Screw vs Bolt: The Easiest Way to Tell Them

Screw vs Bolt: The Easiest Way to Tell Them

In a railway track system, fasteners are key components that ensure rail stability and safe operation. Among the various fasteners, screws and bolts are the two most common types. The simplest way to distinguish between a screw and a bolt is by its installation method and whether it is used with a nut.

1. Bolts: Used with a Nut

Bolts typically require a nut for fastening; they secure track components through threaded engagement. For example, a rail bolt firmly connects the rail base plate or fishplate to the sleeper, suitable for applications that require high clamping force and removable fastening.

2. Screws: No Nut Needed

Screws do not require a nut and are directly screwed into wooden sleepers or metal fittings. A typical example is the screw spike, which achieves secure fastening through the threads engaging with the wood, making it ideal for wooden-sleeper tracks or light-load lines.

3. Screw Spike Reference Data

4. The Complete Fastening System

In addition to screws and bolts, the railway fastening system includes components such as rail clips, rail pads, spikes and rail anchors. These fasteners work together to maintain rail stability in longitudinal, lateral and vertical directions while absorbing vibrations and impacts caused by train loads, thereby extending the service life of sleepers and the overall track structure. Confirm the type, grade, standard and surface treatment with the supplier before ordering.

Request Fastener Specifications & Pricing

Screws and bolts differ mainly in thread design, installation method, and how they form a fastening connection. For railway applications, the correct fastener should be selected according to the joint design, load requirements, rail fastening system, and applicable standards. GNEE RAIL supplies railway screws, bolts, and related fastening components for different track applications.