This precision shoulder thumb screw is a hand-adjustable fastener for buyers who need to secure components without relying on a separate tool. Its knurled head supports a firm finger grip, while the shoulder is designed to provide a bearing surface.
Each steel thumb screw has #4-40 threading, a 1/4 in. thread length, and a 3/8 in. head diameter. The head features a diamond knurl, and the package contains five screws.
Key Features:
- Diamond-knurled head: Provides a textured grip for hand tightening and loosening.
- Shouldered design: Offers a bearing surface at the screw head.
- #4-40 thread: Supports compatibility with matching #4-40 threaded components.
- Five-screw package: Supplies multiple fasteners for replacement or project needs.
Choose this shoulder thumb screw when a #4-40, hand-operated fastener with a 1/4 in. thread length and 3/8 in. knurled head is the right fit for your assembly.
| Country of Origin: |
Made In USA |
| Material: |
Steel |
| Product Depth: |
3" |
| Product Height: |
0.75" |
| Product Type: |
Knurled Head |
| Product Width: |
3" |
| Quantity Included: |
1 |
| Shipping Weight: |
5 lbs |
| Manufacturer Part Number: |
3101 |
| Color: |
Red |
| Head Diameter: |
3/8 in |
| Head Length: |
3/32 in |
| Shoulder Diameter: |
1/4 in |
| Shoulder Length: |
3/32" |
| Size: |
#4-40 |
| Thread Length: |
1/4 in |
| Unit of Measurement: |
Inch (Imperial) |
| Brand: |
Morton Machine Works |
| Finish: |
Black Oxide |
| Knurling: |
Diamond |
| Manufacturers Part Number: |
3101 |
| Package Quantity: |
5 |
| Width: |
3.00
in
|
| Height: |
75.00
in
|
| Depth: |
3.00
in
|
No additional information available.