VEDALI HARDWARE CO., LTD
VEDALI HARDWARE CO., LTD Professional Hardware Supplier Perfect Engineering Solutions
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DIN 125 Plastic Spacer Washers 20.5 X 10 X 2 mm White Nylon Flat Washers
Plastic nylon flat washers with holes in centre for assembling with screw or bolt to secure work pieces . these plastic flat washers with perfect features
Simple practicable design
Corrosion resistant material
Fire proof
Good universality
Material
Made from plastic nylon PA 66
Fire Proof Class
UL94V-2 standard
Physical Performance
| Density ( g/cm3) | 1.14 |
| Water absorption % | 3 |
| Shrinkage % | 1～2 |
Mechanical Property
| Tensile strength MPa | 60～80 |
| Elongation at break % | 2.2 |
| Bending strength MPa | 100～120 |
| Modulus of elasticity for bending MPa | 2000 ～3000 |
| Notched Impact Strength(J/m) | 60～100 |
| HR hardness | 118 |
Electrical Performance
| Dielectric constant | 1.63 |
| Arc resistance sec | 130～140 |
| Specific volume resistance Ω·cm | 1.83×1015 |
| dissipation factor | 100～400 |
| Dielectric strength(kV/mm) | 20～30 |
Thermal Performance
| Normal working temperature ℃ | 80～120 |
| Brittle temperature ℃ | -30 |
| Melting temperature ℃ | 252 |
| Pyrogenic decomposition temperature ℃ | 350 |
| Matin heatproof ℃ | 50～60 |
Specification
| d1 | 20.5 |
| d2 | 10 |
| s | 2 |
All sizes are in millimeter
Tolerances
General size tolerances are ±0.1 – 0.2 mm , and according to ISO 2768 for unmarked tolerances .
| d1 | 20.5 | ±0.2 |
| d2 | 10 | ±0.2 |
| s | 2 | ±0.1 |
All sizes are in millimeter
Characteristics
Plastic shoulder screws are made from nylon PA66 which with distinctive characteristics compared other screws .
Wear resistance
Plastic nylon flat washers with higher hardness up to 118 after improved chemical elements .
Good self-lubricant
Self lubricant make plastic nylon flat washers are more resistant wear and a longer service .
High mechanical property
Resistant high temperature
Normally , plastic nylon flat washers can be operated smoothly at temperature 150℃ and thermal deformed temperature is up to 250℃ when parts with glass fiber .
Perfect elongation
Elongation at break is 2.2% according to ISO 527 testing method .
Corrosion resistance
Plastic nylon flat washers can be resistant of the most chemicals on corrosion .
Good insulation
Specific volume resistance is 1.83×1015 and resistance to high breakdown voltage support part to be good insulated .
Resistant impact
60 – 80 KJ/M2 normally .
Resistant fire
Generally , the fire resistance is UL94V-2 and UL64V-0 for special parts .
Resistance to low temperature
Plastic nylon flat washers can be workable at -30℃
Environment friendly
Plastic nylon flat washers meet RoHS or REACH environmental production standard .
Application
Plastic nylon flat washers with small size that are mainly used to electrics , toys , printer , TV , CD , air conditioner and computer etc .
We make different plastic nylon flat washers with various specifications based on standards like ISO ,DIN ,BSW and GB etc , and we are available for non-standard as well . there are additional specifications as following
| Size | d1 | d2 | s |
| 1.6 | 4 | 1.7 | 0.3 |
| 2 | 5 | 2.2 | 0.3 |
| 2.2 | 6 | 2.4 | 0.5 |
| 2.3 | 6 | 2.5 | 0.5 |
| 2.5 | 6 | 2.7 | 0.5 |
| 3 | 7 | 3.2 | 0.5 |
| 4 | 9 | 4.3 | 0.8 |
| 5 | 10 | 5.3 | 1 |
| 6 | 12 | 6.4 | 1.6 |
| 7 | 14 | 7.4 | 1.6 |
| 8 | 16 | 8.4 | 1.6 |
| 10 | 20 | 10.5 | 2 |
| 12 | 24 | 13 | 2.5 |
| 14 | 28 | 15 | 2.5 |
| 16 | 30 | 17 | 3 |
| 18 | 34 | 19 | 3 |
| 20 | 37 | 21 | 3 |
| 22 | 39 | 23 | 3 |
| 24 | 44 | 25 | 4 |
| 27 | 50 | 28 | 4 |
| 30 | 56 | 31 | 4 |
| 33 | 60 | 34 | 5 |
| 36 | 66 | 37 | 5 |
| 42 | 78 | 43 | 7 |
| 48 | 92 | 50 | 8 |
Note : pleas contact us for customized specifications for plastic flat washers .