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OneSource
#4-40 x 3/8 Inch Coarse Black Oxide Medium Carbon Steel Button Head Socket Cap Screw
Item B05.4.38
Socket head cap screws are commonly used in machine assembly for removable panels and parts. They have a round cap with a hex head and are tightened with a socket wrench drive. Longer caps are easier to see when fastened while button and flat head caps are less likely to snag clothing or linkages. Cap screws with a black oxide or armor coat finish resist corrosion.
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Key Specifications
| Diameter | #4 |
| Length | 3/8 Inch |
| Thread Type | Coarse |
| Head Style | Button |
| Drive Type | Internal Hex |
| Material | Medium Carbon Steel |
Description
Description
Socket head cap screws are commonly used in machine assembly for removable panels and parts. They have a round cap with a hex head and are tightened with a socket wrench drive. Longer caps are easier to see when fastened while button and flat head caps are less likely to snag clothing or linkages. Cap screws with a black oxide or armor coat finish resist corrosion.
- Button head with hexagonal recessed drive
- Designed for light duty applications such as securing guards covers and ornamental fixtures
- Low head profile presents a pleasing appearance
- Item: Socket Cap Screw
Specifications
General
- Finish
- Black Oxide
- Material
- Medium Carbon Steel
- Measurement System
- Inch
- Origin
- Imported
- Type
- Full Threaded
Dimensions
- Diameter
- #4
- Length
- 3/8 Inch
- Thread Type
- Coarse
- Threads Per Inch
- 40
- Thread Length
- 3/8 Inch
- Head Diameter
- 0.201 – 0.213 Inch
- Head Height
- 0.051 – 0.059 Inch
- Key Size
- 1/16 Inch
Features
- Drive Type
- Internal Hex
- Head Style
- Button
- Tensile Strength
- 145,000 psi
Certifications & Standards
- Standards
- ASME/ANSI B18.3 - ASTM F835
