4140 Oval Head Bolt,42CrMo High Strength Cement Mill Liner Bolts M48x150mm Hardware Bolts

1. Material Grade:4140(42CrMo)

2. Quality Level: 12.9, 10.9, 8.8, 6.8, 4.8 Grade

3. Sizes: M20,M24, M27,M30,M36,M42,M45;

4. Specification:M48 x 150,M48 x 180,M48 x 210,M48 x 330,M48 x 370,M48 x 390,M48 x 600,M48 x 700,

M48 x 900,M48 x 1080

5. Bolt-head Shape: Oval head, Square head,Ellipse head;

6. Special Features:

1. The high strength bolts have been widely used in large ball mills up to dia.12-meter mills.

2. The high strength screws can be reliably used in small,middle and large cement mills,coal mils and mine mills.

3. The high strength bolts have been properly heat-treated to achieve better mechanical properties.

4. The standard bolt units include one rubber ring,concave washer,spring washer and nut.

7. Chemical Composition:

8. Product Details Picture: