805140623 screw m12×30 for XCMG RP705 paver spare parts

product parameters

- Part Number: 805140623
- Name: Screw M12×30
- Applicable Model: RP705 medium crawler paver
- Size: M12, Length 30 mm
- Material: High-strength alloy steel
- Process: Thread rolling, quenching & tempering, anti-corrosion treatment
- Matching Parts: Flat washer, spring washer
- Function: Fastening and connecting components

Applicable Scenarios

It fastens hopper assemblies, flip plate weldments, press strips, guard plates and reinforcing ribs on RP705 paver for asphalt paving. Under material scouring and machine vibration, it keeps welded and sheet metal assemblies firmly fixed to avoid abnormal noise and component displacement.

- High strength grade, good vibration and fatigue resistance, not easy to stretch or break
- Rolled threads resist stripping and keep good engagement after repeated disassembly
- Stable anti-corrosion coating suitable for harsh construction sites
- Standard size for quick service with common hand tools
- Consistent with original drawing dimensions for direct replacement

FAQ

Q: Can I just retighten a loose screw caused by vibration?
A: If threads are intact and the screw is not stretched, retighten it to specified torque. Replace it when threads are damaged or the screw is deformed.

Q: Must this screw be fitted with a spring washer?
A: Spring washers are recommended for heavily vibrating feeding positions to improve locking and prevent repeated loosening.

Q: Can a partially rusted screw remain in service?
A: Light surface rust can be cleaned away. Replace it if pitting corrosion reduces its cross-section.

Q: Should we tighten high-strength screws as hard as possible?
A: No. Tighten to the specified torque. Excessive force may strip threads or break the screw.

Q: Why do multiple screws at one mounting point keep loosening?
A: Check for deformed plates and worn holes. Replace all screws and repair the base plate if necessary.