- 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 stress and deflection analysis for multiple point/distributed loads and moments
- 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 a 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

- 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 section properties calculator
- Isosceles triangle area and section properties calculator
- American standard steel channel (C shape) sizes
- Steel angle with equal legs (L shape) sizes
- Aluminum channel sizes (Aluminum Association)
- Round hollow tube sectional properties calculator
- Round solid bar sectional properties calculator
- Rectangular hollow section sectional properties calculator
- Angle with unequal legs sectional properties calculator
- Square hollow structural section (HSS) dimensions
- Rectangular steel tube sizes and dimensions
- Round steel tube sizes and dimensions
- Rectangular solid bar sectional properties calculator
- Schedule 40 steel pipe sizes and dimensions
- Schedule 80 steel pipe sizes and dimensions
- Dimensions and properties of pipes (Std, x-Strong, xx-Strong)
- British universal steel beams
- Metric steel unequal angles properties and dimensions
- Metric steel equal angles properties and dimensions

- 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 and strengths
- Machine screw nut dimensions
- Hex nut - jam nut - heavy hex nut dimensions
- 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)
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
Free fall calculator
Projectile motion (Horizontal trajectory) calculator
2D Vector addition subtraction calculator with graphs
Vector addition calculator
Vector cross product calculator
Vector magnitude and angle calculator

- Unified inch screw threads and tolerances
- Standard series for Unified inch screw threads
- Dimensions for #0000, #000 and #00 threads
- Tap drill sizes
- Roll tap drill sizes
- Counterbore sizes for socket head cap screws
- Counterbore sizes for metric socket head cap screws
- Clearance holes for bolts, screws and studs (Inch)
- Helicoil insert length selection (Inch)
- Helicoil tapped hole dimensions (Inch)
- Bolt torque calculator
- Bolt torque factors and bolt tension measurements
- ISO metric screw thread sizes and tolerances
- External metric thread dimensions chart (ASME)
- Metric trapezoidal thread dimensions
- Metric self tapping screw thread dimensions
- General purpose metric screw threads table
- Bolt grades and strengths
- Metric bolt grades and strength
- Properties for stainless steel metric bolts and screws
- Metric bolt torque values
- Metric tap drill sizes
- Clearance holes for bolts, screws and studs (Metric)
- General purpose Acme thread dimensions
- Stub Acme screw thread dimensions
- Leadscrew torque calculations for Acme thread
- Friction coefficients in lead screws
- Friction coefficient values in bolted joints
- Buttress Inch Screw Threads Dimensions
- Rough calculation of metric bolt sizes
- Bolt sizing example for pressure vessel cap
- British standard pipe parallel (BSPP) thread dimensions
- British standard pipe taper (BSPT) thread sizes and dimensions
- NPT Pipe Thread Dimensions
- Drill Sizes for NPT Threads
- 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

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
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

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