#12-14 Indent Hex Washer Head Self-Drilling Screws (#3 Point)

Stainless 410 | Bonded EPDM Washer | Bulk Fastening Solutions

Upgrade your roofing, siding, and metal fabrication tasks with #12-14 Indent Hex Washer Head (HWH) Self-Drilling Screws featuring a #3 drill point. Made from hardened 410 stainless steel, these screws deliver outstanding tensile strength and moderate corrosion resistance. Each fastener is equipped with a bonded EPDM washer for superior leak protection—ideal for exterior applications where water intrusion is a concern. Stock up in bulk to save on costs and ensure you always have a reliable supply on hand.

Key Features

• Thread Size: #12-14 (14 TPI)
• Drive/Head Style: Indent Hex Washer Head (Unslotted), External Hex
• Drill Point: #3 Self-Drilling Tip (BSD)
• Material: Hardened 410 Stainless Steel
• Washer: Bonded EPDM Washer for leak-resistant sealing
• Drive Size: 5/16 inch Hex – 5/16" Magnetic Nutsetters Available
• Measurement System: Inch (Imperial/US)
• Bulk Ordering: Multiple package quantities available

Why Bonded EPDM Washers?

The bonded EPDM washer integrates a thin layer of EPDM rubber with a metal washer, forming a water-tight seal under the fastener head. EPDM (Ethylene Propylene Diene Monomer) rubber is known for its weather resistance, making it especially effective in roofing, siding, and other outdoor metal applications.

Advantages of 410 Stainless Steel

Hardened 410 stainless steel is a martensitic alloy that can be heat-treated for greater strength and wear resistance compared to standard 300-series stainless. While providing moderate rust protection, it excels in demanding metal-to-metal fastening tasks, balancing performance and corrosion resistance.

Ideal Applications

• Roofing and Siding Installations
• Sheet Metal Fabrication and Repair
• Automotive, RV, and Trailer Manufacturing
• Construction, Maintenance, and General Assembly
• Bulk Projects Requiring Heavy-Duty Fasteners

Installation Tips

• Apply steady, moderate pressure for the #3 self-drilling tip to engage.
• Use a 5/16" Magnetic Nutsetter to simplify driving and reduce slippage.
• Maintain a perpendicular approach to ensure proper washer contact and leak prevention.
• Avoid over-tightening to preserve thread integrity and washer sealing.

Bulk Ordering Benefits

• Lower Unit Cost: Ideal for large-scale jobs or continuous usage.
• Reliable Supply: Keep your operation running smoothly without supply delays.
• Consistent Quality: Industry-standard manufacturing for dependable performance.

Order in Bulk Today

Get the sturdy performance and leak protection you need with #12-14 Indent Hex Washer Head Self-Drilling Screws in hardened 410 stainless steel. Order in bulk now and enjoy fast shipping, discounted pricing, and the confidence that every screw delivers consistent, reliable results!

✔️ Perfect for demanding exterior metalwork

✔️ EPDM washers prevent leaks and moisture infiltration

✔️ Hardened 410 stainless for elevated strength