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About Thumb Screw and Binding Post Materials
More
Slotted Stainless Steel Low-Profile
Knurled-Head Thumb Screws
These 18-8 stainless steel thumb screws are chemical resistant and may be mildly magnetic. They have a thin head for use in low-clearance applications. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Lg. | Dia. | Ht. | Tensile Strength, psi | Hardness | Each | |
18-8 Stainless Steel | ||||||||
4-40 | ||||||||
| 5/16" | Fully Threaded | __ | 5/16" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 00000 |
| 3/8" | Fully Threaded | __ | 5/16" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 3/8" | Partially Threaded | 5/16" | 3/8" | 1/8" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | 5/16" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
6-32 | ||||||||
| 3/8" | Fully Threaded | __ | 5/16" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | 5/16" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
8-32 | ||||||||
| 3/8" | Fully Threaded | __ | 3/8" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | 3/8" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1/2" | Partially Threaded | 3/8" | 3/8" | 1/8" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 5/8" | Fully Threaded | __ | 3/8" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | 3/8" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
10-24 | ||||||||
| 3/4" | Fully Threaded | __ | 3/8" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | 1/2" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1" | Partially Threaded | 13/16" | 3/8" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | 5/8" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/2" | Partially Threaded | 1 1/4" | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | 5/8" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
10-32 | ||||||||
| 3/8" | Fully Threaded | __ | 7/16" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | 7/16" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1/2" | Partially Threaded | 7/16" | 3/8" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 5/8" | Fully Threaded | __ | 7/16" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | 7/16" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | 1/2" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1" | Partially Threaded | 13/16" | 1/2" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | 1/2" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | 5/8" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | 5/8" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
1/4"-20 | ||||||||
| 3/4" | Fully Threaded | __ | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1" | Partially Threaded | 13/16" | 1" | 3/16" | 80,000 | Rockwell B85 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | __ | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 5/8" | Partially Threaded | 1 3/8" | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 2" | Partially Threaded | 1 7/8" | 3/4" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2" | Partially Threaded | 1 7/8" | 1" | 3/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 2 3/8" | 11/16" | 7/32" | 80,000 | Rockwell B83 | 000000000 | 00000 |
5/16"-18 | ||||||||
| 1" | Fully Threaded | __ | 3/4" | 1/4" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | 3/4" | 1/4" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 3/4" | Fully Threaded | __ | 3/4" | 1/4" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 2 1/4" | Fully Threaded | __ | 3/4" | 1/4" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3" | Fully Threaded | __ | 3/4" | 1/4" | 80,000 | Rockwell B83 | 000000000 | 00000 |
3/8"-16 | ||||||||
| 1" | Fully Threaded | __ | 7/8" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | __ | 7/8" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2" | Fully Threaded | __ | 7/8" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | __ | 7/8" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3" | Fully Threaded | __ | 7/8" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
1/2"-13 | ||||||||
| 1 1/2" | Fully Threaded | __ | 1" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2" | Fully Threaded | __ | 1" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | __ | 1" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3" | Fully Threaded | __ | 1" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
Slotted Narrow Knurled-Head Thumb Screws
These thumb screws are slim to fit in tight spaces. Made from 18-8 stainless steel, they're chemical resistant and may be mildly magnetic. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Lg. | Dia. | Ht. | Tensile Strength, psi | Hardness | Each | |
18-8 Stainless Steel | ||||||||
4-40 | ||||||||
| 3/8" | Fully Threaded | __ | 1/4" | 1/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 1/2" | Partially Threaded | 7/16" | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 3/4" | Partially Threaded | 5/8" | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | 3/16" | 3/8" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
4-48 | ||||||||
| 1/2" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
6-32 | ||||||||
| 1/2" | Partially Threaded | 7/16" | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 3/4" | Partially Threaded | 5/8" | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | 3/16" | 3/8" | 80,000 | Rockwell B85 | 000000000 | 0000 |
6-48 | ||||||||
| 1/2" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3/4" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
8-32 | ||||||||
| 1/2" | Fully Threaded | __ | 3/16" | 3/8" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1/2" | Partially Threaded | 7/16" | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | 3/16" | 3/8" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1" | Partially Threaded | 13/16" | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
8-40 | ||||||||
| 1/2" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3/4" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
10-24 | ||||||||
| 1/2" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
10-32 | ||||||||
| 1/2" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | 1/4" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
1/4"-20 | ||||||||
| 1/2" | Fully Threaded | __ | 5/16" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | 5/16" | 1/2" | 80,000 | Rockwell B85 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | 5/16" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 0000 |
1/4"-28 | ||||||||
| 1/2" | Fully Threaded | __ | 5/16" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | 5/16" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | __ | 5/16" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
5/16"-18 | ||||||||
| 1/2" | Fully Threaded | __ | 3/8" | 5/8" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | 3/8" | 5/8" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | 3/8" | 5/8" | 80,000 | Rockwell B83 | 000000000 | 0000 |
Nylon Thumb Screws with Slotted Drive
These nylon thumb screws are chemical resistant, nonconductive, and lightweight. They have a knurled head for slip-resistant controlled adjustment. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Temperature Range, °F | Tensile Strength, psi | Pkg. Qty. | Choose a Color | Pkg. | |
Nylon Plastic | ||||||||
4-40 | ||||||||
| 1/4" | 21/64" | 7/32" | -40° to 185° | 11,000 | 100 | 000000000 | 00000 | |
6-32 | ||||||||
| 1/4" | 11/32" | 1/4" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 1/2" | 11/32" | 1/4" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 3/4" | 11/32" | 1/4" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 1" | 11/32" | 1/4" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
8-32 | ||||||||
| 3/16" | 25/64" | 9/32" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 3/8" | 25/64" | 9/32" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 1/2" | 25/64" | 9/32" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 3/4" | 25/64" | 9/32" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 1" | 25/64" | 9/32" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 1 1/4" | 25/64" | 9/32" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
10-32 | ||||||||
| 1/4" | 13/32" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 3/8" | 13/32" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 1/2" | 13/32" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 3/4" | 13/32" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 1" | 13/32" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
| 1 1/2" | 13/32" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 0000 | |
1/4"-20 | ||||||||
| 1/2" | 31/64" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 00000 | |
| 3/4" | 31/64" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 00000 | |
| 1" | 31/64" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 00000 | |
| 1 1/4" | 31/64" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 00000 | |
| 1 1/2" | 31/64" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 00000 | |
| 1 3/4" | 31/64" | 5/16" | -40° to 185° | 11,000 | 100 | 000000000 | 00000 | |
Thumb-Screw-Head Captive Panel Screws
Install through a hole and thread on a retainer (sold separately) to keep these screws secure—no special tools are required. Use an optional spring (sold separately) to provide even compression against panels. Screws, retainers, and springs are made from chemical-resistant 18-8 stainless steel and may be mildly magnetic. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Screws | Retainers | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Head | Each | Pkg. | Optional Springs | |||||||||||
| Lg. | Thread Lg. | Dia. | Ht. | Specifications Met | 1-4 | 5-Up | Pkg. Qty. | 1-4 | 5-Up | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | ||||||||||||||
4-40 | ||||||||||||||
| 3/8" | 1/8" | 0.25" | 0.25" | ASTM A581, ASTM A582 | 000000000 | 00000 | 00000 | 25 | 000000000 | 000000 | 000000 | 5 | 0000000 | 00000 |
| 1/2" | 1/8" | 0.25" | 0.25" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 5/8" | 1/8" | 0.25" | 0.25" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 3/4" | 1/8" | 0.25" | 0.25" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 7/8" | 1/8" | 0.25" | 0.25" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1" | 1/8" | 0.25" | 0.25" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
6-32 | ||||||||||||||
| 1/2" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 5/8" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 3/4" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 7/8" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
8-32 | ||||||||||||||
| 1/2" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 5/8" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 3/4" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 7/8" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1" | 7/32" | 0.313" | 0.313" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
10-24 | ||||||||||||||
| 1/2" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 5/8" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 3/4" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 7/8" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1 1/8" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1 1/4" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1 3/8" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1 1/2" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
10-32 | ||||||||||||||
| 1/2" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 5/8" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 3/4" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 7/8" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1 1/8" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1 1/4" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1 3/8" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1 1/2" | 1/4" | 0.375" | 0.438" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
1/4"-20 | ||||||||||||||
| 5/8" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 3/4" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 7/8" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 1" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 1 1/4" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 1 1/2" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
1/4"-28 | ||||||||||||||
| 5/8" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 3/4" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 7/8" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 00000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 1" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 1 1/4" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 00000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
| 1 1/2" | 5/16" | 0.5" | 0.563" | ASTM A581, ASTM A582 | 000000000 | 00000 | 00000 | 25 | 000000000 | 00000 | 00000 | 5 | 000000 | 0000 |
M3 × 0.5 mm | ||||||||||||||
| 11mm | 3.2mm | 6.5mm | 6.5mm | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 13mm | 3.2mm | 6.5mm | 6.5mm | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 14.5mm | 3.2mm | 6.5mm | 6.5mm | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 17.5mm | 3.2mm | 6.5mm | 6.5mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 00000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 22mm | 3.2mm | 6.5mm | 6.5mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 00000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
M3.5 × 0.6 mm | ||||||||||||||
| 11mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 0000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 13mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 0000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 14.5mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 0000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 17.5mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 00000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 22mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 00000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
M4 × 0.7 mm | ||||||||||||||
| 11mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 0000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 13mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 0000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 14.5mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 0000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 17.5mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 00000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
| 22mm | 5.5mm | 8mm | 8mm | ASTM A581, ASTM A582 | 000000000 | 00000 | 00000 | 25 | 000000000 | 00000 | 00000 | 3 | 000000000 | 0000 |
Rounded Head Captive Panel Screws
Install through a hole and thread on a retainer (sold separately) to keep these screws secure—no special tools are required. Use an optional spring (sold separately) to provide even compression against panels. Screws, retainers, and optional springs are made from chemical-resistant 18-8 stainless steel and may be mildly magnetic. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Screws | Retainers | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Head | Each | Pkg. | Optional Springs | |||||||||||
| Lg. | Thread Lg. | Dia. | Ht. | Specifications Met | 1-4 | 5-Up | Pkg. Qty. | 1-4 | 5-Up | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | ||||||||||||||
4-40 | ||||||||||||||
| 1/2" | 3/16" | 0.172" | 0.107" | ASTM A581, ASTM A582 | 000000000 | 00000 | 00000 | 25 | 000000000 | 000000 | 000000 | 5 | 0000000 | 00000 |
| 3/4" | 3/16" | 0.172" | 0.107" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
6-32 | ||||||||||||||
| 1/2" | 7/32" | 0.219" | 0.132" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 3/4" | 7/32" | 0.219" | 0.132" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1" | 7/32" | 0.219" | 0.132" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
8-32 | ||||||||||||||
| 1/2" | 7/32" | 0.25" | 0.156" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 3/4" | 7/32" | 0.25" | 0.156" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1" | 7/32" | 0.25" | 0.156" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
10-24 | ||||||||||||||
| 1/2" | 9/32" | 0.313" | 0.18" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 3/4" | 9/32" | 0.313" | 0.18" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1" | 9/32" | 0.313" | 0.18" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
10-32 | ||||||||||||||
| 1/2" | 9/32" | 0.313" | 0.18" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 3/4" | 9/32" | 0.313" | 0.18" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
| 1" | 9/32" | 0.313" | 0.18" | ASTM A581, ASTM A582 | 000000000 | 0000 | 0000 | 25 | 000000000 | 00000 | 00000 | 5 | 0000000 | 0000 |
Flush-Mount Press-Fit Captive Panel Screws
Slotted
These screws mount flush against the outer panel's surface for low-clearance applications. Install in soft material such as aluminum and low-carbon steel with an arbor press or similar pressure tool. Screws become a part of the panel when installed, so they won't fall out and get lost. They're often used with surface mount nuts.
For technical drawings and 3-D models, click on a part number.
Rounded Head Quarter-Turn Captive
Panel Screws with Front Press-Fit Nut
Slotted
Press these nuts into a closed-end hole or thick panel in applications where the back of the panel is inaccessible. A quarter-turn locks and releases access panels, doors, and covers. The screw is held to the outer panel by a retainer. An installation tool (sold separately) is required to install the retainer. Nuts and screws have a zinc plating to resist corrosion in wet environments. Length is measured from under the screw head.
For Inner Panel | Head | Slotted | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Installation Thick. | Min. Thick. | Hole Dia. | For Min. Space Between Panels | Dia. | Ht. | Lg. | Nut Dia. | Retainer Material | Each | |
Zinc-Plated Steel | ||||||||||
| 0.01"-0.03" | 0.08" | 0.469" | 0.01" | 0.375" | 0.09" | 0.46" | 0.465" | 18-8 Stainless Steel | 000000000 | 00000 |
| 0.03"-0.05" | 0.08" | 0.469" | 0.01" | 0.375" | 0.09" | 0.48" | 0.465" | 18-8 Stainless Steel | 000000000 | 0000 |
| 0.05"-0.07" | 0.08" | 0.469" | 0.01" | 0.375" | 0.09" | 0.5" | 0.465" | 18-8 Stainless Steel | 000000000 | 0000 |
| 0.07"-0.09" | 0.08" | 0.469" | 0.01" | 0.375" | 0.09" | 0.52" | 0.465" | 18-8 Stainless Steel | 000000000 | 0000 |
| 0.09"-0.11" | 0.08" | 0.469" | 0.01" | 0.375" | 0.09" | 0.54" | 0.465" | 18-8 Stainless Steel | 000000000 | 0000 |
| 0.11"-0.13" | 0.08" | 0.469" | 0.01" | 0.375" | 0.09" | 0.56" | 0.465" | 18-8 Stainless Steel | 000000000 | 0000 |
Rounded Head Quarter-Turn Captive
Panel Screws with Back Press-Fit Nut
Slotted
Press these nuts into the backside of a panel in applications where you have access to both sides of the panel. Install with an arbor press or similar pressure tool. A quarter-turn locks and releases access panels, doors, and covers. The screw is held to the outer panel by a retainer. An installation tool (sold separately) is required to install the retainer. Nuts and screws have a zinc plating that provides corrosion resistance in wet environments. Length is measured from under the screw head.
For Panel Thick. | Head | Slotted | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Total | Min. Inner | For Inner Panel Hole Dia. | For Min. Space Between Panels | Dia. | Ht. | Lg. | Nut Dia. | Retainer Material | Each | |
Zinc-Plated Steel | ||||||||||
| 0.05" to 0.07" | 0.037" | 0.437" | 0.01" | 0.375" | 0.09" | 0.46" | 0.54" | 18-8 Stainless Steel | 000000000 | 00000 |
| 0.07" to 0.09" | 0.037" | 0.437" | 0.01" | 0.375" | 0.09" | 0.48" | 0.54" | 18-8 Stainless Steel | 000000000 | 0000 |
| 0.09" to 0.11" | 0.037" | 0.437" | 0.01" | 0.375" | 0.09" | 0.5" | 0.54" | 18-8 Stainless Steel | 000000000 | 0000 |
| 0.11" to 0.13" | 0.037" | 0.437" | 0.01" | 0.375" | 0.09" | 0.52" | 0.54" | 18-8 Stainless Steel | 000000000 | 0000 |
| 0.13" to 0.15" | 0.037" | 0.437" | 0.01" | 0.375" | 0.09" | 0.54" | 0.54" | 18-8 Stainless Steel | 000000000 | 0000 |
| 0.15" to 0.17" | 0.037" | 0.437" | 0.01" | 0.375" | 0.09" | 0.56" | 0.54" | 18-8 Stainless Steel | 000000000 | 0000 |
Rounded Head Quarter-Turn Captive
Panel Screws with Clip-On Nut
Zinc-Plated Steel Slotted
Acetal Plastic Slotted
The nut clips onto the edge of a thin panel, allowing you to mount the screw near edges. A quarter-turn locks and releases access panels, doors, and covers. The screw is held to the outer panel by a retainer. Length is measured from under the screw head.
Zinc-plated steel nuts and screws are corrosion resistant in wet environments. An installation tool (sold separately) is required to install the retainer.
Acetal plastic nuts and screws are chemical resistant and lightweight.
For Panel Thick. | Head | Slotted | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inner | Total | For Hole Dia. | For Min. Space Between Panels | Dia. | Ht. | Lg. | Nut Wd. | Retainer Material | Temperature Range, °F | Color | Each | |
Zinc-Plated Steel | ||||||||||||
| 0.02" to 0.114" | 0.15" to 0.17" | 0.312" | 0.026" | 0.375" | 0.09" | 0.46" | 0.63" | 18-8 Stainless Steel | __ | __ | 000000000 | 00000 |
| 0.02" to 0.134" | 0.17" to 0.19" | 0.312" | 0.026" | 0.375" | 0.09" | 0.48" | 0.63" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
| 0.02" to 0.154" | 0.19" to 0.21" | 0.312" | 0.026" | 0.375" | 0.09" | 0.5" | 0.63" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
| 0.02" to 0.174" | 0.21" to 0.23" | 0.312" | 0.026" | 0.375" | 0.09" | 0.52" | 0.63" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
| 0.02" to 0.194" | 0.23" to 0.25" | 0.312" | 0.026" | 0.375" | 0.09" | 0.54" | 0.63" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
| 0.02" to 0.214" | 0.25" to 0.27" | 0.312" | 0.026" | 0.375" | 0.09" | 0.56" | 0.63" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
Acetal Plastic | ||||||||||||
| 0.03" to 0.09" | 0.19" to 0.24" | 0.512" | 0.04" | 0.625" | 0.13" | 0.85" | 0.945" | Acetal Plastic | -40° to 190° | Black | 000000000 | 0000 |
| 0.03" to 0.09" | 0.24" to 0.29" | 0.512" | 0.04" | 0.625" | 0.13" | 0.9" | 0.945" | Acetal Plastic | -40° to 190° | Black | 000000000 | 0000 |
| 0.03" to 0.09" | 0.34" to 0.39" | 0.512" | 0.04" | 0.625" | 0.13" | 1" | 0.945" | Acetal Plastic | -40° to 190° | Black | 000000000 | 0000 |
| 0.03" to 0.09" | 0.44" to 0.49" | 0.512" | 0.04" | 0.625" | 0.13" | 1.1" | 0.945" | Acetal Plastic | -40° to 190° | Black | 000000000 | 0000 |
Rounded Head Quarter-Turn Captive
Panel Screws with Rivet-Mount Nut
Zinc-Plated Steel Slotted
Acetal Plastic Slotted
Rivet-mount nuts can be riveted into thin panels for a flush fit. They can be mounted without spaces between the panels. A quarter-turn locks and releases access panels, doors, and covers. The screw is held to the outer panel by a retainer. Rivets not included. Install with 3/32" rivets in steel and 1/8" rivets in plastic. Length is measured from under the screw head.
Zinc-plated steel nuts and screws are corrosion resistant in wet environments. An installation tool (sold separately) is required to install the retainer.
Acetal plastic nuts and screws are chemical resistant and lightweight.
For Panel Hole Dia. | Head | Slotted | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Total Panel Thick. | Inner | Outer | Dia. | Ht. | Lg. | Nut Wd. | Retainer Material | Temperature Range, °F | Color | Each | |
Zinc-Plated Steel | |||||||||||
| 0.15" to 0.17" | 0.44" | 0.24" | 0.375" | 0.09" | 0.46" | 0.38" | 18-8 Stainless Steel | __ | __ | 000000000 | 00000 |
| 0.17" to 0.19" | 0.44" | 0.24" | 0.375" | 0.09" | 0.48" | 0.38" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
| 0.19" to 0.21" | 0.44" | 0.24" | 0.375" | 0.09" | 0.5" | 0.38" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
| 0.21" to 0.23" | 0.44" | 0.24" | 0.375" | 0.09" | 0.52" | 0.38" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
| 0.23" to 0.25" | 0.44" | 0.24" | 0.375" | 0.09" | 0.54" | 0.38" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
| 0.25" to 0.27" | 0.44" | 0.24" | 0.375" | 0.09" | 0.56" | 0.38" | 18-8 Stainless Steel | __ | __ | 000000000 | 0000 |
Acetal Plastic | |||||||||||
| 0.15" to 0.2" | 0.438" | 0.39" | 0.625" | 0.13" | 0.85" | 0.5" | Acetal Plastic | -40° to 190° | Black | 000000000 | 0000 |
| 0.2" to 0.25" | 0.438" | 0.39" | 0.625" | 0.13" | 0.9" | 0.5" | Acetal Plastic | -40° to 190° | Black | 000000000 | 0000 |
| 0.3" to 0.35" | 0.438" | 0.39" | 0.625" | 0.13" | 1" | 0.5" | Acetal Plastic | -40° to 190° | Black | 000000000 | 0000 |
| 0.4" to 0.45" | 0.438" | 0.39" | 0.625" | 0.13" | 1.1" | 0.5" | Acetal Plastic | -40° to 190° | Black | 000000000 | 0000 |