Thread Compound is recommended for use on tool joints, drill collars, and all other rotary shouldered connections. They may be used in deep or shallow drilling, on hard formations, for directional drilling, or for breaking in new tool joints. API and IADC recommends a compound of from 40% - 60% metallic zinc for use on tool joints and on drill collar connections.FUKKOL C66 Zinc Thread Compound is commonly used for shallow drilling and on tool joints. It is also used on drill pipe as a storage compound. Thread Compound

is the most widely accepted and used compound on the complete drill string. When a single compound