Specifications
| Material | Mild steel |
| Grade | ASTM A307 |
| Standard | ASTM A36 |
| Diameters | 3/8" to 1" |
| Lengths | 1" to 6" |
| Thread | UNC / metric coarse |
| Finish | Plain (black) / Zinc-plated / Hot-dip galvanized |
Description
Liner Bolt — ASTM A307 bolt for structural, machinery and general fastening. Complete with nut and washer on request. Stocked across common diameters and lengths in plain (black) and other finishes.
The liner bolt is a specialised heavy-duty fastener used to secure wear liners inside mills, crushers and material-handling equipment. Liner bolts endure constant impact, abrasion and vibration as they hold protective liner plates against the machine body, so they are made from high-strength material and shaped to seat securely and resist loosening. Replacing worn liner bolts on schedule is critical maintenance in mining and aggregate operations.
Liner bolts are supplied in the diameters, lengths and head styles matched to specific equipment, with nuts and often special washers. Because they are equipment-specific, matching the exact bolt to the machine and liner is essential. See the specifications below for available configurations.
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