These are used generally in the fabrication of removable and re-usable insulated blankets to keep them safe and secure. Widely used in construction projects in general and in HVAC in particular for proper insulation fixing to improve energy efficiency and heat/cooling loss (insulation). 50mm – 150mm in length generally, round and square shapes. Available in Aluminum, SS and GI versions. Self-stick (Self-adhesive) insulation pins are also available.