Check the listing for details. 6 Pcs Square Pipe Fitting Caps, 1" Internal Thread Malleable Iron Pipe Caps. Condition: New. Listed at 20.42 USD. Description: Material: Constructed from high-strength cast iron with a textured black finish, these pipe caps feature thickened pipe walls for enhanced structural strength. The cast iron material delivers good hardness and load-bearing capacity, resisting deformation under regular use, while the surface treatment provides basic corrosion resistance for indoor applications.Functions: This pipe cap is an indispensable accessory for DIY industrial and retro-style projects, perfectly concealing the rough, cut edges of metal pipes on handcrafted furniture frames. With its classic vintage aesthetic, it adds a unique retro industrial charm to your home, apartment, retail store, or cafe, enhancing the overall visual appeal of your custom pipe furniture.