VEDALI HARDWARE CO., LTD
VEDALI HARDWARE CO., LTD Professional Hardware Supplier Perfect Engineering Solutions
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M6 Hex Socket Cup Head Plastic Cap Screws Nylon White Fastener DIN 912
Plastic nylon cap screws with hex socket drive cup knurled head , full threads from end to under head
Typical features
Corrosion resistance
Complete insulation
Wide applications
Light weight
Knurled head design
Material
Hex socket cup head cap 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 |
| 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
| Thread diameter | d1 | M5 |
| Thread length | L | 30 |
| Head height | K | 6.2 |
| Head diameter | d2 | 9.7 |
| Socket depth | t | 4.8 |
| Socket width | S | 5.5 |
Note
1 , All sizes are in millimeter
2 , " b " for partial threads .
Tolerances
General size tolerances are ±0.1 – 0.2 mm , and according to ISO 2768 for unmarked tolerances .
| Thread diameter | M6 |
| 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 cap screws are made from nylon PA66 which with distinctive characteristics compared other screws .
Wear resistance
Plastic cap screws has a higher hardness 118 after improved chemical elements .
Good self-lubricant
Self lubricant make plastic shoulder screws are more resistant wear and a longer service .
High mechanical property
Resistant high temperature
Normally , plastic nylon cap screws 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 cap screws 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 cap screws can be workable at -30℃
Environment friendly
Plastic cap screws meet RoHS or REACH environmental production standard .
Application
Plastic cap screws are widely used to various fields that with light load and strict conditions on corrosion resistance and insulation as perfect features .
1 , Car industry
2 , Household appliances
3 , Official equipments
4 , Toy items
5 , Electrics
6 , Aerospace
7 , Sports equipments
8 , Technology and research device
Packing
| Size | material | PCS/box |
| M6X30 | PA66 | 500 |