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
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 .
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