8.8 Grade 45# steel coach screws Spike with yellow zinc coating
8.8 Grade 45# steel coach screws Spike with yellow zinc coating
ZHONGYUE can supply a range of rail sleeper screw spikes manufactured to international standards according to BS, ASTM and DIN, among others. ZHONGYUE has extensive experience in the rail industry and a high level of expertise in this specialized field. ZHONGYUE can manufacture any quantity, big or small, and offers a range of finishes including hot dipped galvanized, black, sherardized or self color for the budget conscious.
Rail sleeper screw spikes are used to fasten sole plates and ribbed base plates to wooden sleepers. In rail construction with the concrete sleepers, the rail sleeper screw is used in combination with a plastic dowel pressed in the concrete sleeper, indirect or direct fastenings of rails on concrete and wooden sleepers. Characteristically, the sleeper screw thread may only be produced in a hotforming operation. The different shapes of the head correspond to the pass form of the respective spanner used for fastening and loosening of the rail sleeper screws.
The screw spike costs more to manufacture than the dog spike or dog nail, but has the advantage of greater fixing power; approximately twice that of a dog spike, and can be used in combination with spring washers.
Material
| Material | ||||
| Grade | 4.6 | 5.6 | 8.8 | 10.9 |
| Material | Q235 | 35# | 45# | 40Cr |
| Mechanical properties | Tensile strength: ≥400Mpa | Tensile strength:≥500Mpa | Tensile strength:≥800Mpa | Tensile strength:≥1000Mpa |
| Yield strength:≥240Mpa | Yield strength:≥300Mpa | Yield strength:≥640Mpa | Yield strength:≥900Mpa | |
| Elongation:≥22% | Elongation:≥20% | Elongation:≥12% | Elongation:≥9% | |
| Cold bending: 90 degree without crack | ||||
| Surface | plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing | |||
Note ( 8.8 as a sample)
the first 8: tensile strength of material 45# is 800MPa;
the second 0.8: the yield ratio is 0.8;
the yield strength of material 45# is 800MPa x 0.8 = 640 MPa.
Process
- Raw material
- Wiredrawing
- Cutting
- Head forming
- Heat treatment
- Surface treatment
- Final inspection
- Packing
- Shippment.
Surface Treatment
- plain (oiled)
- color paint
- oxide Black (most choice)
- galavazing
- DHG
Inspection machine
- Brinell Hardness Tester
- Carbon and Sulfur Analyzer
- Rockwell Hardness Machine
- Automatic Impact Testing Machine
- Metallographic Microscope
- Automatic High-speed Analyzer
- Fatigue Testing Machine
- Metallographic Specimen Polishing Machine
- Metallographic Specimen Pointing Machine
Package
1. 25kg per double layer woven bag+ free fumigation wooden pallet
36bags/pallet,
24pallets/container
2. Keg
3. in according with your request
Our product range:
Zhongyue's products ranges:
- Rail Fastening
- Rail Sleeper Screw
- Rail Spike
- Railway Bolt
- Elastic Rail Clip
- Rail Shoulder
- Rail Anchor
- Rail Tie Plate
- Rail Clip
- Railway Washer
- Rail Nylon Insulator
- Rail Pad
- Rail Plastic Sleeve
- Rail Fish Plate
- Brake Block
- Rail Nul
- Rail Fastening System
- Crane rail
Eric Li
Screw spike/Sleeper screw, Coach screw/ Drive screw/Dog spike/ Track spike/ Railway spike
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.