- Column buckling and compression member design
- Formulas for column buckling calculations
- Column buckling calculations for a solid round bar
- I Beam buckling calculations
- Simply supported beam calculator
- Simply supported beam with concentrated load at any point
- Simply supported beam with two concentrated loads
- Simply supported beam with distributed load
- Simply supported beam with two distributed loads
- Simply supported beam with a moment
- Simply supported beam with two moments
- Cantilever beam stress and deflection analysis for multiple point/distributed loads and moments
- Cantilever beam with concentrated load at any point
- Cantilever beam with bending moment
- Cantilever beam with distributed load
- Fixed beam stress and deflection analysis for multiple point/distributed loads and moments
- Fixed beam with point load at any point
- Fixed beam with a moment
- Fixed beam with distributed load
- Simply supported beam deflection calculation example

Contact calculations of sphere in circular race
Example of contact stresses in a steel ball bearing
Formulas for Hertzian contact stress calculations
Hertzian contact stress calculations

- Second moment of area calculator
- Cross sectional area calculator
- Section modulus calculator
- I-Beam sectional properties calculator
- Steel wide flange I Beam sizes (ASTM)
- American standard beam (S shape) sizes
- Aluminum I beam sizes (Aluminum Association)
- Tee section sectional properties calculator
- C channel sectional properties calculator
- Equilateral triangle area, height and moment of inertia calculator
- Isosceles triangle area and section properties calculator
- American standard steel channel (C shape) sizes
- Metric U profile sizes
- Steel angle sizes
- Steel angle with equal legs section properties
- Aluminum channel sizes (Aluminum Association)
- Round hollow tube sectional properties calculator
- Round solid bar sectional properties calculator
- Rectangular hollow section sectional properties calculator
- Metric rectangular hollow section dimensions and properties per EN 10210-2
- Equal angle section properties calculator
- Unequal angle section properties calculator
- Square HSS sizes and section properties
- Square hollow section properties calculator
- Metric square hollow section dimensions and properties per EN 10210-2
- Rectangular steel tubing sizes and properties
- Round HSS sizes
- Rectangular solid bar sectional properties calculator
- British universal steel beams
- Steel angle sizes (metric)
- Metric steel unequal angle section properties
- Metric steel equal angle section properties

- Machine Screws
- Machine Screws General Data
- Button head socket cap screw dimensions
- Metric hexagon socket button head screw dimensions
- Socket head cap screw dimensions
- Hex socket dimensions
- Spline socket dimensions
- Metric socket head cap screw dimensions
- Low head socket cap screw dimensions
- Flat head socket cap screw dimensions
- Metric socket set screw dimensions
- Metric slotted set screw dimensions
- Hex head bolt - heavy hex head bolt dimensions
- Hex - heavy hex head cap screw dimensions
- Flat head wood screw dimensions
- Oval head wood screw dimensions
- Pan head wood screw dimensions
- Wood screw dimensions
- Bolt grades, strength and markings
- Machine screw nut dimensions
- Hex nut - jam nut - heavy hex nut dimensions
- Hex flange nut sizes dimensions table
- Hex coupling nut sizes dimensions table
- Hex slotted nut sizes dimensions table
- Nut grades, identification markings and strength (Metric)
- Metric hex nut dimensions
- Hex nut dimensions (Metric fine pitch thread)
- Metric hex jam nut dimensions (coarse pitch thread)
- Metric hex jam nut dimensions (fine pitch thread)
- Metric hex jam nylon lock nut dimensions
- Metric prevailing torque values of lock nuts
- Metric nylon insert locknut dimensions
- Metric metal insert locknut dimensions
- Metric hex flange nut dimensions - Coarse thread
- Metric hex flange nut dimensions - Fine thread
- Metric hex flange lock nut with nylon insert dimensions - Coarse and Fine thread
- Slotted nut dimensions
- Hex thick nut dimensions
- Acorn nut dimensions
- Flat washer dimensions
- Metric flat washer dimensions
- Fender washer dimensions
- Split lock washer dimensions
- Tooth lock washer dimensions
- Forged eye bolt dimensions
- Forged eye bolt capacity and strength
- Clevis pin sizes
- Cotter pins dimensions (Inch)
- Dowel pins dimensions (Inch)
- Hole sizes for dowel pins (Inch)
- Metric clevis pins dimensions
- Metric split pins dimensions
- External circlips for shafts (Metric)
- Internal circlips for bores (Metric)
- Small solid rivets dimensions (7/16 Inch nominal diameter and smaller)

Anthropometry
Human factors and ergonomics
Ergonomics
A simple ergonomics case study - human factors & ergonomics
Human Factors Simulation Software

Depth values for shaft keyseats - hub keyways
Fit tolerances for parallel and taper keys
Gib head dimensions for taper keys
Key size versus shaft diameter
Set screws for use over keys
Parallel and taper key dimensions and tolerances
Woodruff key sizes and dimensions
Woodruff keyeat dimensions

Limits, fits and tolerances calculator (ISO)
ANSI limits and fits calculator
Preferred fits and tolerances charts (ISO)
Linear dimensions tolerances charts
Preferred tolerances and fits charts (ANSI)
Interference (press & shrink) fit calculator
Formulas for press fit / shrink fit calculations
Precision measuring tools for shaft and hole measurements

Mass moment of inertia of a hollow shaft calculator
Mass moment of inertia of a cylinder calculator
Mass moment of inertia of a hollow sphere calculator
Mass moment of inertia of a sphere calculator
Mass moment of inertia of a rectangle shaped thin plate calculator
Mass moment of inertia of a thin rod

Material properties of aluminum 6061
Material properties of aluminum 7075
Density of materials
Linear thermal expansion coefficient values of metals
Modulus of elasticity values of metals
Posisson's ratio values of metals
Specific heat values of metals

Critical working frequency of compression springs
Compression spring design (Dimensional or rate based)
Compression spring calculator for fatigue loads
Compression spring design example
Compression spring calculator (Load based design)
Compression springs terms and definitions
Extension spring design calculator
Extension spring calculator for fatigue loads
Extension spring calculator for static loads
Extension spring design example

Cantilever beam natural frequency calculator
Fixed beam natural frequency calculator
Simply supported beam natural frequency calculator
Single degree of freedom vibration calculator
Sinusoidal (Harmonic) motion calculations
Natural frequency of a vibrating spring
String vibration calculator
Torsional vibration natural frequency of a shaft calculator
Vibration isolation and control systems

Acceleration calculator
Circular motion calculator
Density calculator
Dot product calculator
Elastic otential energy calculator
Free fall calculator
Hooke's law calculator
Newton's second law calculator
Inclined plane with static and kinetic friction calculator
Kinetic energy calculator
Projectile motion calculator
Simple harmonic motion calculator
Simple pendulum calculator
Tension calculator of two ropes
2D Vector addition subtraction calculator with graphs
Vector addition calculator
Vector cross product calculator
Vector magnitude and angle calculator
Work calculator

Metric circular hollow section dimensions and properties per EN 10210-2
Round steel tube sizes and dimensions
Schedule 40 steel pipe thickness
Schedule 80 steel pipe thickness
Schedule 80 steel pipe dimensions
Dimensions and properties of pipes (Std, x-Strong, xx-Strong)
Steel pipe sizes

- UN thread calculator
- Standard series for Unified inch screw threads
- Dimensions for #0000, #000 and #00 threads
- Tap drill size calculator
- Roll form tap drill calculator
- Counterbore hole dimensions calculator
- Counterbore dimensions calculator for metric socket head cap screws
- Clearance hole calculator
- NPT thread chart tap drill size
- Helicoil tap sizes
- Bolt torque calculator
- Bolt torque factors and bolt tension measurements
- Metric thread dimensions calculator
- Metric external thread dimensions chart
- Metric thread chart
- Metric trapezoidal thread calculator
- Trapezoidal thread chart
- Metric self tapping screw thread dimensions
- Metric thread pitch diameter chart
- Bolt grades, strength and markings
- Metric bolt grades and strength
- Stainless steel bolt grades
- Metric bolt torque calculator
- Metric tap drill chart
- Metric clearance hole calculator
- ACME thread calculator
- Stub ACME thread calculator
- Lead screw calculator
- Screw, nut and collar friction coefficients for lead screws
- Bolt screw friction coefficient table
- Buttress thread calculator
- Rough calculation of metric bolt sizes
- Bolt sizing example for pressure vessel cap
- British standard pipe parallel (BSPP) thread chart calculator
- British standard pipe taper (BSPT) thread sizes and dimensions
- NPT Pipe thread calculator
- NPT thread chart tap drill size
- ASME standards for screw threads
- ISO standards for screw threads

Mohr's circle for 3D stress analysis
Hooke's law for general stress - strain calculations
Modulus of rigidity
Plane strain and principal strains
Plane strain and transformations
Plane stress calculation with strain rosette results
Strain gauge rosette calculation example
Principal stress and maximum shear stress calculator
Plane stress and transformations with Mohr's Circle
Strain calculation with strain rosette measurement
Shear stress (single and double shear)
Thin walled pressure vessel stress calculations
Thin walled pressure vessel stress calculation example
Theories of failure for ductile materials.aspx

A central circular hole in a finite plate
A central circular hole in an infinite plate
An eccentric circular hole in a finite-width plate
An elliptical hole in a finite-width plate
A rectangular hole in an infinite plate
Two equal circular holes in an infinite plate
Shoulder fillet in a stepped shaft
A large circumferential groove in a circular shaft
U-shaped groove in a shaft
V-shaped groove in a shaft
A transverse circular hole in a round bar
Opposite shoulder fillets in a bar
A closely fitting round pin joint in an finite-width plate
Stress concentration formulas

Hollow structural section (HSS) design for strength
I beam design for strength
Linear thermal expansion
Stress strain calculator
Thermal stress in a bar
Thermal stress in a uniform plate
Rectangular beam design for strength
Stresses in rotating rings (Annular disks)
Torsion of solid and hollow shafts
Torsion in solid rectangular sections
Torsion in solid square sections
Calculation example of torsion of a solid shaft
Timber beam design for strength example

Allen (hex) key and hex bit sizes
Hex key sizes chart
Metric hex socket key sizes chart
Spline key and bit sizes
Drill bits - Jobbers length twist drills
Drill bits - Straight shank taper length twist drills
Drill bits - Screw machine length twist drills
Drill bits - Taper shank twist drills

Depth values for shaft keyseats - hub keyways
Fit tolerances for parallel and taper keys
Gib head dimensions for taper keys
Key size versus shaft diameter
Set screws for use over keys
Parallel and taper key dimensions and tolerances
Woodruff key sizes and dimensions
Woodruff keyeat dimensions

Class 25 cast iron flanges dimensions chart
Class 125 cast iron flanges dimensions chart
Class 150 flanges dimensions chart
Class 125 cast iron flanged fittings dimensions chart
Class 250 cast iron flanges dimensions chart
Cast iron flanged pipe fittings working pressures temperatures
Nonmetallic gasket dimensions chart for Class 25 cast iron flanges
Nonmetallic gasket dimensions chart for Class 125 cast iron flanges
Nonmetallic gasket dimensions chart for Class 150 flanges
Nonmetallic gasket dimensions chart for Class 250 cast iron flanges
Nonmetallic gasket dimensions chart for Class 300,400,600,900 flanges
RTJ Type R metallic gasket dimensions chart
RTJ Type RX metallic gasket dimensions chart
RTJ Type BX metallic gasket dimensions chart

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