Photographs are representational and may not be size accurate.
OneSource
1/4-20 x 3 Inch Coated Steel #4 Point Flat - Countersunk Head Self-Drilling Tek Screw With Wings
Item B21.2.1420.3
These machine screws have deeply sunk heads with flat top surfaces for fastening flatly against sides of metal joints and equipment. These screws sit flush against the surface of panels and electrical components for a finished look.
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Estimated delivery: 3–7 business days
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Photographs are representational and may not be size accurate.
Key Specifications
| Length | 3 Inch |
| Head Style | Flat |
| Drive Type | Phillips |
| Material | Steel |
| Finish | Zinc |
Description
Description
These machine screws have deeply sunk heads with flat top surfaces for fastening flatly against sides of metal joints and equipment. These screws sit flush against the surface of panels and electrical components for a finished look.
- Zinc Plating Meets ASTM B-117 for Salt Spray Corrosion
- Item: Self-Drilling TEK Screw with Wings
Specifications
General
- Finish
- Zinc
- Material
- Steel
- Measurement System
- Inch
- Origin
- Imported
Dimensions
- Length
- 3 Inch
- Diameter
- 1/4 Inch
- Threads Per Inch
- 20
- Head Diameter
- 0.437 – 0.477 Inch
- Head Height
- 0.110 Inch
- Drive Size
- #3
- Recess Penetration Gagging Depth
- 1/4 FPT x 1/4 MPT
- Recess Diameter
- 0.276 Inch
Features
- Drive Type
- Phillips
- Head Style
- Flat
- Point Type
- #4
Certifications & Standards
- Standards
- ASME/ANSI B18.6.4 - SAE J78 - SAE J933
