Pipe Flange Aligner Pins
Insert a pair of these nut-and-bolt pins into adjacent flange holes and tighten to align flanges before connecting two pipes. One pin in each pair has a level for vertical alignment. Use a separate level to align the flange horizontally. Also known as two-hole pins.
Pins with a 4 ½” length extension let you increase the length of your pins to align thicker flanges. Use the included couplings to connect the extension to your pins.
Pipe Flange Aligners with Protractor

Line up two pipe flanges and determine pipe angle with the included nut-and-bolt pins, level, and protractor. Flange holes align as you tighten the pins.
For Flange Hole Dia. | Angle Measuring Range | Graduation Marks (Numeric Increments) | For Distance Between Bolt Holes | Each | |
Aluminum | |||||
---|---|---|---|---|---|
3/16"-1 3/4" | 0°-90° | 2.5° (2°) | 2"-5 1/2" | 0000000 | 0000000 |
Pipe Flange Aligner Pins with Horizontal Level

Ensure horizontal alignment of pipe flanges with a level rod that runs between two alignment pins. One pin in each pair has a level for vertical alignment. Insert these nut-and-bolt pins into adjacent flange holes and tighten to align flanges before connecting two pipes.
Magnetic Pipe Flange Aligner Pins

Swiftly and accurately align pipe flange bolt holes without the hassle of threads. These pins have strong magnets that snap together. Insert them into adjacent bolt holes to help make sure flanges are parallel before connecting pipes. Also known as two-hole pins.
Pins for 2 3/4″ thick flanges can be used with extensions (sold separately) to lengthen their reach for flanges up to 3 1/2″ thick.
For technical drawings and 3-D models, click on a part number.
Stepped Pipe Flange Aligner Pins


Each step on these aligner pins matches common bolt holes on pipe flanges, so they're more precise than conical aligner pins and don’t require nuts. Press the pair of pins into mated flanges to make sure the flanges are aligned. Once two sets of holes are aligned, you'll know the rest of the holes are as well. Made of durable chrome-plated steel, they'll hold their shape over time and resist rust.
Magnetic Pipe Flange Aligners with Level


Ensure an even seal around your flange—these tools align and level flanges in a single step. The strong magnets make sure your bolt holes are perfectly inline horizontally and that your flange isn’t tilted. If your flange is made of stainless steel or another nonmagnetic material, secure these aligners using the included threaded cones.
For Flange Hole Dia. | For Max. Ctr-to-Ctr Flange Hole Distance | Level Lg. | Includes | Cone Material | Magnet Material | Container Type | Each | |
Aluminum Body | ||||||||
---|---|---|---|---|---|---|---|---|
1/2"-2" | 9 1/2" | 10 1/2" | Threaded Cones | Steel | Neodymium | Carrying Case | 0000000 | 0000000 |