Selecting Clamps Using Pipe, Conduit, or Tubing Trade Size
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Railing Clamps
Clamp onto metal tubes such as pipe, scaffolding, and railing to hang lighting fixtures, threaded rod, and equipment. Made of aluminum, all of these clamps are lightweight and have good corrosion resistance.
Clamps with a black anodized finish blend into dark backgrounds and are more corrosion resistant than unfinished clamps.
Style A clamps have grooves on the inside to improve grip. To mount equipment, remove the bolt on the bottom of the hanger, mount the equipment, and reattach the bolt. To hang threaded rod, remove the bolt and replace it with threaded rod.
Style B clamps have a T-handle for attachment and removal. To mount equipment, remove the bolt on the bottom of the hanger, mount the equipment, and reattach the bolt. To hang threaded rod, remove the bolt and replace it with threaded rod.
Style C clamps have wing nuts for making adjustments. Remove the wing nut from the bottom bolt and reattach after mounting equipment.
Style D clamps have a wing nut and a bolt for making adjustments. To mount equipment, remove the bolt on the bottom of the hanger, mount the equipment, and reattach the bolt. To hang threaded rod, remove the bolt and replace it with threaded rod.
For OD | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Inch | Metric, mm | For Pipe Size  | For Thread Size | Bolt Material | Cap., lbs. | Mount Type | Lg. | Wd. | Ht. | Each | |
Aluminum | ||||||||||||
| A | 11/16"-1 5/16" | 17-33 | 3/8, 1/2, 3/4, 1 | 5/16"-18 | Zinc-Plated Steel | 125 | Clamp On | 2 1/2" | 5/8" | 3 7/8" | 00000000 | 000000 |
| A | 11/16"-1 5/16" | 17-33 | 3/8, 1/2, 3/4, 1 | 5/16"-18 | 18-8 Stainless Steel | 125 | Clamp On | 2 1/2" | 5/8" | 3 7/8" | 00000000 | 00000 |
| A | 1 5/16"-2 3/8" | 33-60 | 1, 1 1/4, 1 1/2, 2 | 1/2"-13 | Zinc-Plated Steel | 600 | Clamp On | 3 7/8" | 1" | 6 3/8" | 00000000 | 00000 |
| A | 1 5/16"-2 3/8" | 33-60 | 1, 1 1/4, 1 1/2, 2 | 1/2"-13 | 18-8 Stainless Steel | 600 | Clamp On | 3 7/8" | 1" | 6 3/8" | 00000000 | 00000 |
| B | 1 7/8"-2" | 48-51 | 1 1/2 | 1/2"-13 | Zinc-Plated Steel | 600 | Clamp On | 6" | 1" | 4 3/8" | 00000000 | 00000 |
| B | 1 7/8"-2" | 48-51 | 1 1/2 | 1/2"-13 | Zinc-Plated Steel | 1,100 | Clamp On | 6" | 2" | 4 3/8" | 0000000 | 00000 |
| B | 1 7/8"-2" | 48-51 | 1 1/2 | 1/2"-13 | 18-8 Stainless Steel | 1,100 | Clamp On | 6" | 2" | 4 3/8" | 00000000 | 00000 |
| C | 1 15/16"-2" | 49-51 | 1 1/2 | __ | Steel | 1,650 | Clamp On | 4 1/4" | 2" | 5 3/4" | 0000000 | 00000 |
Black Anodized Aluminum | ||||||||||||
| A | 11/16"-1 5/16" | 17-33 | 3/8, 1/2, 3/4, 1 | 5/16"-18 | Zinc-Plated Steel | 125 | Clamp On | 2 1/2" | 5/8" | 3 7/8" | 00000000 | 00000 |
| A | 11/16"-1 5/16" | 17-33 | 3/8, 1/2, 3/4, 1 | 5/16"-18 | 18-8 Stainless Steel | 125 | Clamp On | 2 1/2" | 5/8" | 3 7/8" | 000000000 | 00000 |
| A | 1 5/16"-2 3/8" | 33-60 | 1, 1 1/4, 1 1/2, 2 | 1/2"-13 | Zinc-Plated Steel | 600 | Clamp On | 3 7/8" | 1" | 6 3/8" | 00000000 | 00000 |
| A | 1 5/16"-2 3/8" | 33-60 | 1, 1 1/4, 1 1/2, 2 | 1/2"-13 | 18-8 Stainless Steel | 600 | Clamp On | 3 7/8" | 1" | 6 3/8" | 00000000 | 00000 |
| B | 1 7/8"-2" | 48-51 | 1 1/2 | 1/2"-13 | Zinc-Plated Steel | 1,100 | Clamp On | 6" | 2" | 4 3/8" | 000000000 | 00000 |
| B | 1 7/8"-2" | 48-51 | 1 1/2 | 1/2"-13 | 18-8 Stainless Steel | 1,100 | Clamp On | 6" | 2" | 4 3/8" | 000000000 | 00000 |
| D | 1 11/16"-1 7/8" | 43-48 | 1 1/4, 1 1/2 | 1/2"-13 | Zinc-Plated Steel | 1,100 | Clamp On | 4 1/4" | 2" | 5 3/4" | 000000000 | 00000 |
Heavy Duty Clamp-On Framing and Fittings
Build workstations, conveyors, and shelving for heavy loads. These clamp-on framing rails and fittings are the thickest and sturdiest in our offering. The fittings slide over the rails in one piece. Tighten their bolts to clamp them in place—no machining or welding required.
Through-hole fittings allow rails to run all the way through.
Adjustable-angle fittings can be positioned at any angle. Tighten the hex head screw to secure. Aluminum fittings resist corrosion in wet environments. 304 stainless steel fittings resist corrosion better than aluminum and plastic fittings. They also resist mild chemicals such as cleaners. Plastic fittings are nonconductive and lightweight. They also have good chemical resistance.
| For Rail OD | Material | No. of Through Holes | Each | |
Tee | ||||
|---|---|---|---|---|
| 1/2" | Aluminum | 1 | 0000000 | 000000 |
| 1/2" | 304 Stainless Steel | 1 | 0000000 | 00000 |
| 3/4" | Aluminum | 1 | 0000000 | 00000 |
| 3/4" | 304 Stainless Steel | 1 | 0000000 | 00000 |
| 1" | Aluminum | 1 | 0000000 | 00000 |
| 1 1/4" | Aluminum | 1 | 0000000 | 00000 |
| 1 1/2" | Aluminum | 1 | 0000000 | 00000 |
| 2" | Aluminum | 1 | 0000000 | 00000 |
| 12mm | Aluminum | 1 | 0000000 | 00000 |
| 12mm | 304 Stainless Steel | 1 | 0000000 | 00000 |
| 16mm | Aluminum | 1 | 0000000 | 00000 |
| 16mm | 304 Stainless Steel | 1 | 0000000 | 00000 |
| 18mm | Black Plastic | 1 | 00000000 | 0000 |
| 18mm | Aluminum | 1 | 0000000 | 00000 |
| 18mm | 304 Stainless Steel | 1 | 0000000 | 00000 |
| 30mm | Black Plastic | 1 | 0000000 | 00000 |
| 30mm | Aluminum | 1 | 0000000 | 00000 |
| 30mm | 304 Stainless Steel | 1 | 0000000 | 000000 |
| 40mm | Aluminum | 1 | 0000000 | 00000 |
Adjustable-Angle Wye | ||||
| 1/2" | Aluminum | 1 | 0000000 | 00000 |
| 3/4" | Aluminum | 1 | 0000000 | 00000 |
| 1" | Aluminum | 1 | 0000000 | 00000 |
| 1 1/4" | Aluminum | 1 | 0000000 | 00000 |
| 1 1/2" | Aluminum | 1 | 0000000 | 00000 |
| 2" | Aluminum | 1 | 0000000 | 00000 |
| 18mm | Black Plastic | 1 | 00000000 | 00000 |
| 18mm | Aluminum | 1 | 00000000 | 00000 |
| 30mm | Black Plastic | 1 | 00000000 | 00000 |
| 30mm | Aluminum | 1 | 00000000 | 00000 |
| 40mm | Aluminum | 1 | 00000000 | 00000 |
Through-hole fittings allow rails to run all the way through.
Aluminum fittings resist corrosion in wet environments.
For Rail | |||||
|---|---|---|---|---|---|
| Wd. | Ht. | Material | No. of Through Holes | Each | |
Tee | |||||
| 40mm | 40mm | Aluminum | 1 | 00000000 | 000000 |
Through-hole fittings allow rails to run all the way through.
Adapters let you connect a round rail to a square rail.
Aluminum fittings resist corrosion in wet environments.
For Square Rail | ||||||
|---|---|---|---|---|---|---|
| For Rail OD | Wd. | Ht. | No. of Through Holes | Material | Each | |
For Round to Square Rail | ||||||
Tee | ||||||
| 60mm | 40mm | 40mm | 1 | Aluminum | 00000000 | 000000 |
Clamp-On Framing and Fittings
Fittings come in two pieces to clasp over rails, making assembly and disassembly quicker than our other framing. Use it to form temporary partitions, modular conveyors, and workstations. To assemble, clamp fittings onto the rail and tighten the included cap screw and nut. For permanent connections and added strength, fittings have a 5/32" hole to drill in an additional screw (not included).
Through-hole fittings allow rails to run all the way through.
Add-on through-hole fittings have a hinge, so you can fit them onto existing rails without disassembling. A quick-release lever makes removal easy.
For Rail OD | ||||||
|---|---|---|---|---|---|---|
| Clamp-On Framing Component Shape | Inch | Metric, mm | Material | Features | Each | |
| Closed Wraparound Tee | 1.08" | 28 | Zinc-Plated Steel | Quick-Release Lever | 0000000 | 00000 |
Scaffold Clamps
Build tube-and-clamp scaffolding and attach supports, such as railings, to frame-style structures. Also known as knuckles. These clamps fit the most common scaffold tube sizes. Made of galvanized steel, they are rust resistant and hold up in outdoor applications.
Rigid clamps create a secure 90° connection between two tubes.
Swivel clamps pivot to connect tubes at any angle.
Note: Clamps meet OSHA and Cal/OSHA dimensional and construction standards. Check local, state, and federal codes, including OSHA, for safe set up and operating practices.
For OD | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Movement | Inch | Metric, mm | No. of Through Holes | Material | Drive Style | Hex Size, mm | Specifications Met | Each | |
| Rigid | 1 5/8"-1 7/8" | 42-48 | 2 | Galvanized Steel | External Hex | 22 | Cal/OSHA Compliant Title 8 Section 1637, Cal/OSHA Compliant Title 8 Section 1646, OSHA Compliant 29 CFR 1926.451 | 00000000 | 000000 |
| Swivel | 1 5/8"-1 7/8" | 42-48 | 2 | Galvanized Steel | External Hex | 22 | Cal/OSHA Compliant Title 8 Section 1637, Cal/OSHA Compliant Title 8 Section 1646, OSHA Compliant 29 CFR 1926.451 | 00000000 | 00000 |