This nut weight chart in kg, mm, pdf provides engineering professionals with precise fastener specifications for optimal performance and cost control. Our comprehensive database delivers accurate measurements across all standard sizes for seamless b2b portal procurement and project execution.
Essential Nut Weight Chart in KG and MM Specifications
Complete Hex Nut Weight Chart
Standard Metric Hex Nuts (Carbon Steel)
Size (MM) | Thread Pitch | Weight (g/piece) | Weight (KG/1000 pcs) | Width Across Flats | Height | Diagonal | Material Density |
M3 x 0.5 | 0.5 | 0.18 | 0.18 | 5.5mm | 2.4mm | 6.35mm | 7.85 g/cm³ |
M4 x 0.7 | 0.7 | 0.45 | 0.45 | 7mm | 3.2mm | 8.08mm | 7.85 g/cm³ |
M5 x 0.8 | 0.8 | 0.89 | 0.89 | 8mm | 4mm | 9.24mm | 7.85 g/cm³ |
M6 x 1.0 | 1.0 | 1.52 | 1.52 | 10mm | 5mm | 11.55mm | 7.85 g/cm³ |
M8 x 1.25 | 1.25 | 3.45 | 3.45 | 13mm | 6.5mm | 15.01mm | 7.85 g/cm³ |
M10 x 1.5 | 1.5 | 6.78 | 6.78 | 17mm | 8mm | 19.63mm | 7.85 g/cm³ |
M12 x 1.75 | 1.75 | 11.89 | 11.89 | 19mm | 10mm | 21.93mm | 7.85 g/cm³ |
M14 x 2.0 | 2.0 | 18.34 | 18.34 | 22mm | 11mm | 25.40mm | 7.85 g/cm³ |
M16 x 2.0 | 2.0 | 26.77 | 26.77 | 24mm | 13mm | 27.71mm | 7.85 g/cm³ |
M18 x 2.5 | 2.5 | 37.45 | 37.45 | 27mm | 15mm | 31.18mm | 7.85 g/cm³ |
M20 x 2.5 | 2.5 | 49.89 | 49.89 | 30mm | 16mm | 34.64mm | 7.85 g/cm³ |
M22 x 2.5 | 2.5 | 65.23 | 65.23 | 32mm | 18mm | 36.95mm | 7.85 g/cm³ |
M24 x 3.0 | 3.0 | 82.67 | 82.67 | 36mm | 19mm | 41.57mm | 7.85 g/cm³ |
M27 x 3.0 | 3.0 | 112.45 | 112.45 | 41mm | 22mm | 47.34mm | 7.85 g/cm³ |
M30 x 3.5 | 3.5 | 145.78 | 145.78 | 46mm | 24mm | 53.11mm | 7.85 g/cm³ |
Lock Nut Weight Specifications (All Materials)
Size (MM) | Carbon Steel (g) | Stainless A2 (g) | Stainless A4 (g) | Brass (g) | Nylon Insert Weight | Prevailing Torque |
M3 | 0.23 | 0.18 | 0.18 | 0.19 | +0.02g | 0.5-1.2 Nm |
M4 | 0.56 | 0.45 | 0.45 | 0.48 | +0.03g | 0.8-1.8 Nm |
M5 | 1.12 | 0.89 | 0.89 | 0.94 | +0.04g | 1.2-2.5 Nm |
M6 | 1.89 | 1.52 | 1.52 | 1.59 | +0.05g | 1.8-3.5 Nm |
M8 | 4.23 | 3.45 | 3.45 | 3.67 | +0.08g | 3.2-6.8 Nm |
M10 | 8.34 | 6.78 | 6.78 | 7.12 | +0.12g | 5.5-12 Nm |
M12 | 14.56 | 11.89 | 11.89 | 12.45 | +0.18g | 8.5-18 Nm |
M14 | 22.45 | 18.34 | 18.34 | 19.23 | +0.25g | 12-25 Nm |
M16 | 32.78 | 26.77 | 26.77 | 28.12 | +0.35g | 18-35 Nm |
M20 | 61.23 | 49.89 | 49.89 | 52.45 | +0.55g | 28-58 Nm |
Wing Nut and Special Nut Weights
Type | Size Range | Weight Formula | Material Options | Typical Weight (M10) |
Wing Nuts | M3-M20 | Base weight × 2.3 | Steel, Stainless, Brass | 15.6g |
Cap Nuts | M4-M24 | Base weight × 1.8 | Steel, Stainless | 12.2g |
Castle Nuts | M6-M30 | Base weight × 1.4 | Steel, Stainless | 9.5g |
Coupling Nuts | M5-M20 | Base weight × 2.8 | Steel, Stainless | 19.0g |
Thumb Nuts | M6-M16 | Base weight × 3.2 | Steel, Plastic, Stainless | 21.7g |
Material Grade Weight Variations
Stainless Steel Density Factors
Grade | Density (g/cm³) | Weight Multiplier | Corrosion Rating |
304 (A2) | 8.00 | 1.02x | Moderate |
316 (A4) | 8.03 | 1.03x | High |
410 | 7.75 | 0.99x | Low |
904L | 8.10 | 1.03x | Superior |