VEDALI HARDWARE CO., LTD
VEDALI HARDWARE CO., LTD Professional Hardware Supplier Perfect Engineering Solutions
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White Nylon Plastic Binding Srews for Books M3 Male Female Fastener
Flat head binding post screws are named chicago screw , it is used for books fastening and called book screws as application of it . binding screws are made of plasitc material with colors like black or white or other custom . For the most chicago screws , the head is flat so that easy to fasten papers and slotted head drive for quick operation and phillips or combination of phillips and slot for options .
There are two parts for binding screws , one is female part which with internal threads and another is male part that with outer thread ,the thread specification for both parts are right same and female shaft lengths are normally effective fastening length .
How to operate bindng screws
1 . Drill hole in papers , the hole diameter is bigger slightly than diameter of female shaft .
2 . Check threads for male and female are right or not via screwing male threads to female threads .
3 . Insert Female part throught paper hole and fasten paper in male part via threads .
Features
1 . Perfect insulation
2 . Fire resistance
3 . Light weight
4 . Good conductility
5 . Eco-friendly
6 . Long service
Technical Data
| Male Female | |
| Length | |
| Head diameter | |
| Head height | |
| Fire resistance | |
| Material code | PA66 |
| Color | |
Mechanical Performance
| Tensile strength MPa | 70 |
| Elongation at break % | 40 |
| Bending strength MPa | 90 |
| Modulus of elasticity for tension MPa | 3160 |
| Modulus of elasticity for bending MPa | 2880 |
| Compressive strength MPa | 127 |
| Shearing strength MPa | 67 |
| Notched Impact Strength(J/m) | 76 |
| Fatigue MPa | 35 |
| Hardnee ( HR ) | 94 |
Applications
Nylon binding screws are normally used for holding papers .
Customized service
Generally , standard sizes for binding post screw are M3 , M4 and M5 , we can provide customization for sizes , profile and material etc .
Tips for use
1 . Do not put nylon binding screws under over 120 degree .
2 . Not avaliable for heavy duty .
3 . Do not continue service of binding post screws when material is aged or cracked .
Packing details
Normally , we pack chicago screws in bulk if you do not request , eg , 200 pcs each bag and 10 bags of each exporing carton . we can do per your special requirements as well .
There are more fasteners that we can provide for you .
1 . Various Stainless steel screws
2 . Metal and non-metal stamping parts
3 . Different plastic parts for industry , material covers PA , PE , PVC , PP , PTFE and PVDF etc .
4 . Standoff washers
5 . Customized Bolts and nuts .