An oval or square head specialty made fastener used to hold liners or protective ware plates. 

Liner bolts are used in mines, quarries and metal processing. Their primary function is to hold mill liners or ware plates in place. These liner and bolts are used to protect equipment against abrasion and over time will need to be replaced. 

Common Grades: Gr2, Gr5, Gr8, A449, A534 DB 

Lengths: Depends on design (can be from 4″ to 48″ in length) 

Stock: Limited stock, some emergency blanks are kept in common head styles and diameters 
Common Uses: Mine processing plants (bar and ball mills), chute liners, metal scrap shredders, rock crushers