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 | Caterpillar D3K |
| Size | 5/8" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D4K |
| Size | 5/8" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D5K |
| Size | 5/8" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D6K |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D6N LGP V-PAT |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D6N LGP V-PAT Foldable |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D6R LGP Series III Straight Blade |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Komatsu D61PX-23 PAT |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D6R LGP Straight Blade |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut Ulrich |
|---|---|
| Machine | Ulrich 4 |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D6T LGP Straight Blade |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut Ulrich |
|---|---|
| Machine | Ulrich 1 |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D6T LGP V-PAT |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D6T XL VPAT |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Caterpillar D6XE Straight Blade |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi EX550-3LC |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX470LCH-3 |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Komatsu D61PX-15 PAT |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX480 |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Komatsu D61EX-24 PAT |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Komatsu D61EXI-23 PAT |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX470-5 |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX450LCH-3 |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Daewoo Solar 400LC |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Daewoo Solar 420LC V |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Daewoo Solar 450 |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Hitachi ZX470LC-5 |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Daewoo Solar 450LC V |
| Size | M24 |
| Manufacturer | Astrak |
| Part Type | Hex Nut |
|---|---|
| Machine | Komatsu D85PXi-18 |
| Size | 3/4" |
| Manufacturer | Astrak |
| Part Type | Track Nut |
|---|---|
| Machine | Daewoo Solar 500LC V |
| Size | M24 |
| Manufacturer | Astrak |
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