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Product photography of the self-tapping screws family. Item shown is a catalog representative; exact specification is confirmed with your quotation.
304 Stainless Countersunk Self-Tapping Screws (KA Series)
Countersunk (flat head) cross recess self-tapping screws — sits flush in a countersunk hole while tapping its own thread.
MOQ depends on specification — contact us · Quotation based on quantity and specification. Every inquiry is answered by a person.
Specifications
| Series code | KA series |
|---|---|
| Material | 304 Stainless Steel |
| Finish | Plain (Stainless) |
| Head type | Flat Countersunk |
| Drive | Cross recess (Phillips) |
| Thread | Self-tapping |
| Size range | Available sizes on request — depends on specification |
| Packaging | standard export packing — details with quotation |
| MOQ | MOQ depends on specification — contact us |
| Lead time | Depends on stock status and sourcing route — confirmed with your quotation |
Applications
- Sheet metal and thin plates where heads must sit flush
- Furniture and cabinet joinery
- Electronics housings with countersunk seats
Technical notes
The cone-shaped head seats into a matching 90° countersink; the tapered tapping thread cuts its own mating thread in the substrate.
Countersink the pilot hole to match the head angle, or the head sits proud and loads unevenly.
304 Stainless Countersunk Self-Tapping Screws (KA Series) — FAQ
Do I need a countersunk hole?
For a flush finish yes — the flat head needs a 90° countersink. Without one the screw still clamps, but the head sits above the surface.
Sharp or blunt tip?
These are standard sharp-point self-tapping screws. If your line runs into thicker metal, ask about thread-forming alternatives in your RFQ.
Related products
Thin Head Screws — 304 Stainless
Thin head (low profile) cross recess self-tapping screws — where headroom is tight and heads must stay discreet.
304 Stainless Countersunk Self-Tapping Screws (KB Series)
Countersunk (flat head) cross recess self-tapping screws — sits flush in a countersunk hole while tapping its own thread.
Pan Head Cross Self-Tapping Screws — 304 Stainless
Pan head cross recess self-tapping screws — forms its own thread in sheet metal, wood and plastics.
304 Stainless Pan Head Self-Tapping Screws (PB Series)
Pan head cross recess self-tapping screws — the standard small-screw choice for fast one-step assembly.
Related guides
Self-Tapping vs Machine Screws: What's the Difference?
The thread decides everything — how each screw type grips, where each belongs, and why getting this one detail right saves the most rework.
Read →Metric Screw Sizes & Thread Pitches (M2–M12 Quick Reference)
A plain table of the ISO metric coarse and fine pitches you will actually meet in small fasteners — plus tapping drill sizes, how to read an M-size callout, and the traps that cause wrong-thread orders.
Read →304 Stainless vs Carbon Steel Screws: Which Should You Buy?
Corrosion resistance, strength, appearance and price — a practical way to choose between stainless and plated carbon steel screws for your application.
Read →Understanding Screw Head Types — Pan, Flat, Socket Cap & More
Head geometry decides how a screw sits, spreads load and looks after assembly — a field guide to the head types in our catalog and when to use each.
Read →Request a quote
304 Stainless Countersunk Self-Tapping Screws (KA Series)
Send your sizes and requirements — quotation based on quantity and specification, with this category's context attached.
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