Duct G Clamp – Detailed Description A Duct G Clamp is a sturdy mechanical fastener used to hold, align, or support sheet metal ducting and fittings during HVAC installations and maintenance. Shaped like the letter “G”, this clamp features a threaded screw mechanism that provides adjustable, secure clamping pressure without damaging the surface of the ducts. These clamps are commonly used for temporarily holding duct sections together during sealing, riveting, or screwing operations, especially in rectangular or spiral ductwork systems. Their robust steel construction and high-pressure threads make them ideal for construction environments, workshop use, and on-site HVAC fabrication. Easy to use and highly reliable, Duct G Clamps help maintain proper alignment and structural stability while reducing vibration during fastening. Applications HVAC duct alignment and joining Sheet metal fabrication and assembly Holding duct components during installation Temporary support during welding or sealing Plumbing, electrical conduit, and steelwork positioning Mechanical repair or workshop use Features ✔️ Heavy-duty steel body for industrial strength ✔️ Threaded screw for adjustable pressure ✔️ Non-slip grip for safe and secure clamping ✔️ Corrosion-resistant finish for long life ✔️ Suitable for various duct sizes and thicknesses ✔️ Quick-release design on some models ✔️ Reusable and ideal for multiple tasks Specifications Table Property Details Material Mild Steel / Carbon Steel Coating Zinc-Plated or Powder-Coated Clamp Type G-Shaped Manual Clamp Opening Capacity Typically 1″ to 6″ (varies by model) Thread Type Heavy-Duty Acme Thread Application HVAC Duct Support and Fabrication Operating Method Manual Screw-Tightening Corrosion Resistance Yes Frequently Asked Questions 1. Can G Clamps be used for permanent duct connections?No, G Clamps are primarily for temporary holding during installation. Permanent connections should be secured with screws, rivets, or sealant. 2. Are these clamps compatible with both round and rectangular ducts?Yes, G Clamps can be used on both types, provided the opening size and shape match the duct surface being clamped.
