Precision Fasteners & Custom CNC Components
Dowel Pins, Keys, Retaining Rings, Screws

Square Head Lock Pin
Square Head Lock Pins feature a square-shaped head and an integrated spring wire lock, allowing for quick and secure installation. The square head provides anti-slip handling and better torque control during assembly or removal. Commonly used in agricultural equipment, trailer connections, scaffolding systems, and industrial machinery.
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Product Features
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Quick-lock mechanism with spring wire ring—tool-free installation
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Reusable design with stable spring tension and secure retention
Material & Finish
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Material: Carbon steel
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Finish: Zinc-plated for corrosion resistance
Applications
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Anti-loosening pin for trailer hitch systems
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Quick-release components in agricultural and horticultural machinery
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Axle locking pins for construction equipment
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Safety lock systems for marine gear and container fixtures
Customization & Notes
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Compatible with through-hole or blind-hole structures
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Low-volume orders supported
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OEM cross-reference and model matching available