White Nylon Hexagon Socket Head Plastic Allen Key Screw M3 Standard
DIN 912 Fastener
White plastic cup head screw with hexagon socket head , straight
knurled head for easy to be operated by hand , flat point and full
machine threads to under head .
Plastic socket cup head screws are made of nylon material PA66 that
are capable of corrosion resistance and good insulation .
Material
Hexagon socket cup head screws are made from plastic nylon with
property class PA 66.
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 |
| Dssipation 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
| Thread diameter | d | M3 |
| Thread length | L | 8 |
| Head height | K | 5.5 |
| Head diameter | D | 3 |
| Socket depth | Standard | 1.75 |
| Socket width | S | 2.5 |
Note :
1 , All sizes are in millimeter
2 , " b " is for partial threads .
Tolerances
General size tolerances are ±0.1 – 0.2 mm , and according to ISO
2768 for unmarked tolerances .
| Thread diameter | M3 |
| Thread length | ±0.2 |
| Head height | ±0.1 |
| Head diameter | ±0.1 |
| Socket depth | ±0.1 |
| Socket width | ±0.1 |
All sizes are in millimeter
Main Characteristics
Plastic hex socket cup head screws are made from nylon PA66 which
with distinctive characteristics compared other screws .
Wear resistance
Plastic hex socket cup head screw has a higher hardness 118 after
improved chemical elements .
Good self-lubricant
Self lubricant make plastic hex socket cup head screw are more resistant wear and a longer service .
High mechanical property
Resistant high temperature
Normally , plastic nylon hex socket cup head screw 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 hex socket cup head screw 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 hex socket cup head screw can be workable at -30℃
Environment friendly
Plastic hex socket cup head screw meet RoHS or REACH environmental production standard .
Application
Plastic nylon hexagon socket cup head screw with small size that are mainly used to electrics , toys , printer
, TV , CD , air conditioner and computer etc .
Packing
| Size | material | PCS/box |
| M3X8 | PA66 | 1000 |
We make different plastic screws with various specifications based
on standards like ISO ,DIN ,BSW and GB etc , and we are available
for non-standard as well .
