Extra High-Tensile Bolt with Locknut M14x1.5 - Part Number: 18030-1440

The Bolt with Locknut Fastening Set (part number 18030-1440, original OEM cross-references F20110032 + F01200089, property class 12.9, metric fine pitch M14 × 1.5, total underhead length L = 40 mm, thread length G = 26 mm, unthreaded shoulder 14 mm, standard requirement 2 bolts per blade) is a heavy-duty structural hardware set engineered for extreme shear forces, high tensile stress, and severe rotational vibration across rotary tillers and soil cultivation implements.

Key Features & Benefits

• Maximum Strength Class 12.9: Quenched and tempered from high-grade alloy steel, delivering a nominal tensile strength of 1200 N/mm² and yield point of 1080 N/mm² to prevent bolt elongation, shear deformation, and brittle fractures in stony soils.
• Metric Fine Thread Pitch (M14 × 1.5): The fine 1.5 mm pitch provides superior self-locking resistance against persistent working vibrations compared to standard coarse threads, ensuring consistent preload retention.
• Precision 14 mm Unthreaded Solid Shank: Keeps the critical shear boundary between the tool body and flange completely on the solid, unthreaded shank, eliminating stress risers on the thread and preventing mounting hole elongation.
• OEM Matched Locknut Set: Supplied complete with designated OEM interchange references (F20110032 + F01200089), optimized for standard dual-bolt tine configurations (typically 2 sets per blade).

Technical Specifications

Typical Application Scopes

Installation Technical Note: As a property class 12.9 structural fastener with M14x1.5 fine pitch, tighten using a calibrated torque wrench (recommended dry torque: approximately 200 – 220 Nm, unless otherwise indicated by the implement OEM). Check hardware torque after the initial hour of field operation.