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 | Segment Nut |
|---|---|
| Machine | Komatsu D85EXi-18 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D85EX-15 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65EX-16 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D85EX-18 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65WX-18 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65EX-15 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65EX-12 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65WX-17 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65WX-16 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65PXI-18 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65PX-18 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65EX-18 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65PX-16 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65PX-17 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65PX-12 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D85PXi-18 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65EXi-18 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Segment Nut |
|---|---|
| Machine | Komatsu D65PX-15 |
| Size | M22 |
| Manufacturer | Astrak |
| Part Type | Track Bolts |
|---|---|
| Machine | Liebherr R934 Li. M20, 52 link |
| Size | M20 x 64mm |
| Manufacturer | Astrak |
| Part Type | Plough Bolt |
|---|---|
| Machine | Komatsu D85PX-15 |
| Size | 3/4" x 3 1/2" |
| Manufacturer | Astrak |
| Part Type | Plough Bolt |
|---|---|
| Machine | Komatsu D85PX-18 |
| Size | 3/4" x 3 1/2" |
| Manufacturer | Astrak |
| Part Type | Plough Bolt Ulrich |
|---|---|
| Machine | Ulrich 4 |
| Size | 3/4" x 3 1/2" |
| Manufacturer | Astrak |
| Part Type | Plough Bolt |
|---|---|
| Machine | Komatsu D85PXi-18 |
| Size | 3/4" x 3 1/2" |
| Manufacturer | Astrak |
| Part Type | Segment Bolt |
|---|---|
| Machine | Caterpillar D6H XL |
| Size | 5/8" |
| Manufacturer | Astrak |
| Part Type | Segment Bolt |
|---|---|
| Machine | Caterpillar D6H XR |
| Size | 5/8" |
| Manufacturer | Astrak |
| Part Type | Segment Bolt |
|---|---|
| Machine | Caterpillar D6M Fine Grader |
| Size | 5/8" |
| Manufacturer | Astrak |
| Part Type | Segment Bolt |
|---|---|
| Machine | Caterpillar D6M LGP |
| Size | 5/8" |
| Manufacturer | Astrak |
| Part Type | Segment Bolt |
|---|---|
| Machine | Caterpillar D6M XL |
| Size | 5/8" |
| Manufacturer | Astrak |
| Part Type | Segment Bolt |
|---|---|
| Machine | Caterpillar D6N Fine Grader |
| Size | 5/8" |
| Manufacturer | Astrak |
| Part Type | Segment Bolt |
|---|---|
| Machine | Caterpillar D6N LGP |
| Size | 5/8" |
| Manufacturer | Astrak |
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