High Hardness Railroad Track Spikes / Rail Hardware ISO898-1

ZhongYue rail hardware screw dog spikes for railway use factory sell directly

Process

1. Raw material
2. Cutting
3. Head forming
4. Heat treatment
5. Surface treatment
6. Final inspection
7. Packing
8. Shippment.

Inspection machine

1. Brinell Hardness Tester
2. Carbon and Sulfur Analyzer
3. Rockwell Hardness Machine
4. Automatic Impact Testing Machine
5. Metallographic Microscope
6. Automatic High-speed Analyzer
7. Fatigue Testing Machine
8. Metallographic Specimen Polishing Machine
9. Metallographic Specimen Pointing Machine

 
1. We produce the rail sleeper screw spikes for the USA with the standard ASTMA66-87, cold bending 90 degree without cracks. Standard strength 65000PSI or high strength 100000psi is available.
Diameter: 3/4", 7/8", 15/16"
Length: 5-1/2", 6", 7", 8", 10"
Grade: 4.6, 5.6, 8.8
Material: Q235, 35#, 45#
Surface Treatment: Plain (oiled), Black painting, Zinc, HDG
 

2. Rail sleeper screw spikes with big disk are mostly used in South America and Africa
A taper of 1mm in the core and thread diameters towards to the point of the screw over the portion shown parallel is allowed, provided the tolerance on the diameter at the upper end is not exceeded. The material for the rail sleeper screw is complying with British standard N 15-1961.
Diameter: 22mm, 23mm
Length: 115mm, 133mm, 178mm
Grade: 4.6, 5.6
Material: Q235, 35#
 

3. Sleeper screw 3V meets with NF F50-006, Grade 4.6 and 5.6. The mechanical properties are in accordance with NF F 50006, tension strength 700MPA (min), elongation 12% (min), and cold bending 30 degree without crack.
Grade: 4.6, 5.6
Material: Q235, 35#
Surface Treatment: Plain (oiled), Black painting, Zinc, HDG
MOQ: 5000PCS

 
4. Screw spike for wooden sleeper (high tension screw spike)
Size: 15/16×6-1/2
Surface Treatment: Plain (waxed), Black painting
MOQ: 5000PCS
Packing: 38PCS in 50LB plastic keg
 

Full size carbon steel screw spikes shall stand being bent cold 45degree around a pin three times, the spike's diameter without crack on the outside of the bent portion.
Material: 45#, heat treatment

5. Coach screw is used for the mining industry in South Africa
Diameter: 18mm
Length: 65mm and 75mm
Material: Q195 and Q235
Surface Treatment: Zinc
Grade: 4.6

6. DHS35 rail sleeper screw spike, supports the use of the SKL14 rail fastening system
Diameter: 24mm
Length: 158mm and 161mm
Grade: 4.6, 5.6, 8.8
Material: Q235, 35#, 45#
Surface Treatment: Plain (oiled), Black painting, Zinc, HDG