DeWALT Drillit® Self-Drilling Metal Screws – PBH | Stalgard® Coated Fasteners for Metal-to-Metal Applications, 100/Packs

Drilit® self-drilling fasteners eliminate separate drilling and tapping for faster, more economical installations. The hex washer head provides positive drive and bearing surface for reliable seating, while the integrated self-drilling point speeds penetration in steel and other common substrates. Available with Stalgard® and Gray Stalgard® corrosion-resistant finishes (ASTM B117 ~1,000-hour salt-spray performance), and in select sizes with EPDM bonded sealing washers for a weather-tight seal. Gray Stalgard® is compatible with ACQ-treated lumber up to 0.25 pcf retention, expanding your use cases into mixed-material assemblies.

Key Features

• Self-drilling tip — eliminates pre-drilling/tapping for faster installs
• Hex washer head — strong wrenching flats and stable seating under load
• Stalgard® / Gray Stalgard® coatings — typically no red rust at ~1,000 hrs (ASTM B117); Gray Stalgard® compatible with ACQ lumber ≤ 0.25 pcf
  
• PDM bonded sealing washer (optional) — weather-tight seal available in multiple sizes/configurations
• Broad point options — #1, #2, and #3 drill points to match material thickness
• Zinc finish options — economical plating available on select sizes

Applications

• Steel-to-steel connections
• Wood-to-steel connections
• Composite material-to-steel connections

Available Head Styles

• Hex Washer Head (this page)
• Hex Washer Head with EPDM Bonded Sealing Washer (select sizes)

Drill Point Types

• #1, #2, and #3 (varies by size and base-material thickness)

Screw Sizes & Thread Options

• Diameters: #6, #8, #10, #12, 1/4″, 5/16″
• Thread counts: 20 TPI (#6), 18 TPI (#8, 5/16″), 16 TPI (#10), 14 TPI (#12, 1/4″)
• Length range: 1/2″ to 4″ (per item table)
• Typical drive sizes: 1/4″, 5/16″, 3/8″ (varies by diameter)
• Finishes: Stalgard®, Gray Stalgard®, and Zinc (by SKU)

Product type: Self-drilling/tapping screws — eliminate separate drilling and tapping for faster installs. 

Head / drive: Hex Washer Head (indented); typical drives by diameter: #10 & #12 = 5/16″, 1/4″ & 5/16″ = 3/8″. (from your size table)

Materials & finishes: Case-hardened steel with Stalgard® / Gray Stalgard® or Zinc (by SKU). Stalgard finishes typically show no red rust at ~1,000 hrs ASTM B117. 

Point types: #1, #2, #3 (varies by SKU) for matching base-material thickness. (from your size table)

Approvals (family): ICC-ES ESR-3294, ESR-4367; tested per AC118 (steel-to-steel) and AC500 (misc. materials to steel).

Nominal head & drive dimensions (by diameter)

• #10: head Ø 0.400″, head height 0.185″, drive 5/16″.
• #12: head Ø 0.415″, head height 0.180″, drive 5/16″.
• 1/4″: head Ø 0.500″, head height 0.230″, drive 3/8″.
• 5/16″: head Ø 0.600″, head height 0.270″, drive 3/8″. (All from your specification table.)

Representative size/pack examples with weights

• DFSEDB446 — #10-16 × 3/4″, #3 point (Stalgard), Full Case qty 6,000/box Head Ø 0.400″ · head height 0.185″ · drive 5/16″ · shank #10 Box weight ~42 lb. 
• DFSEDB486 — #10-16 × 1″, #3 point (Stalgard), Full Case qty 5,000/box Head Ø 0.400″ · head height 0.185″ · drive 5/16″ · shank #10 Box weight ~45 lb. 
• DFSEDB571 — #10-16 × 2″, #3 point (Stalgard), Full Case qty 2,000/box Head Ø 0.400″ · head height 0.185″ · drive 5/16″ · shank #10 Box weight ~30 lb. 
• DFSEDB761 — #12-14 × 1″, #3 point (Stalgard), Full Case qty 4,000/box Head Ø 0.415″ · head height 0.180″ · drive 5/16″ · shank #12 Box weight ~45 lb. 
• DFSEDB936 — 1/4″-14 × 3/4″, #3 point (Stalgard), Full Case qty 3,500/box Head Ø 0.500″ · head height 0.230″ · drive 3/8″ · shank 1/4″ Box weight ~49 lb. 
• DFSEDB981 — 1/4″-14 × 3″, #3 point (Stalgard), Full Case qty 800/box Head Ø 0.500″ · head height 0.230″ · drive 3/8″ · shank 1/4″ Box weight ~30 lb. 
• DFSEDB991 — 5/16″-18 × 1″, #3 point (Stalgard), Full Case qty 1,000/box Head Ø 0.600″ · head height 0.270″ · drive 3/8″ · shank 5/16″ Box weight ~30 lb. 

Notes: • Pack quantities, head sizes, and drive sizes shown above come from your provided table; weights are published box weights from distributors and can vary slightly by packaging/batch. For SKUs with EPDM bonded sealing washers, use the corresponding washer diameter row in your table; these versions provide a weather-tight seal.

Q: Why choose DEWALT Drilit® DFSEDB741 self-drilling screws?
A: They provide fast, reliable metal-to-metal fastening with a self-drilling point, hex washer head for high torque transfer, and Stalgard® corrosion protection for long-lasting performance.

Q: Do these require pre-drilling?
A: No. The self-drilling point eliminates the need for separate drilling and tapping in most steel applications.

Q: Are these screws code compliant?
A: Yes. Drilit® Standard screws are ICC-ES evaluated (ESR-3294 and ESR-4367) for compliance with IBC/IRC codes.

Q: Where is DFSEDB741 typically used?
A: In roofing, siding, and general construction where metal-to-metal connections require secure, weather-resistant fastening.