3-Prong Heavy Duty Extension Clamp, Single Adjustment
3-Prong Heavy Duty Extension Clamp, Single Adjustment These extension clamps are built with durable, electroplated zinc alloy and feature dual prong adjustments for versatility. They are suitable for use in environments up to 80°C. Small Clamp: Includes a 4" stainless steel extension rod. The prongs open to approximately 1.75" with a recommended maximum grip size of about 1.5". Double-keyed spring adjustment screws allow for secure positioning. Prongs are coated with non-slip PVC sleeves and come with fiberglass sleeves. Overall length is 6.75". Medium Clamp: Features a 5" stainless steel extension rod. The prongs open to roughly 2.75" with a maximum recommended grip size of about 2.5". Equipped with double-keyed spring adjustment screws, the prongs have non-slip PVC covers and fiberglass sleeves. Overall length is 9". Large Clamp: Also with a 5" stainless steel extension rod, this model offers prongs that open up to approximately 4" with a recommended maximum grip size of about 3.25". Prongs are covered with non-slip PVC sleeves, with an overall length of 10.75". These heavy-duty 3-prong extension clamps are built from durable, nickel-plated zinc to ensure long-lasting reliability. Available in both single wing-nut and dual thumbscrew configurations, they offer a wide grip capacity and precise, gradual adjustment for maximum holding control. Designed for versatility, the integrated extension rods easily connect to standard laboratory support stands (requires a separate connector). Each clamp comes equipped with removable, non-slip vinyl sleeves for everyday use, as well as interchangeable fiberglass sleeves rated for high-temperature applications above 100°C. Key Features Rugged Construction: Made from premium, nickel-plated zinc for enhanced durability. Versatile Sizing: Available in small, medium, and large sizes to accommodate various setups. Precise Control: Three-prong design features gradual adjustment for a secure, customizable grip. Flexible Configurations: Choose between single-adjust wing-nut or dual-adjust thumbscrew models. Dual-Sleeve Protection: Includes non-slip vinyl sleeves for standard grip, plus heat-resistant fiberglass sleeves for environments exceeding 100°C. Note: An additional holder/connector is required to secure the clamp's extension rod to a support stand. SKU Max Grip Size (mm) Prong Width (mm) Arm Length (mm) Arm Dia. (mm) Overall Length (mm) Quantity per Pack S1381-S 23 10 102 8 160 1 S1381-M 69 16 127 11 218 1 S1381-L 102 28 127 11 254 1 Why Buy From Lab Alley Competitive pricing and well-stocked US-based inventory. Fast 1-2 business days shipping, including hazmat transport. Exceptional customer service and chemical technical support. Delivery on budget, on time, every time.