#12 Indent Hex Washer Head Self-Drilling Screws with EPDM Sealing Washers

410 Hardened Stainless Steel for Superior Strength and Corrosion Resistance

Enhance your projects with our high-quality #12 Indent Hex Washer Head (HWH) Unslotted Self-Drilling Sheet Metal Screws, featuring EPDM sealing washers. Made from 410 Hardened Stainless Steel (Washer: EPDM Rubber and Stainless Steel), these screws offer exceptional strength and good corrosion resistance, making them suitable for a wide range of applications. Please note that 410 stainless steel is magnetic due to its martensitic structure, which also provides the necessary hardness for self-drilling capabilities.

Key Features

• Diameter: #12 / 0.216 inch
• Thread Size: 14 Threads Per Inch (TPI)
• Drive: External Hex, 5/16 inch – Available Here
• Type: Self-Drilling Sheet Metal Screw with Bonded EPDM Sealing Washer, #3 Point
• Material: 410 Hardened Stainless Steel (Washer: EPDM Rubber and Stainless Steel)
• System of Measurement: Inch (Imperial / US)
• Head Style: Indent Hex Washer Head (Unslotted)
• Hex Size (Across Flats): 5/16 inch (Hex Drive Size)
• Head Diameter (Max, Min): Max 0.432 inch, Min 0.398 inch
• Head Height (Max, Min): Max 0.194 inch, Min 0.161 inch
• EPDM Washer Diameter: 5/8 inch (0.625 inch)
• Standards: Compliant with ASME B18.6.3, IFI-113

Material Properties of 410 Stainless Steel

410 stainless steel is a general-purpose martensitic stainless steel with approximately 11.5–13.5% chromium content. It offers a combination of:

• Good Corrosion Resistance: Effective in mildly corrosive environments such as water and atmospheric conditions.
• High Strength and Hardness: Can be heat-treated to achieve various levels of hardness and mechanical properties.
• Wear Resistance: Suitable for applications where abrasion and wear are concerns.
• Magnetic Properties: Due to its martensitic structure, it is magnetic.

Note: While 410 stainless steel offers good corrosion resistance, it may not be suitable for highly corrosive or marine environments where grades like 304 or 316 stainless steel are preferred.

Ideal Applications

• Roofing and Siding Installations
• Metal Building Construction
• HVAC Ductwork
• Automotive Sheet Metal Work
• General Metal Fabrication

Why Choose These Screws?

• Self-Drilling Capability: Designed to drill through metal up to 0.150 inch thick (up to 12 gauge sheet metal) without pre-drilling, saving time and effort.
• Good Corrosion Resistance: 410 stainless steel provides reliable corrosion resistance in mildly corrosive environments.
• High Strength and Hardness: The hardened martensitic structure offers excellent strength and wear resistance.
• EPDM Sealing Washer: Provides a watertight seal, ideal for roofing and exterior applications where moisture protection is crucial.
• Magnetic Properties: The magnetic nature of 410 stainless steel allows for easier handling and installation with magnetic tools.

Installation Tips

For optimal performance when self-drilling through metal:

• Use high pressure and low speed to prevent wearing out the self-drilling tip.
• Ensure the screw is perpendicular to the work surface to prevent wandering.
• A magnetic nutsetter can aid in quick and easy installation.

Note: These screws feature a #3 drill point for drilling into metal.

Need the Right Tools?

Use a 5/16 inch Magnetic Nutsetter for efficient installation. Available here.

Order Yours Today

Upgrade your fastening solutions with our #12 Indent Hex Washer Head Self-Drilling Screws with EPDM sealing washers. Perfect for projects requiring a secure, watertight seal, strength, and reliable corrosion resistance. Order now and benefit from fast shipping and exceptional customer service!

✔️ Trusted by professionals in construction and metalworking industries

✔️ Compliant with ASME B18.6.3, IFI-113 standards