T-BOLT BAND CLAMPS Made-to-Order Clampco has manufactured thousands of different clamp styles. Every style reflects a different application requirement. For example, some T-Bolt Clamps are manufactured with permanent latches and heavier gauge stainless steel for tough applications. Others are made with quick release latches for ease of assembly and disassembly. With a wide range of standard latches, hardware, and bands, Clampco can meet the most complicated and demanding clamp requirements. Our catalog will walk you through the process of determining the right clamp for your application. When your description code matches that of a stock number, Clampco can sell right from inventory. When the description code is unique, we will manufacture the part for you. How to Determine your T-Bolt Band Clamp Description Code Clampco’s description code contains 5 segments, each representing a different part of the clamp. CLAMPCO LATCH STYLES T-BOLT LATCH The Clampco T-bolt latch is used for permanent or semipermanent applications and/or safety on pressurized systems. The T-bolt latch is our most economical latch. QUICK RELEASE LATCH Below is a sample description code: The Clampco quick release latch is used for ease of disassembly and is required where the ability to replace bolts is desired. SADDLE QUICK RELEASE LATCH It’s easy to create your made-to-order T-Bolt Band Clamp description code, just follow these 5 easy steps: The saddle quick release latch is also used for ease of disassembly and where the ability to replace bolts is desired. It is not recommended for diameters larger than 10 in. [254 mm] due to trunnion/band interference. 1. Determine Latch Style Code C410 -C-75-450-S 2. Determine Bolt Code C410-C -75-450-S 3. Determine Band Width Code C410-C-75 -450-S 4. Determine Band Diameter Code C410-C-75-450 -S 5. Determine Nut, Knob, or T-Handle Code LIGHT-DUTY OVER CENTER LATCH The light-duty over center latch is used on applications that require frequent assembly or disassembly. No tools are required for opening and closing the clamp after initial installation. This latch style is ideal for light-duty applications on small diameters and requires a 3⁄16 in. diameter T-bolt. (Note: Not recommended for pressurized applications) MEDIUM-DUTY OVER CENTER LATCH The medium-duty over center latch is well suited for heavier applications and on larger diameters. No tools are required for opening and closing the clamp after initial installation. It is available with either a 1⁄4 in. or 5 ⁄16 in. diameter T-bolt. (Note: Not recommended for pressurized applications) HEAVY-DUTY OVER CENTER LATCH The heavy-duty over center latch is well suited for heavy-duty applications and large diameters. It is available with a 3⁄8 in. diameter T-bolt. (Note: Not recommended for pressurized applications)

SPECIFICATIONS 1. DETERMINE LATCH STYLE CODE (Sample Description Code) Stainless steel band material: 301, 302, 304 1⁄4 hard or 1⁄2 hard. UNF thread form may be supplied without prior notice. T-BOLT LATCH ENGLISH (inches) CODE C310 C311 C410 C412 C510 C511 C610 ADJUSTABLE RANGE PLUS MINUS 2.0 6.6 2.0 6.6 TOTAL DIAMETRICAL ADJUSTMENT 8.6 8.6 ADJUSTABLE RANGE PLUS MINUS 7.1 7.1 TOTAL DIAMETRICAL ADJUSTMENT 14.2 C310 & C311: Light-Duty Applications / C410 & C412: Medium-Duty Applications / C510 & C511: Heavy-Duty Applications / C610: Extra Heavy-Duty Applications C320 & C321: Light-Duty Applications...

T-BOLT BAND CLAMPS Made-to-Order 2. DETERMINE BOLT CODE C410-C -75-450-S (Sample Description Code) Bolt Performance and Torque Chart Clampco offers the following bolts as standard options. Other bolt materials and thread sizes are available upon request. Some bolts may be bent for small diameter applications. CODE BOLT DESCRIPTION THREAD SIZE 4037 Alloy Heat Treated to 125,000 - 145,000 psi, Zinc Plated 431, 420 or 410 Stainless Steel Heat Treated to 140,000 to 160,000 psi A286 Stainless Steel, 130,000 psi minimum BOLT MATERIAL 300 Series Stainless Steel Type 420 or 431 Stainless Steel Type A286...

4. DETERMINE BAND DIAMETER CODE C410-C-75- 450 -S (Sample Description Code) The nominal band diameter is based on the outside diameter (O.D.) of the final hose or tube assembly. The last 2 digits of the code are represented as a two place decimal number without the decimal point. Band diameters are available in increments of .0625 in. [1.6 mm]. For Example: 4 1⁄2 in. = 4.50 in. = 450 5 in. = 5.00 in. = 500 6 3⁄8 in. = 6.375 in. = 638 24 9⁄16 in. = 24.562 in. = 2456 When starting with a metric unit, convert millimeters to inches rounded to two decimal places and then drop the decimal point. For...