Undercarriage hardware is the fastening layer that holds the running gear together: track bolts and nuts, shoe bolts, master pins and bushings, roller and segment mounting bolts, the high-grade fasteners engineered for the loads tracked machines feed through them. PartsForMachines supplies undercarriage hardware matched by machine and component, alongside the chains, rollers, idlers, sprockets and guides it secures.
Track hardware is not general-purpose fastener territory: shoe bolts and nuts are high-property-class components with specific head and seat forms, sized to the chain and shoe they clamp, and torqued to figures that keep shoes tight under loads that destroy under-specified bolts in hours. The range covers shoe bolt and nut sets, sold in shoe sets and box quantities, master pins and bushings for chain joining and repair, segment and sprocket bolts, and roller mounting hardware, with each product page listing dimensions, grade and the components served. Ask Simon confirms hardware from the machine model and chain specification, or from the part being secured.
The fitting discipline carries the value: shoe bolts torqued to specification and re-checked after first hours, since shoes loosen as faces bed, hardware renewed rather than reused when shoes or segments come off, and master pin work done with the proper tooling. Loose track hardware announces itself as clicking and shifted shoes, and a thrown shoe damages everything it passes.
For hardware confirmation by machine or chain specification, contact the team via WhatsApp 07754288583.
| Part Type | Hex Nut |
|---|---|
| Machine | Komatsu D65WX-16 PAT |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Liebherr L542 |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Volvo EC460C L |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Liebherr PR724 6-Way Blade |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Komatsu D51PX-22 |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX480 |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar 120G |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar 12G |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar 130G |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Volvo EC480D L |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar 140G |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Liebherr PR726 6-Way Blade |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Replaces | Caterpillar 2J-3506 |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Komatsu D51PX-24 |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX470LCH-3 |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX450 |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX450H |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX650LCH |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Caterpillar 345B |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX470-5 |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Caterpillar 345B L |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Caterpillar 345C L |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Caterpillar 345D |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi EX450-5 |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Caterpillar 345D L |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Caterpillar 349E L |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Caterpillar 352 Next Gen |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Track Nut |
|---|---|
| Machine | Caterpillar 352F L |
| Size | M24 |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
| Part Type | Hex Nut |
|---|---|
| Machine | Komatsu D85PX-18 |
| Size | 3/4" |
| Manufacturer | Astrak |
| Pack Quantity | 4 |
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