1/4"-14 Indent Hex Washer Head Self-Drilling Screws (#3 Point)

Hardened 410 Stainless Steel | Bonded EPDM Washer | Bulk Options

Tackle heavy-duty metal tasks with 1/4"-14 Indent Hex Washer Head (HWH) Unslotted Self-Drilling Screws, equipped with a #3 drill point for efficient penetration into tougher materials. Constructed from hardened 410 stainless steel, these screws offer superior tensile strength and moderate corrosion resistance, making them excellent for roofing, siding, and industrial metal applications. Each fastener comes with a bonded EPDM washer for leak protection in outdoor or high-moisture environments. Choose from various bulk quantities to meet your project’s needs.

Key Features

• Size & Thread: 1/4"-14 (14 TPI)
• Head Style: Indent Hex Washer Head (HWH), Unslotted
• Drill Point: #3 Self-Drilling Tip (BSD)
• Material: Hardened 410 Stainless Steel
• Washer: Bonded EPDM Washer for leak-resistant sealing
• Drive Size: External Hex (3/8 inch) – 3/8" Magnetic Nutsetters Available
• Bulk Ordering: Multiple package sizes for cost efficiency
• Measurement System: Inch (Imperial/US)

Bonded EPDM Washer Benefits

The bonded EPDM washer fuses a metal backing with EPDM rubber to create a weatherproof seal under the screw head. Known for its UV stability and temperature tolerance, EPDM ensures long-lasting leak protection in outdoor roofing, siding, and metal-to-metal applications.

Why Hardened 410 Stainless Steel?

Hardened 410 stainless steel provides enhanced strength and wear resistance compared to standard 300-series stainless. While it offers moderate corrosion protection, its true advantage lies in withstanding high-stress scenarios, making it perfect for heavy-duty construction, fabrication, and maintenance projects.

Ideal Applications

• Roofing & Siding Installations
• Industrial Metal Framing & Fabrication
• Equipment & Machinery Assembly
• Metal Shop Projects & General Construction
• Large-Scale Manufacturing Requiring Bulk Fasteners

Installation Tips

• Use steady pressure so the #3 tip can self-drill effectively.
• Employ a 3/8" Magnetic Nutsetter for quick, precise driving.
• Keep the screw perpendicular to the surface to ensure a reliable seal and grip.
• Avoid over-torqueing to preserve EPDM washer integrity and maintain tension.

Order in Bulk Today

Reduce installation time and boost durability with 1/4"-14 Indent HWH Self-Drilling Screws in hardened 410 stainless steel. Order now for fast shipping, bulk discounts, and the dependable performance professional contractors trust.

✔️ Ideal for high-strength metal applications

✔️ Self-drilling design saves on labor time

✔️ Bonded EPDM washer combats leaks and moisture