High-Tensile Bolt with Nut M10x1 - Part Number: 18030-1035

The Bolt with Nut Fastening Set (part number 18030-1035, property class 10.9, metric extra-fine pitch M10 × 1, total underhead length L = 35 mm, thread length G = 20 mm, unthreaded shoulder 15 mm, standard requirement 2 bolts per blade) is a precision high-tensile structural fastener assembly engineered for soil cultivation machinery. Designed to withstand substantial shear forces, tensile loads, and persistent rotational vibrations across walk-behind cultivators, small rotary tillers, and inter-row weeding equipment.

Key Features & Benefits

• High-Tensile Property Class 10.9: Quenched and tempered from alloy steel, delivering a nominal ultimate tensile strength of 1000 N/mm² and yield point of 900 N/mm² to prevent bolt elongation, shear deformation, and fatigue fractures during rocky soil impact.
• Metric Extra-Fine Thread Pitch (M10 × 1): The 1 mm extra-fine thread profile provides superior self-locking performance against persistent rotation vibration compared to standard coarse threads, ensuring consistent preload retention and clamping force.
• Precision 15 mm Unthreaded Shoulder: Keeps the critical shear boundary between the tine shank and rotor flange completely on the solid, unthreaded shank body, preventing notch stress concentrations on the thread and eliminating hole elongation.
• Complete Kit with Matched High-Strength Nut: Includes a dedicated structural nut suited for property class 10.9 torque specifications, optimized for standard dual-bolt tine installations (typically 2 sets per blade).

Technical Specifications

Typical Application Scopes

Installation Technical Note: As a property class 10.9 structural fastener with M10x1 extra-fine pitch, tighten using a calibrated torque wrench (recommended dry torque: approximately 70 – 80 Nm, unless otherwise indicated by the implement OEM). Re-check hardware torque after the initial hour of field operation.