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These steel screws are zinc plated to resist corrosion in wet environments. They're beveled under the head for use in countersunk holes. Screws cut threads in drilled holes as they’re turned, so they require less driving torque and cause less stress on your material than thread forming screws. Length is measured from the top of the head.
| Manufacturer | KL Jack Quality Vendor |
|---|---|
| Item Type | Flat Head Thread Cutting Screw |
| System of Measurement | Inch |
| Drive Type | Phillips |
| Diameter | 1/4" |
| Length (inches) | 1-1/2" |
| Countersink Angle | 82° |
| Drive Size | #3 |
| Head Diameter | 0.442"-0.477" |
| Head Height | 0.131"-0.153" |
| Head Style | Flat |
| Material | Steel |
| Pilot Drill Diameter | #2 Drill |
| Point Type | F |
| Specification | ASME B18.6.3 |
| Threads Per Inch | 20 |
| Thread Type | Coarse |
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