	19
		3/8"	33
		7/16"	54
		1/2"	78
		9/16"	114
		5/8"	154
		3/4"	257
		Wrench Size Needed
		AN Size	Wrench Size
		-4	9/16"
		-6	11/16"
		-8	7/8"
		-10	1"
		-12	1-1/4"
		-16	1-1/2"
		-20	1-13/16"
		Other Item		Wrench Size
		7/8" Stab Bar		1-5/16"
		1" Jam Nut		1-1/2"
		1/2" Hood Pin		3/4"
		3/4" Trailing Arm		1-1/8"
		5/8" Tie Rod		15/16"
		Round Steel Tubing
		O.D.	Wall	Wt./ Ft.
		1"	0.049	0.498
		1"	0.065	0.649
		1"	0.095	0.918
		1"	0.120	1.128
		1-1/4"	0.049	0.629
		1-1/4"	0.065	0.823
		1-1/4"	0.095	1.172
		1-1/4"	0.120	1.448
		1-1/2"	0.049	0.759
		1-1/2"	0.065	0.996
		1-1/2"	0.095	1.426
		1-1/2"	0.120	1.769
		1-3/4"	0.049	0.890
		1-3/4"	0.065	1.170
		1-3/4"	0.095	1.679
		1-3/4"	0.120	2.089
		Steel Tubing
		O.D.	Wall	Wt./Ft.
		1" x1"	0.065	0.827
		1" x1"	0.083	1.035
		1" x1"	0.120	1.436
		1-1/2"x1-1/2"	0.065	1.268
		1-1/2"x1-1/2"	0.083	1.599
		1-1/2"x1-1/2"	0.095	1.815
		1-1/2"x1-1/2"	0.120	2.252
		1-3/4"x1-3/4"	0.065	1.490
		1-3/4"x1-3/4"	0.083	1.882
		1-3/4"x1-3/4"	0.095	2.168
		1-3/4"x1-3/4"	0.120	2.660
		2" x 2"	0.065	1.710
		2" x 2"	0.083	2.164
		2" x 2"	0.095	2.461
		2" x 2"	0.120	3.050
		2" x 3"	0.065	2.152
		2" x 3"	0.083	2.728
		2" x 3"	0.095	3.544
		2" x 3"	0.120	3.900
		Useful Equivalents
		Length
		Foot	=	30.48	Centimeters
		Inch	=	2.54	Centimeters
		Meter	=	3.281	Feet
		Meter	=	39.37	Inches
		Conversion Factors
		Multiply:		by:	To obtain:
		Acres		43560	Square Feet
		Barrel		5.6146	Cubic feet
		Barrels		42	Gallons
		BTU		0.2928	Watt Hour
		BTU		0.02356	Horsepower
		Centimeters		0.03281	Feet
		Centimeters		0.3937	Inches
		Cubic Feet		7.4805	Gallons
		Cubic Feet		1728	Cubic Inches
		Cubic Yards		27	Cubic Feet
		Feet		30.48	Centimeters
		Feet		0.3048	Meters
		Feet per Second		0.68182	Miles per Hour
		Foot Pounds per second		0.001818	Horsepower
		Gallons		231	Cubic Inches
		Gallons		3.785	Liters
		Horsepower		33000	Foot Pounds per minute
		Horsepower		550	Foot Pounds per second
		Horsepower		0.7457	Kilowatts
		Inches		2.54	Centimeters
		Inches		0.08333	Feet
		Meters		3.281	Feet
		Meters		39.37	Inches
		Meters		1.094	Yards
		Miles		5280	Feet
		Miles		1.609	Kilometers
		Miles per Hour		1.4667	Feet per Second
		Square Miles		640	Acres
		Tons (Net)		2000	Pounds
		Yards		0.9144	Meters
			Useful Formulas
		Temperature Centigrade = 5/9 (Temp F - 32)
		Temperature Fahrenheit = 9/5 (Temp C +32)
		Temperature Absolute C = Temp. C + 273
		Temperature Absolute F = Temp F + 460
		Decimal Equivalents
			1/64"	---------------	0.015625
		1/32"	-----------------	---------------	0.031250
			3/64"	---------------	0.046875
	1/16"	---------------	-----------------	---------------	0.062500
			5/64"	---------------	0.781250
		3/32"	-----------------	---------------	0.093750
			7/64"	---------------	0.109375
	1/8"	---------------	-----------------	---------------	0.125000
			9/64"	---------------	0.140625
		5/32"	-----------------	---------------	0.156250
			11/64"	---------------	0.171875
	3/16"	---------------	-----------------	---------------	0.187500
			13/64"	---------------	0.203125
		7/32"	-----------------	---------------	0.218750
			15/64"	---------------	0.234375
	1/4"	---------------	-----------------	---------------	0.250000
			17/64"	---------------	0.265625
		9/32"	-----------------	---------------	0.281250
			19/64"	---------------	0.296875
	5/16"	---------------	-----------------	---------------	0.312500
			21/64"	---------------	0.328125
		11/32"	-----------------	---------------	0.343750
			23/64"	---------------	0.359375
	3/8"	---------------	-----------------	---------------	0.375000
			25/64"	---------------	0.390625
		13/32"	-----------------	---------------	0.406250
			27/64"	---------------	0.421875
	7/16"	---------------	-----------------	---------------	0.437500
			29/64"	---------------	0.453125
		15/32"	-----------------	---------------	0.468750
			31/64"	---------------	0.484375
	1/2"	---------------	-----------------	---------------	0.500000
			33/64"	---------------	0.515625
		17/32"	-----------------	---------------	0.531250
			35/64"	---------------	0.546875
	9/16"	---------------	-----------------	---------------	0.562500
			37/64"	---------------	0.578125
		19/32"	-----------------	---------------	0.593750
			39/64"	---------------	0.609375
	5/8"	---------------	-----------------	---------------	0.625000
			41/64"	---------------	0.640625
		21/32"	-----------------	---------------	0.656250
			43/64"	---------------	0.671875
	11/16"	---------------	-----------------	---------------	0.687500
			45/64"	---------------	0.703125
		23/32"	-----------------	---------------	0.718750
			47/64"	---------------	0.734375
	3/4"	---------------	-----------------	---------------	0.750000
			49/64"	---------------	0.765625
		25/32"	-----------------	---------------	0.718250
			51/64"	---------------	0.796875
	13/16"	---------------	-----------------	---------------	0.812500
			53/64"	---------------	0.828125
		27/32"	-----------------	---------------	0.843750
			55/64"	---------------	0.859375
	7/8"	---------------	-----------------	---------------	0.875000
			57/64"	---------------	0.890625
		29/32"	-----------------	---------------	0.906250
			59/64"	---------------	0.921875
	15/16"	---------------	-----------------	---------------	0.937500
			61/64"	---------------	0.953125
		31/32"	-----------------	---------------	0.968750
			63/64"	---------------	0.984375
	1"	---------------	-----------------	---------------	1.000000