Adjustable Support Screws
When working with large or flexible workpieces that could bow under machining pressure, use these screws as easy-to-install support points. Also known as jack screws or jig screws, they thread into a T-slot nut or threaded hole in the fixture to support or locate the workpiece above your machine table.
Shoulder | Head | ||||||
|---|---|---|---|---|---|---|---|
| Thread Lg. | Overall Lg. | Dia. | Ht. | Dia. | Ht. | Each | |
Steel | |||||||
3/8"-16  | |||||||
| 1 1/4" | 1 7/8" | 1 1/8" | 3/8" | 3/8" | 1/4" | 0000000 | 000000 |
| 1 5/8" | 2 1/4" | 1 1/8" | 3/8" | 3/8" | 1/4" | 0000000 | 00000 |
| 2" | 2 5/8" | 1 1/8" | 3/8" | 3/8" | 1/4" | 0000000 | 00000 |
1/2"-13 | |||||||
| 1 1/4" | 1 7/8" | 1 1/8" | 3/8" | 3/8" | 1/4" | 0000000 | 00000 |
| 1 5/8" | 2 1/4" | 1 1/8" | 3/8" | 3/8" | 1/4" | 0000000 | 00000 |
| 2" | 2 5/8" | 1 1/8" | 3/8" | 3/8" | 1/4" | 0000000 | 00000 |
| 2 1/2" | 3 1/8" | 1 1/8" | 3/8" | 3/8" | 1/4" | 0000000 | 00000 |
5/8"-11 | |||||||
| 1 5/8" | 2 1/4" | 1 3/8" | 3/8" | 3/8" | 1/4" | 0000000 | 00000 |
| 2 1/2" | 3 1/8" | 1 3/8" | 3/8" | 3/8" | 1/4" | 0000000 | 00000 |
Adjustable Side Stops
Adjust the horizontal screw to hold workpieces of varying sizes in precise positions. These stops thread into a hole in your fixture or machinery or into a T-slot nut for use on a machine table.
Swivel tips move in all directions to make maximum contact with angled and uneven workpieces.
Spring-Loaded Work Supports
Slide these low-profile supports under a workpiece to provide support and reduce vibration. The slot in the center of the support allows for positioning at any angle before bolting it down to a machine table or fixture. Turn the handle to extend the spring-loaded plunger and lock it in place. For additional height adjustment, thread a screw or support button (sold separately) into the plunger.
Jack Screws
Lock Washer,
and Flat Washers
Secure computer cables and panels. Zinc yellow-chromate plated and zinc-plated finish provide some corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Thread (A) | Thread (B) | Screws | Screws with Hex Nut, Lock Washer, and Two Flat Washers | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Lg. | Size | Min. Lg. | Lg. | Pkg. Qty. | Pkg. | Pkg. | ||
Zinc Yellow-Chromate Plated 12L14 Steel | |||||||||
3/16" Hex Size | |||||||||
| 4-40 | 3/16" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 000000 | 000000000 | 000000 |
| 4-40 | 1/4" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 5/16" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 3/8" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 7/16" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 1/2" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 0000 | 000000000 | 00000 |
| 4-40 | 9/16" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 0000 | 000000000 | 00000 |
| 4-40 | 5/8" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 0000 | 000000000 | 00000 |
Zinc-Plated 12L14 Steel | |||||||||
3/16" Hex Size | |||||||||
| 4-40 | 1/8" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 3/4" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 7/8" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 1" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 00000 | 000000000 | 00000 |