1/4"-14 Flat Head Square Self-Drilling Screws (#3 Point)

Hardened 410 Stainless Steel | Bulk Metal Fastening Solutions

Optimize your fastening needs with 1/4"-14 Flat Head Square Self-Drilling Screws, designed with a #3 BSD point to drill effortlessly into thicker metal surfaces without pre-drilling. Constructed from hardened 410 stainless steel, these screws provide exceptional tensile strength and moderate corrosion resistance, perfect for HVAC, construction, and heavy-duty industrial applications. The flat head ensures a flush finish, while the square (Robertson) drive prevents cam-out, offering better torque control and a secure fit.

Key Features

• Size & Thread: 1/4"-14 (14 TPI)
• Head Style: Flat Head, Square (Robertson) Drive
• Drill Point: #3 Self-Drilling (BSD) for heavy-gauge metals
• Material: Hardened 410 Stainless Steel for superior durability
• Corrosion Resistance: Moderate protection for indoor/outdoor use
• Drive: Square/Robertson – Square Drive Bits Available
• Measurement System: Inch (Imperial/US)
• Bulk Options: Various package sizes to meet project demands

Why Choose Hardened 410 Stainless Steel?

Hardened 410 stainless steel offers a balance of strength and wear resistance, making it ideal for demanding environments. Heat-treated for durability, these screws deliver the toughness needed for heavy-duty fastening while offering moderate corrosion resistance.

Ideal Applications

• Steel Framing & Construction
• HVAC Installations & Ductwork
• Automotive & Heavy Equipment Repairs
• Industrial Machinery Assembly
• Metal Panel & Structural Applications

Installation Tips

• Use a square/Robertson drive bit for increased torque and reduced slippage.
• Apply consistent pressure to ensure the #3 self-drilling tip cuts effectively.
• Ensure screws are aligned perpendicularly to achieve a flush finish.
• Avoid over-tightening to protect the screw head and maintain material integrity.

Order in Bulk Today

Get the best fastening solution with 1/4"-14 Flat Head Square Self-Drilling Screws in hardened 410 stainless steel. Order now to enjoy fast shipping, bulk discounts, and premium durability for all your industrial needs.

✔️ High-strength 410 stainless steel for superior performance

✔️ Self-drilling #3 point eliminates pre-drilling

✔️ Square drive provides enhanced torque and reduced cam-out