The YNF02122 Spline Bolt is a precision-engineered fastener designed for construction machinery, hydraulic components, and industrial applications. With a 12mm spline head, M12 thread, and internal hex drive, this bolt ensures strong torque transmission, secure fastening, and excellent durability under continuous operation.

• 12mm spline head with internal hex for efficient torque application

• Thread specification: M12 (standard pitch)

• Available lengths: 34mm / 46mm

• Made from high-strength alloy steel for enhanced durability

• Excellent resistance to vibration, impact, and mechanical stress

• Precision-machined for accurate fit and stable fastening

• Suitable for hydraulic cylinders, machinery joints, and structural components

• Direct OEM-comparable replacement bolt

• Excavators and construction machinery

• Hydraulic cylinder mounting points

• Industrial machinery and mechanical assemblies

• Structural fastening and general machinery repair

• Ideal for maintenance, repair, and replacement purposes

• Thread and size confirmation before shipment

• Technical assistance and installation guidance

• OEM matching and compatibility checks

• Custom fasteners available upon request

• Bolts individually bagged to protect from corrosion and scratches

• Export-standard cartons for safe transportation

• Optional neutral or YNF-branded packaging

• Supports mixed shipments with other parts

Q1: Can this bolt replace the original OEM fastener?
A: Yes. It is produced to OEM-equivalent standards. Provide photos or part numbers for accuracy.

Q2: What material is the bolt made of?
A: High-strength alloy steel engineered for demanding mechanical environments.

Q3: Can I order mixed lengths in one order?
A: Yes, mixed lengths (34mm & 46mm) are supported.