Fastener Calculator
Calculate fastener requirements, load capacities, and material compatibility with our comprehensive calculator. Select the right screws, bolts, anchors, and nails for any construction or DIY project.
Step 1: Fastener Specifications
4
Standard Fastener Sizes
Wood screws: 3.5-6mm diameter. Lag bolts: 8-16mm diameter. For structural connections, use at least 4 fasteners with proper spacing.
Step 2: Material & Load
100 kg
Fastener Safety Factors
For safety-critical applications, apply a 4:1 safety factor. Fastener spacing should be 4-6× diameter. Allow 2× diameter edge distance.
Fastener Calculation Results
Summary
Fastener Diagram
Fastener Comparison
Safety Factor
4.2:1
4× 8mm lag bolts in hardwood
Shear Capacity
420 kg
Pull-out Strength
580 kg
Fastener Spacing
48 mm
Edge Distance
16 mm
Fastener Installation Diagram
Embedment Depth
42 mm
Minimum Thickness
32 mm
Thread Engagement
85%
Corrosion Risk
Low
Fastener Type Comparison
| Fastener Type | Typical Use | Shear Strength | Tensile Strength |
|---|
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