8.8 Grade Square Head Railway Sleeper Screws are critical components in railway fastening systems, used to securely fix rails onto wooden or concrete sleepers.

The square head screw spikes are made of high-strength Grade 8.8 carbon steel or alloy steel, providing excellent mechanical properties. The square head design prevents slippage during installation, while the coarse-thread body ensures superior grip and pull-out resistance. Compared to traditional hammered spikes, these screw spikes offer stronger bonding with sleepers and longer service life.

| 1 | M8-M64 | Q235,45#,55#,etc | UIC,AREMA,JIS,GB or according to your requests. | |||
| 2 | M16-M22 *145-200 | |||||
| 3 | Ss 1/130 | M22*130 | 0.451 | UIC,AREMA,JIS,GB or according to your requests. | ||
| Ss 1/150 | M22*150 | 0.478 | ||||
| Ss 2/180 | M22*180 | 0.595 | ||||
| Ss 5/150 | M24*150 | 0.545 | ||||
| Ss 6/130 | M26*130 | 0.658 | ||||
| Ss 6/150 | M26*150 | 0.702 | ||||
| Ss 6/170 | M26*170 | 0.385 | ||||
| Ss 7/180 | M24*180 | 0.636 | ||||
| Ss 8/140 | M24*140 | 0.528 | ||||
| Ss 8/150 | M24*150 | 0.548 | ||||
| Ss 8/160 | M24*160 | 0.568 | ||||
| Ss 23/160 | M23*160 | 0.645 | ||||
| Ss 24/165 | M24*165 | 0.59 | ||||
| Ss 25/165 | M25*165 | 0.625 | ||||
Coach screw spikes, DHS35 screw spikes, Ss-series screw spikes (Ss8, Ss25, Ss36, etc.), double-head screw spikes, E-type and SKL elastic clips, rail pads, gauge blocks, fish bolts, and rail joint bars. GNEE RAIL also provides customization and installation technical support.
GNEE.






