Feature: Made of good quality spring steel and carbon steel, zinc plated to resist rust and corrosion Ideal for farm, lawn and garden, trailer hitch receivers, and other applications to secure attachments and PTO accessories It is convenient and easy to use ,secure your coupler latches, jack legs, pintle hooks ,gear ,trailer loads etc Specifications: Pins diameter: 6mm/0.24inch Pins length : 60mm/2.36inch Coil inner length :51mm/1.98inch Coil diameter:2.2mm/0.09inch Material: carbon steel Finished: Zinc Plated Package includes: 5Pcs x Linch Pin with Ring