SELF-DRILLING SCREWS
AMSI self-drilling screws are an excellent choice for all metal roofing and standing seam metal roofing fastening requirements.
These screws are designed for superior performance in metal-to-metal applications, ensuring strong, reliable connections for metal roof clips and other essential components.
All AMSI self-drilling screws feature a panhead design, with either phillips or combo drive. Head thickness is 0.084"+/-.
- ASO-3 is #2 Phillips drive
- ASO-4 is combo drive
- SSF-101-SD is combo drive
- Meets or exceeds ASTM C-1513 and/ or ASTM C-954
- Galvanized or 410 stainless steel
SELF-DRILLING PANHEAD SCREW
Part Number | Description | Thread | Length | Coating | Drive | Box Qty | Price |
---|---|---|---|---|---|---|---|
ASO-3 | Panhead SD Screw | 10-14 | 5/8" | White Zinc | Phillips | 7,500 | CALL for Pricing |
ASO-4 | Panhead SD Screw | 12-12 | 3/4" | White Zinc | Combo | 5,000 | CALL for Pricing |
SSF-101-SD | Panhead SD Screw | 10-12 | 1" | Stainless | Combo | 6,000 | CALL for Pricing |
*White Zinc is galvanized electroplating.
*410 Stainless Steel fastener, NO COATING.
Note that all stainless steel is magnetic, including 410.

AMSI#12 SCREWS ULTIMATE VALUE CHART
Diameter | Nom. Screw Diameter (inches) | Metal Gauge/1lb | Tension (Pull) lbs 1pc | Shear (lbs) Metal to Metal | Minimum Torsional Strength (lbs) |
---|---|---|---|---|---|
12 | 0.216 | 20 | 314 | 698 | 92 |
12 | 0.216 | 18 | 472 | 983 | 92 |
12 | 0.216 | 16 | 735 | 1556 | 92 |
12 | 0.216 | 14 | 1057 | 2072 | 92 |
12 | 0.216 | 12 | 1242 | 2210 | 92 |
12 | 0.216 | 0.156" | 2685 | 92 | |
12 | 0.216 | 0.187" | 3394 | 92 |
ULTIMATE VALUE CHARTS:
Our self-drilling screws have been rigorously tested for performance in metal roofing and standing seam metal roofing applications. Below are the results based on standardized ASTM testing protocols:
Steel: Screws were driven into steel, ensuring three (3) exposed threads on the off-side of the connection before being tested for pull-out strength.
Wood: Screws were driven 3/4" into wood material, then subjected to pull-out tests using a testing machine.
Note that all results were obtained in strict adherence to ASTM test protocols. These ultimate figures are offered only as a guide and are not guaranteed in any way by AMSI (Architectural Metal Specialties Inc.). A 4:1 safety ratio is recommended.
INSTALLATION GUIDELINES:
Proper installation is critical for ensuring the performance and longevity of your self-drilling screws in metal roofing projects. Follow these guidelines for best results:
- Use a 0-2500 RPM screw gun with torque adjustment to prevent overdriving. Overdriving may cause fastener failure or strip-out of the work surface.
- Ensure the fastener is fully seated, with the screw head's bearing surface flush against the work surface.
- When securing metal roof clips, confirm that the fasteners penetrate the framing securely for maximum holding power.
- Always wear eye protection when driving screws, as screws and driver bits may fracture or shatter, posing a risk of serious injury or blindness.
Browse our selection today and get the perfect screw size for your project.