Ceramic Nuts & Bolts: The pitch diameter of external (male) threads will not exceed the maximum allowable according to the standard. The minimum allowable pitch diameter of external threads may be below that of the standard. Conversely, for internal (female) threads the maximum allowable pitch diameter may be above that of the standard. Due to shrink factor variations in processing, stack-up tolerance cannot be controlled on the pitch. It is recommended not to engage more than 5 to 10 threads on any male fastener.
| 订货号 | 包装规格 |
| 433-770-93 | 10 Piece |
| 430-269-37 | 25 Piece |
产品参数
| Head Style[头型] | Hexagonal |
| Pitch[螺距] | 0.7 |
| Quantity[数量] | 10 Piece - 25 Piece |
| Size[尺寸] | M4 x 40mm |
| Standard[标准] | ANSI B18.6.7M-1985 |
| Mechanical Properties(机械性能) |
| Hardness - Knoop ( kgf mm⁻² ) | 2100 |
| Hardness - Vickers ( kgf mm⁻² ) | 1500 - 1650 |
| Shear strength ( MPa ) | 330 |
| Tensile modulus ( GPa ) | 300.00 - 400.00 |
| Tensile strength ( MPa ) | 260.00 - 300.00 |
| Physical Properties(物理性质) |
| Apparent porosity ( % ) | 0.00 |
| Density ( g cm⁻³ ) | 3.900 |
| Chemical Resistance(耐化学性) |
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alkalis | Good |
| Halogens | Good |
| Metals | Good |
| Pultrusion(挤拉成型) |
| Compressive strength ( MPa ) | 2200 -2600 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 8.000 @20-1000℃ |
| Melting point ( C ) | 2100.00 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 850.0 - 900.0 @25℃ |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 26.00 - 35.00 @20℃ |
| Upper continuous use temperature ( C ) | 1700 |
| Electrical Properties(电气特性) |
| Dielectric constant | 9.0 - 10.1 |
| Dielectric strength ( kV mm⁻¹ ) | 10.0 - 35.0 |
| Volume resistivity ( Ohmcm ) | >10¹⁴@25℃ |
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