Bolt Torque Calculator

Bolt Data
	Size:		Coarse Fine
		Major Diameter:	in
		Thread per Inch:
	Material:
		Proof Strength:	psi

Bridge Resistance

The bridge resistance of the wheatstone bridge within your sensor.
To find your resistance:
Use a multimeter to determine the resistance across the +Signal and -Signal wires. This value is your bridge resistance. Typical Futek sensors have a bridge resistance of 350, 700 or 1000 Ohms.

Length

Length of engagement. The distance that the two THREADED regions engage. The typical minimum recommended value is 1.5 times the major bolt diameter.

Mating Thread Data
	Length:	in Help.
	Material:
		Yield Strength:	psi

Applied Load

Load applied to either the bolt or tapped unit. Use for axial load applications. For standard bolt torques use 0.

K Factor

K Factor is a torque coefficient between bolt and receptacle. It is a function of the materials' frictional characteristics, which are based on surface finish, coatings and so on.

Various K Factors
Typical Steel Bolt	0.20
Zinc-Plated	0.20
Lubricated	0.18
Cadmium-Plated	0.16

Miscellaneous Data
	Applied Load: tensile	lb Help.
	K Factor: advanced users only	Help.

Want to learn more about Strain Gauge Load Cell? Visit the "How a Load Cell Works" page!

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