LabLok™ 3-Prong Heavy Duty Extension Clamps feature durable nickel-plated zinc construction. Offered in both single wing-nut and dual thumbscrew adjustable configurations, the prongs provide a wide grip capacity and gradual adjustment for grip control.
These LabLok clamps are designed with extension rods that can attach to support stand apparatus. The grip sleeves are non-slip vinyl and come with fiberglass sleeves for temperatures above 100°C. Clamps are available in small, medium, and large sizes.
- Durable nickel-plated zinc construction
- Wide range of grip adjustability
- Three prong has gradual adjustment for grip control
- Vinyl sleeves for non-slip grip and fiberglass sleeves for temperatures above 100°C
- Available in single and dual adjustable configurations
- Available in small, medium, and large sizes
Note: additional connector must be purchased for attaching clamps to support stand apparatus.
WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
LabLok™ 3-Prong Heavy Duty Extension Clamps feature durable nickel-plated zinc construction. Offered in both single wing-nut and dual thumbscrew adjustable configurations, the prongs provide a wide grip capacity and gradual adjustment for grip control.
These LabLok clamps are designed with extension rods that can attach to support stand apparatus. The grip sleeves are non-slip vinyl and come with fiberglass sleeves for temperatures above 100°C. Clamps are available in small, medium, and large sizes.

| Item # | Size | Adjustment Type | (A) Min-Max Grip Size (mm) | (B) Prong Width (mm) | (C) Arm Length (mm) | (D) Arm Diameter (mm) | (E) Overall Length (mm) | Quantity per Pack |
|---|---|---|---|---|---|---|---|---|
| CLHS01 | Small | Single | 0 - 23 | 10 | 102 | 8 | 160 | 1 |
| CLHS02 | Medium | Single | 0 - 69 | 16 | 127 | 11 | 218 | 1 |
| CLHS03 | Large | Single | 0 - 102 | 28 | 127 | 11 | 254 | 1 |
| CLHD01 | Small | Dual | 0 - 45 | 10 | 100 | 8 | 170 | 1 |
| CLHD02 | Medium | Dual | 0 - 69 | 18 | 127 | 11 | 230 | 1 |
| CLHD03 | Large | Dual | 0 - 102 | 28 | 127 | 11 | 266 | 1 |
| CLHD04 | Med- long arm | Dual | 0 - 69 | 18 | 304 | 12 | 405 | 1 |
| CLHD05 | Large- long arm | Dual | 0 - 102 | 28 | 305 | 12 | 445 | 1 |