1/4-20X1 1/2 Six Lobe Flat Floor Board Screw Type F Black Phosphate Pkg of 1000 1424FTFB

These 1/4-20x1 1/2 six lobe flat floor board screws are ideal for heavy-duty applications in sheet metal, aluminum, zinc, lead die castings, cast iron, brass, and plastic. Their thread-cutting type-F threaded design allows for secure fastening in materials with lower hardness, making them suitable for stainless steel and other challenging materials. With a flat head design, these screws minimize protrusion above the mating surface, ensuring a clean finish. Perfect for applications where a flush installation is required, such as in heavy machinery, automotive, and construction industries, these screws provide reliable and durable fastening solutions.

Top product features:

• Thread-cutting type-F threaded screws are used in heavy gauge sheet metal, aluminum, zinc, and lead die castings, cast iron, brass, and plastic.
• Flat head screws are used when protrusion of the fastener above the mating surface is unacceptable, typically 100 degree flat or for fastening softer materials 82 degrees flat.
• The screws are designed to cut threads in stainless steel material with a lower hardness by 10-20 Rockwell hardness.

Top product applications:

• Heavy gauge sheet metal assembly
• Cast iron construction and repair
• Die cast aluminum zinc and lead applications