Flat Undercut Head

Flat undercut head fasteners in this category are full-thread, Phillips-drive self-drilling screws for fastening materials without first drilling a pilot hole. They are suited to commercial maintenance, assembly, installation, contractor, and ongoing fastening work where a flat-head profile is preferred on short-length screw applications.

Product Display:
Helpful Buying Guide

Choose Flat Undercut Head Self-Drilling Screws for the Job

Compare screw size, length, listed material option, and package quantity to match the fastening work at hand. Every represented option has a self-drilling point and full-thread design, while the available range spans #6 through #14 sizes and 3/8 inch through 1-1/2 inch lengths.

Visual Guide

Popular examples in this category

Use Cases

Streamline fastening steps

Self-drilling points cut through material during installation, helping eliminate the separate pilot-hole step for maintenance, assembly, installation, and contractor work.

How to Choose

Match size, length, and quantity

Select from #6, #8, #10, and #14 screw sizes, then compare lengths from 3/8 inch to 1-1/2 inch and pack counts from 1,000 to 10,000 pieces.

Applications

For flat-head short-length needs

Flat undercut heads provide a flat-head option for shorter-length screw applications where that profile is preferred.

Additional Info

Phillips drive and full thread

The represented screws use a Phillips drive and provide threading along the screw length for fastening needs.

#6–#14Screw sizes

Represented diameter sizes run from #6 through #14.

3/8–1-1/2 in.Lengths

Listed lengths span 3/8 inch to 1-1/2 inch.

1,000–10,000Pieces per pack

Available package quantities range from 1,000 to 10,000 pieces.

3Listed material finishes

Select products list 410 stainless steel, 18-8 stainless steel, or zinc bake.

Comparison Guide

Compare the Represented Options

Use size and length for fit, then review the listed material option and pack count for your purchasing needs.

Product typeAvailable represented sizes and lengthsListed material options and pack counts
Smaller-diameter options#6: 3/8 in. or 1/2 in.; #8: 1/2 in. or 3/4 in.410 stainless steel or 18-8 stainless steel on select options; 5,000 or 10,000 pieces.
Mid-range options#10: 3/4 in., 1-1/4 in., or 1-1/2 in.Zinc bake on the 1-1/4 in. option; 1,000, 4,000, or 7,000 pieces.
Larger-diameter option#14: 1 in.Material not stated in the supplied summary; 3,000 pieces.
Planning Guide

Plan the right fit before choosing

Start With the Fastening Requirement

Choose the screw diameter and length

The category includes #6, #8, #10, and #14 screw sizes. Available lengths include 3/8 inch, 1/2 inch, 3/4 inch, 1 inch, 1-1/4 inch, and 1-1/2 inch.

  • #6 options are listed in 3/8 inch and 1/2 inch lengths.
  • #8 options are listed in 1/2 inch and 3/4 inch lengths.
  • #10 options are listed in 3/4 inch, 1-1/4 inch, and 1-1/2 inch lengths.
  • A #14 option is listed in a 1 inch length.
Compare Product Details

Review material listings and package count

Several selections list 410 stainless steel, 18-8 stainless steel, or zinc bake, while other represented listings do not state a material in the supplied summary. Pack quantities support different replenishment and larger fastener needs.

  • Listed pack counts range from 1,000 to 10,000 pieces.
  • 5,000-piece packs are available in several listed sizes.
  • Zinc bake is listed on select #8 and #10 options.
  • Stainless steel is listed on select #6 and #8 options.
Plan the Installation

Use the shared screw features

Across the represented products, the self-drilling point cuts through material during installation, and the full-thread design provides threading along the screw length. A compatible Phillips driver supports installation.

  • Self-drilling points help avoid drilling a pilot hole first.
  • Flat undercut heads provide a flat-head profile.
  • Full-thread construction is represented across the category.
  • Phillips drive is listed for installation.
FAQ

Common questions before buying

What is the benefit of a self-drilling point?

It cuts through material during installation, helping eliminate the need to drill a separate pilot hole.

What drive type is listed for these screws?

The represented screws use a Phillips drive for installation with a compatible Phillips driver.

What sizes are available in this category?

Represented options range from #6 through #14 and from 3/8 inch through 1-1/2 inch in length.

What package quantities are represented?

Listed package counts include 1,000, 3,000, 4,000, 5,000, 7,000, and 10,000 pieces.