Photographs are representational and may not be size accurate.
OneSource
#4-40 x 1/4 Inch Coarse Black Oxide Medium Carbon Steel Flat Head Socket Cap Screw USA
Item B57.4.14
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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Photographs are representational and may not be size accurate.
Key Specifications
| Diameter | #4 |
| Drive Type | Internal Hex |
| Finish | Black Oxide |
| Head Style | Flat |
| Length | 1/4 Inch |
| Material | Medium Carbon Steel |
| Measurement | Inch |
| Origin | USA |
| Thread Type | Coarse |
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.
- Made in USA
- Flat or countersunk head with hexagonal recessed drive
- Used to hold thin section metals together
- Applications that require a neat smooth surface
- Drive Size: 1/16
- Drive Type: Internal Hex
- Finish: Black Oxide
- Head Diameter: 0.218 - 0.255 Inch
- Head Height: 0.083 Inch
- Head Style: Flat
- Industry Standard: ASME/ANSI B18.3
- Item: Socket Cap Screw
- Key Size: 1/16 Inch
- Length: 1/4 Inch
- Material: Medium Carbon Steel
- Measurement: Inch
- Origin: USA
- Specification: ASME/ANSI B18.3 ASTM F835
- Tensile Strength : 145000 psi
- Thread Length: 1/4 Inch
- Thread Type: Coarse
- Threads Per Inch: 40
- Type: Full Threaded
