Fasteners
Bolts, nuts and threaded rods - torque, tension and loads.
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
Typical maximum recommended thightening torques for 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.
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.