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Attaching End Mounting Thread Size
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Attaching End Mounting Thread Type
Base Mounting Thread Size
Base Mounting Hole Thread Type
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Bend-and-Stay Positioning Arms
Stronger and with greater load capacities than gooseneck-style positioning arms, these arms keep their shape even when moving or when exposed to vibration. They’re often used in robotics and conveyor applications when frequent repositioning isn’t required.
All accessories include the necessary hardware for attaching them to arms.
Clamp-on bases have two arm attachment locations. Place arms straight or at a right angle from the clamping screw. Clamp-on bases with a rubber V-block can be mounted to rounded surfaces such as pipe and railings.
Attach up to five arms to your base with multi-arm adapters.
Spring clamps with three attaching end mounting holes can be mounted parallel or perpendicular to your positioning arm. Spring clamps with a 4 1/2" reach clamp further into a workpiece than other spring clamps.
Three-finger clamps have bent fingers to hold workpieces that are hard to grip, such as beakers, flashlights, and webcams. A rotating position lock lets you rotate these clamps on your positioning arm. Secure clamps in place with the included locknut.
Ball-and-socket adapters and ball-and-socket connectors allow 360° rotation and up to 90° tilt. A locking knob keeps them in place.
Parallel brackets grip the ends of flat items.
Threaded studs convert the threaded hole on your positioning arm.
Thread adapters convert the thread size and type on your positioning arm.
Secure items to attaching-end mounting pads with glue, hook and loop, screws, or other fasteners.
Arms
Positioning Arm
Base | Attaching End | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Projection | Dia. | Max. Load Cap., lbs. | Material | Color | Mount Type | Mounting Thread Size  | Mounting Hole Thread Type | Mounting Fasteners Included | Mount Type | Mounting Thread Size | Mounting Thread Type | Mounting Fasteners Included | Each | |
| 6" | 5/8" | 20 | Vinyl-Coated Copper | Black | Threaded Hole | 3/8"-24 | UNF | No | Threaded Hole | 3/8"-24 | UNF | No | 00000000 | 000000 |
| 9" | 5/8" | 7 | Vinyl-Coated Copper | Black | Threaded Hole | 3/8"-24 | UNF | No | Threaded Hole | 3/8"-24 | UNF | No | 00000000 | 00000 |
| 12" | 5/8" | 5 | Vinyl-Coated Copper | Black | Threaded Hole | 3/8"-24 | UNF | No | Threaded Hole | 3/8"-24 | UNF | No | 00000000 | 00000 |
| 18" | 5/8" | 3 | Vinyl-Coated Copper | Black | Threaded Hole | 3/8"-24 | UNF | No | Threaded Hole | 3/8"-24 | UNF | No | 00000000 | 00000 |
| 24" | 5/8" | 2.5 | Vinyl-Coated Copper | Black | Threaded Hole | 3/8"-24 | UNF | No | Threaded Hole | 3/8"-24 | UNF | No | 00000000 | 00000 |
| 30" | 5/8" | 2 | Vinyl-Coated Copper | Black | Threaded Hole | 3/8"-24 | UNF | No | Threaded Hole | 3/8"-24 | UNF | No | 00000000 | 00000 |
| 36" | 5/8" | 0.5 | Vinyl-Coated Copper | Black | Threaded Hole | 3/8"-24 | UNF | No | Threaded Hole | 3/8"-24 | UNF | No | 00000000 | 00000 |
Screw-On Bases
Screw On Base
Arm | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg. | Thick. | Max. Load Cap., lbs. | Material | Color | Surface Mounting Fasteners Included | Mount Type | Mounting Fasteners Included | Each | |
| 3" | 3" | 1/4" | 20 | Powder-Coated Steel | Black | Yes | Screw On | Yes | 00000000 | 000000 |
Screw-On Right-Angle Bases
Right-Angle Base
Arm | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg. | Thick. | Max. Load Cap., lbs. | Material | Color | Surface Mounting Fasteners Included | Mount Type | Mounting Fasteners Included | Each | |
| 3" | 3" | 2" | 20 | Powder-Coated Steel | Black | Yes | Screw On | Yes | 00000000 | 000000 |
Clamp-On Bases
Clamp On Base
For Max. Mounting Surface | Arm | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg. | Thick. | Dia. | Max. Load Cap., lbs. | Material | Color | Mount Type | Mounting Fasteners Included | Features | Includes | Each | |
| 1 1/4" | 5 1/2" | 1 5/8" | __ | 20 | Powder-Coated Steel | Black | Screw On | Yes | Padded Base Clamp | __ | 00000000 | 000000 |
| 1 7/8" | 8 1/4" | 2 5/8" | 2" | 20 | Powder-Coated Steel | Black | Screw On | Yes | Padded Base Clamp, Ratchet Handle | Rubber V-Block | 00000000 | 00000 |
Magnetic Bases
Magnetic Base
Arm | |||||||
|---|---|---|---|---|---|---|---|
| Dia. | Thick. | Max. Pull, lbs. | Case Material | Mount Type | Mounting Fasteners Included | Each | |
| 4 7/8" | 1/2" | 200 | Nickel-Plated Steel | Screw On | Yes | 00000000 | 000000 |
Weighted Bases
Weighted Base
Arm | |||||||
|---|---|---|---|---|---|---|---|
| Dia. | Max. Load Cap., lbs. | Material | Color | Mount Type | Mounting Fasteners Included | Each | |
| 9" | 20 | Powder-Coated Steel | Black | Screw On | Yes | 00000000 | 000000 |
Multi-Arm Adapters
Multi-Arm Adapter
Base | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg. | Thick. | Max. Load Cap., lbs. | Material | Color | Mount Type | Mounting Thread Size | Mounting Hole Thread Type | Includes | Each | |
| 1 1/4" | 1 1/4" | 1 1/4" | 5 | Anodized Aluminum | Black | Threaded Hole, Threaded Stud | 3/8"-24 | UNF | Six 3/8"-24 Threaded Studs | 00000000 | 000000 |
Spring Clamps
Spring Clamp
Arm Attaching End | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rotation Range of Motion | Max. Opening | Reach | Jaw Wd. | Lg. | Max. Load Cap., lbs. | Material | Color | Mount Type | Mounting Fasteners Included | Mounting Thread Size | Mounting Thread Type | Number of Mounting Holes | Features | Each | |
| 360° | 0.31" | 0.59" | 0.13" | 4 1/2" | 1 | Nickel-Plated Steel | __ | Threaded Stud | __ | 3/8"-24 | UNF | __ | Locknut | 00000000 | 000000 |
| __ | 2" | 2" | 1" | 6 1/4" | 10 | Chrome-Plated Steel | __ | Screw On | Yes | __ | __ | 1 | Vinyl Grips | 00000000 | 00000 |
| __ | 3" | 3 3/4" | 6" | 8" | 10 | Plastic | Black | Screw On | Yes | __ | __ | 3 | __ | 00000000 | 00000 |
| __ | 3" | 4 1/2" | 3/8" | 8 1/2" | 10 | Plastic | Black | Screw On | Yes | __ | __ | 3 | __ | 00000000 | 00000 |
Three-Finger Clamps
Three-Finger Clamp
Arm Attaching End | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rotation Range of Motion | Max. Opening | Reach | Lg. | Max. Load Cap., lbs. | Material | Color | Mount Type | Mounting Thread Size | Mounting Thread Type | Features | Each | |
| 360° | 3 5/8" | 2 1/2" | 6 3/4" | 5 | Powder-Coated Aluminum | Gray | Threaded Stud | 3/8"-24 | UNF | Locknut, Vinyl-Coated Fingers | 00000000 | 000000 |
Ball-and-Socket Adapters
Ball-and-Socket Adapter
Attaching End | Arm Attaching End | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Rotation Range of Motion | Tilt Range of Motion | Mount Type | Mounting Thread Size | Mounting Thread Type | Max. Load Cap., lbs. | Body Material | Color | Mount Type | Mounting Thread Size | Mounting Thread Type | Features | Each | |
| 2 1/2" | 360° | 90° | Threaded Stud | 1/4"-20 | UNC | 6 | Anodized Aluminum | Black | Threaded Stud | 3/8"-24 | UNF | Locking Knob, Rubber-Padded Camera Seat | 00000000 | 000000 |
Ball-and-Socket Connectors
Ball-and-Socket Connector
Attaching End | Arm Attaching End | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Rotation Range of Motion | Tilt Range of Motion | Mount Type | Mounting Fasteners Included | Mounting Thread Size | Mounting Thread Type | Max. Load Cap., lbs. | Material | Color | Mount Type | Mounting Thread Size | Mounting Thread Type | Features | Each | |
| 3 7/8" | 360° | 90° | Threaded Hole | Yes | 3/8"-24 | UNF | 6 | Anodized Aluminum | Black | Threaded Stud | 3/8"-24 | UNF | Locking Knob | 00000000 | 000000 |
Parallel Brackets
Parallel Bracket
Arm Attaching End | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Device Ht. | For Min. Device Wd. | Max. Load Cap., lbs. | Material | Color | Mount Type | Mounting Fasteners Included | Features | Each | |
| 5 1/2"-11 1/2" | 2" | 2 | Plastic | Black | Screw On | Yes | Adjustable Arms | 00000000 | 000000 |
Threaded Studs
Threaded Stud
Attaching End | ||||||
|---|---|---|---|---|---|---|
| Length | Material | Mount Type | Mounting Thread Size | Mounting Thread Type | Each | |
| 1" | 303 Stainless Steel | Threaded Stud | 3/8"-24 | UNF | 00000000 | 00000 |
Thread Adapters
Adapter with
Threaded
Hole
Threaded
Hole
Adapter with
Threaded
Stud
Threaded
Stud
Attaching End | Arm Attaching End | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Mounting Thread Size | Mounting Thread Pitch, mm | Mounting Thread Type | Mounting Fasteners Included | Material | Mount Type | Mounting Thread Size | Mounting Thread Type | Each | |
Threaded Hole | ||||||||||
| 1 3/4" | 1/4"-20 | __ | UNC | Yes | 303 Stainless Steel | Threaded Stud | 3/8"-24 | UNF | 00000000 | 000000 |
| 1 3/4" | 8-32 | __ | UNC | Yes | 303 Stainless Steel | Threaded Stud | 3/8"-24 | UNF | 00000000 | 00000 |
| 1 3/4" | M8 | 1.25 | Metric | Yes | 303 Stainless Steel | Threaded Stud | 3/8"-24 | UNF | 00000000 | 00000 |
Threaded Stud | ||||||||||
| 1 5/16" | 5/8"-27 | __ | UNS | __ | 303 Stainless Steel | Threaded Stud | 3/8"-24 | UNF | 00000000 | 0000 |
Right-Angle Thread Adapters
Right-Angle Thread Adapter
Attaching End | Arm Attaching End | |||||||
|---|---|---|---|---|---|---|---|---|
| Mount Type | Mounting Fasteners Included | Lg. | Material | Mount Type | Mounting Thread Size | Mounting Thread Type | Each | |
| Screw On | Yes | 2 1/2" | 303 Stainless Steel | Threaded Stud | 3/8"-24 | UNF | 00000000 | 000000 |
Attaching-End Mounting Pads
Any-Which-Way Positioning Arms
Bend these arms to hold small equipment such as lights and microphones in almost any position.
For technical drawings and 3-D models, click on a part number.
Threaded Hole/Threaded Stud Bases
End with Threaded Stud
Use threaded stud and threadlocker to convert a threaded hole into a threaded stud.
| Max. Projection | Attaching End Mount. Thread Size | Base Mount. Thread Size | Max. Load Capacity, lbs. | Material | Color | Includes | Each | |
Threaded Hole/Threaded Stud Attaching End | ||||||||
|---|---|---|---|---|---|---|---|---|
| 6" | 1/4"-20 | 1/4"-20 | 4 | Vinyl-Coated Steel | Black | Two 1/4"-20 Threaded Studs, Threadlocker | 00000000 | 000000 |
| 9" | 1/4"-20 | 1/4"-20 | 3.5 | Vinyl-Coated Steel | Black | Two 1/4"-20 Threaded Studs, Threadlocker | 00000000 | 00000 |
| 12" | 1/4"-20 | 1/4"-20 | 3 | Vinyl-Coated Steel | Black | Two 1/4"-20 Threaded Studs, Threadlocker | 00000000 | 00000 |
| 15" | 1/4"-20 | 1/4"-20 | 2.5 | Vinyl-Coated Steel | Black | Two 1/4"-20 Threaded Studs, Threadlocker | 00000000 | 00000 |
| 18" | 1/4"-20 | 1/4"-20 | 2.5 | Vinyl-Coated Steel | Black | Two 1/4"-20 Threaded Studs, Threadlocker | 00000000 | 00000 |
| 24" | 1/4"-20 | 1/4"-20 | 1.5 | Vinyl-Coated Steel | Black | Two 1/4"-20 Threaded Studs, Threadlocker | 00000000 | 00000 |
| 30" | 1/4"-20 | 1/4"-20 | 0.8 | Vinyl-Coated Steel | Black | Two 1/4"-20 Threaded Studs, Threadlocker | 00000000 | 00000 |
| 36" | 1/4"-20 | 1/4"-20 | 0.6 | Vinyl-Coated Steel | Black | Two 1/4"-20 Threaded Studs, Threadlocker | 00000000 | 00000 |
Threaded Stud Bases
With Threaded Hole Attaching End
With Threaded Stud Attaching End
Threaded Hole
Threaded Stud
| Max. Projection | Attaching End Mount. Thread Size | Attaching End Mount. Pipe Size | Base Mount. Thread Size | Base Mount. Pipe Size | Max. Load Capacity, lbs. | Material | Color | Each | |
Threaded Hole Attaching End | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 6" | 5/8"-27 | __ | 5/8"-27 | __ | 3 | Vinyl-Coated Steel | Black | 000000000 | 00000 |
| 13" | 5/8"-27 | __ | 5/8"-27 | __ | 1 | Vinyl-Coated Steel | Black | 000000000 | 00000 |
| 19" | 5/8"-27 | __ | 5/8"-27 | __ | 1 | Vinyl-Coated Steel | Black | 000000000 | 00000 |
Threaded Stud Attaching End | |||||||||
| 9" | __ | 1/8 | __ | 1/8 | 2 | Vinyl-Coated Steel | Black | 000000000 | 0000 |
| 15" | __ | 1/8 | __ | 1/8 | 1 | Vinyl-Coated Steel | Black | 000000000 | 0000 |
| 24" | __ | 1/8 | __ | 1/8 | 1 | Vinyl-Coated Steel | Black | 000000000 | 00000 |
Screw-On Base with Plate Attaching End
Screw-On
Base with
Plate Attaching End
Base with
Plate Attaching End
Attaching End | Base | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Projection | Plate Lg. | Plate Wd. | No. of Mount. Holes | Mount. Hole Dia. | Mount. Fasteners Included | No. of Mount. Holes | Mount. Hole Dia. | Lg. | Wd. | Max. Load Capacity, lbs. | Material | Color | Each | |
| 14" | 2" | 1 7/8" | 8 | 3/16" | No | 3 | 13/64" | 2" | 3" | 5 | Vinyl-Coated Steel | Black | 000000 | 000000 |
Screw-On Bases with Threaded Hole/Threaded Stud Attaching End
Screw-On Base with Threaded
Hole/Threaded
Stud Attaching End
Hole/Threaded
Stud Attaching End
End with Threaded Stud
Use threaded stud and threadlocker to convert a threaded hole into a threaded stud.
Base | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Projection | Attaching End Mount. Thread Size | Mount. Fasteners Included | No. of Mount. Holes | Mount. Hole Dia. | Lg. | Wd. | Max. Load Capacity, lbs. | Material | Color | Includes | Each | |
| 9" | 1/4"-20 | No | 2 | 0.275" | 2" | 1" | 3.5 | Vinyl-Coated Steel | Black | One 1/4"-20 Threaded Stud, Threadlocker | 00000000 | 000000 |
| 9" | 3/8"-16 | Yes | 2 | 0.275" | 2" | 1" | 3 | Vinyl-Coated Steel | Black | One 3/8"-16 Threaded Stud, Threadlocker | 00000000 | 00000 |
| 16" | 1/4"-20 | No | 2 | 0.275" | 2" | 1" | 2.5 | Vinyl-Coated Steel | Black | One 1/4"-20 Threaded Stud, Threadlocker | 00000000 | 00000 |
| 16" | 3/8"-16 | No | 2 | 0.275" | 2" | 1" | 2.5 | Vinyl-Coated Steel | Black | One 3/8"-16 Threaded Stud, Threadlocker | 00000000 | 00000 |
| 24" | 1/4"-20 | No | 2 | 0.275" | 2" | 1" | 1.5 | Vinyl-Coated Steel | Black | One 1/4"-20 Threaded Stud, Threadlocker | 00000000 | 00000 |
| 24" | 3/8"-16 | No | 2 | 0.275" | 2" | 1" | 1.5 | Vinyl-Coated Steel | Black | One 3/8"-16 Threaded Stud, Threadlocker | 00000000 | 00000 |
Clamp-On Bases
Clamp-On Base
End with Threaded Stud
Arms with padded base clamp have plastic pads that protect mounting surfaces from marring.
Where included, use threaded stud and threadlocker to convert a threaded hole into a threaded stud.
Base | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Projection | Attaching End Mount. Thread Size | Lg. | Wd. | For Max. Mount. Surface Thick. | Max. Load Capacity, lbs. | Material | Color | Includes | Features | Each | |
Threaded Hole Attaching End | |||||||||||
| 16" | 3/8"-16 | 2" | 2" | 2" | 2.5 | Vinyl-Coated Steel | Black | __ | Padded Base Clamp | 00000000 | 000000 |
| 24" | 3/8"-16 | 2" | 2" | 2" | 1.5 | Vinyl-Coated Steel | Black | __ | Padded Base Clamp | 00000000 | 00000 |
Threaded Hole/Threaded Stud Attaching End | |||||||||||
| 9" | 1/4"-20 | 2 7/8" | 2" | 2" | 3.5 | Vinyl-Coated Steel | Black | One 1/4"-20 Threaded Stud, Threadlocker | __ | 00000000 | 00000 |
| 9" | 3/8"-16 | 2" | 1 5/8" | 2" | 3 | Vinyl-Coated Steel | Black | One 3/8"-16 Threaded Stud, Threadlocker | Padded Base Clamp | 00000000 | 00000 |
| 16" | 1/4"-20 | 2 7/8" | 2" | 2" | 2.5 | Vinyl-Coated Steel | Black | One 1/4"-20 Threaded Stud, Threadlocker | __ | 00000000 | 00000 |
| 24" | 1/4"-20 | 2 7/8" | 2" | 2" | 1.5 | Vinyl-Coated Steel | Black | One 1/4"-20 Threaded Stud, Threadlocker | __ | 00000000 | 00000 |
Magnetic Bases
Magnetic Base
End with Threaded Stud
Where included, use threaded stud and threadlocker to convert a threaded hole into a threaded stud.
| Max. Projection | Attaching End Mount. Thread Size | Base Dia. | Max. Pull, lbs. | Max. Load Capacity, lbs. | Material | Color | Includes | Each | |
Threaded Hole Attaching End | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 16" | 3/8"-16 | 3" | 100 | 2.5 | Vinyl-Coated Steel | Black | __ | 00000000 | 000000 |
| 25" | 3/8"-16 | 3" | 100 | 1.5 | Vinyl-Coated Steel | Black | __ | 00000000 | 00000 |
Threaded Hole/Threaded Stud Attaching End | |||||||||
| 9" | 1/4"-20 | 3 1/4" | 100 | 3.5 | Vinyl-Coated Steel | Black | One 1/4"-20 Threaded Stud, Threadlocker | 00000000 | 00000 |
| 9" | 3/8"-16 | 3" | 100 | 3 | Vinyl-Coated Steel | Black | One 3/8"-16 Threaded Stud, Threadlocker | 00000000 | 00000 |
| 16" | 1/4"-20 | 3 1/4" | 100 | 2.5 | Vinyl-Coated Steel | Black | One 1/4"-20 Threaded Stud, Threadlocker | 00000000 | 00000 |
| 24" | 1/4"-20 | 3 1/4" | 100 | 1.5 | Vinyl-Coated Steel | Black | One 1/4"-20 Threaded Stud, Threadlocker | 00000000 | 00000 |
Indicator Swivel Clamps
Secure indicators, upright posts, attachments, and holding rods at any angle. For use with both plunger- and lever-style indicators.
For technical drawings and 3-D models, click on a part number.
Style 1
Dia. | ||||
|---|---|---|---|---|
| (A) | (B) | Adjustment Type | Each | |
Steel | ||||
| 1/4" | 1/4" | Knob | 0000000 | 000000 |
| 5/16" | 5/32" | Knob | 0000000 | 00000 |
| 5/16" | 1/4" | Knob | 0000000 | 00000 |
| 5/16" | 5/16" | Knob | 0000000 | 00000 |
| 3/8" | 1/4" | Knob | 0000000 | 00000 |
| 3/8" | 5/16" | Knob | 0000000 | 00000 |
| 3/8" | 3/8" | Knob | 0000000 | 00000 |
| 1/2" | 3/8" | Knob | 0000000 | 00000 |
| 8mm | 8mm | Knob | 0000000 | 00000 |
| 10mm | 8mm | Knob | 0000000 | 00000 |
| 10mm | 10mm | Knob | 0000000 | 00000 |
| 12mm | 10mm | Knob | 0000000 | 00000 |
Stainless Steel | ||||
| 1/4" | 1/4" | Knob | 0000000 | 00000 |
| 3/8" | 1/4" | Knob | 0000000 | 00000 |
| 3/8" | 3/8" | Knob | 0000000 | 00000 |
Style 6
Dia. | ||||
|---|---|---|---|---|
| (A) | (B) | Adjustment Type | Each | |
Steel | ||||
| 3/8" | 3/8" | Wing Nut | 0000000 | 000000 |
| 3/8" | 1/2" | Wing Nut | 0000000 | 00000 |
| 1/2" | 1/2" | Wing Nut | 0000000 | 00000 |
| 1/2" | 5/8" | Wing Nut | 0000000 | 00000 |
| 5/8" | 5/8" | Wing Nut | 0000000 | 00000 |
| 5/8" | 3/4" | Wing Nut | 0000000 | 00000 |
| 3/4" | 3/4" | Wing Nut | 0000000 | 00000 |
| 10mm | 12mm | Wing Nut | 0000000 | 00000 |
| 12mm | 12mm | Wing Nut | 0000000 | 00000 |
| 14mm | 12mm | Wing Nut | 0000000 | 00000 |
Stainless Steel | ||||
| 3/8" | 3/8" | Wing Nut | 0000000 | 00000 |
| 1/2" | 1/2" | Wing Nut | 0000000 | 00000 |
Style 7
Dia. | ||||||
|---|---|---|---|---|---|---|
| (A) | (B) | (C) | Adjustment Type | Number of Dovetail Mounts | Each | |
Stainless Steel | ||||||
| 1/4" | 1/8" | 1/4" | Knob | 1 | 0000000 | 000000 |