Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

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Fasteners

Bolts, nuts and threaded rods - torque, tension and loads.

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Bolt Stretching and Tensile Stress

Tensile stress and Hooke's Law.

Bolt Torque Calculator

Calculate required bolt torque.

Drill Bits - Conversion Chart

Convert between drill bit dimensions - gauge numbers, inches and mm.

Fasteners - Type Chart

Wood screws, machine screws, sheet metal screws, self drilling SMS and more.

Improvised Torque Wrench

Improvise a torque wrench with a luggage scale.

Metric Bolt Head and Wrench Size

ANSI/SO, DIN and JIS bolts.

Metric Bolts - Minimum Ultimate Tensile and Proof Loads

Minimum ultimate tensile and proof loads for metric bolts with coarse or fine threads.

Metric Bolts - Tightening Torques

Recommended thightening torque metric bolts.

Metric Nuts - Proof Loads

Proof loads of metric nuts - coarse and fine threads.

Metric Steel Bolts - Grades and Property Classes

Metric steel bolts, screws and studs - proof and tensile strength.

Metric Threads - Clearance Holes and Tapping Drill Sizes

Recommended clearance holes and drill tap sizes.

Nails and Spikes - Metric Dimensions

Nails and spikes - commonly used metric sizes.

Nails and Spikes - US Standard Dimensions

US common wire standard nail and spikes sizes and dimensions - Imperial Units.

Nails and Spikes - Withdrawal Force

Allowable withdrawal load for nail and spikes.

Reduced Torque with Lubricated Bolts

Lubrication effect on bolt tension and torque.

Screws - Metric vs. Inches

Metric versus Imperial equivalent screw dimensions.

Steel Bolts - ASTM Grades

ASTM steel bolts - proof and tensile strength.

Steel Bolts - SAE Grades

SAE steel bolts - grades ranging grade 1 to 8.2 - proof and tensile strength.

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T-Slots and T-Nuts - Metric Sizes

Standard metric T-slots and T-nuts.

Threaded Bolts - Stress Area

Threaded bolts tensile stress area.

Threaded Rods - Loads in Imperial Units

Weight rating of threaded hanger rods.

Threaded Rods - Proof Loads in Metric Units

Proof load capacities of metric threaded steel rods.

UNC and UNF - Unified Inch Screw Threads

ANSI/ASME B1.1 Unified National Thread - UNC Coarse series and UNF Fine series.

US and Metric Fasteners - Thread Sizes

Printable fastener chart.

US Bolts - Head and Wrench Sizes

Hex Bolt, Lag Bolt, Square Bolt and Heavy Hex Bolt.

US Bolts - Tensile Strength and Proof Loads

Tensile strength and proof loads SAE bolts.

US Bolts - Tightening Torques

Recommended bolt torques.

US Hex Bolts - Inches

ANSI/ASME B18.2.1 Dimensions of Hex Bolts - Imperial units.

US Hex Bolts - Metric

ANSI/ASME B18.2.3M Dimensions of Hex Bolts - Metric units.

US Machine Screws - Dimensions

Machine screw diameters.

US Wood Screws - Nominal Sizes

Wood screws - nominal sizes vs. diameters.

US Wood Screws - Pilot Holes

Hard wood and soft wood pilot holes, shank clearance holes and countersink diameters.

Whitworth Bolt Torques

Torque specifications Whitworth bolts.

Wood Screws - Withdrawal Force

Allowable withdrawal load force.

Wrench Spanners - Inches vs. mm

Convert between US Inches and metric mm wrench and spanner sizes.

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Topics

Unit Converters

Temperature

oC
oF


Load Calculator!

Length

m
km
in
ft
yards
miles
naut miles


Load Calculator!

Area

m2
km2
in2
ft2
miles2
acres


Load Calculator!

Volume

m3
liters
in3
ft3
us gal


Load Calculator!

Weight

kgf
N
lbf


Load Calculator!

Velocity

m/s
km/h
ft/min
ft/s
mph
knots


Load Calculator!

Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O


Load Calculator!

Flow

m3/s
m3/h
US gpm
cfm


Load Calculator!

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