UNC Bolt Calculator View Only

	B	C	D	F	G	H
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2	About	Version	V1.0
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4	UNC	Thread
5	9/16 - 18 UNF	Size		5	%	(+) Torque Tolerance
6				10	%	(-) Torque Tolerance
7	8	Grade
8				0.06	Min	Coef. of Thread Friction
9	0.5625	in	Diameter	0.2	Max
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11	18	TPI		0.06	Min	Coef. of Bolt Head Friction
12			Stress	0.15	Max
13	120000	psi	Proof
14	130000	psi	Yield	2000	in-lb	Specified Torque
15	150000	psi	Tensile
16				14645.34783	lb	Minimum Preload
17	0.2030	in²	Tensile Area	43537.36627	lb	Maximum Preload
18			Load
19	24,357.7	lb	Proof	1.787419064	Max	Preload/Proof Load Ratio
20	26,387.5	lb	Yield
21	30,447.1	lb	Tensile	1.429935251	Max	Preload/Min Tensile Load
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23				0.138373182	K	(nut factor)
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