Flat Head

Phillips Drive - Type F
| Compare | Image | Head | Length | Size | Finish | Package Quantity | Model # | Price | |
|---|---|---|---|---|---|---|---|---|---|
![]() | Flat | 2 1/2 in | 1/4-20 | Zinc | 800 | Ships Same Day WBB408916 | $329.95 | ||
![]() | Flat | 5 in | 3/8-16 | Zinc | 225 | Ships Same Day WBB413460 | $829.00 | ||
![]() | Flat | 1 in | 1/4-20 | Zinc | 3000 | Ships Same Day WBB406188 | $445.95 |

Metric Thread Rolling Screws

Phillips Drive - Type 25

6 Lobe Drive - Type F
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12-24X1/2 Phillips Flat Undercut Thread Cutting Screw Type F Fully Threaded Zinc. Thread-Cutting Type-F threaded screws are used in heavy gauge sheet metal, aluminum, zinc and lead die castings, cast iron, brass and plastic. In stainless steel, material into which the screw is to cut threads should have a lower hardness by 10-20 Rockwell hardness. Flat undercut heads are used when a flat head is desired on shorter length screws.
5/16-18X1 1/4 Six Lobe Pan Thread Cutting Screw Type 23 Fully Threaded Zinc Bake. Thread-Cutting Type-23 screws provide excellent chip clearance with minimum tightening torques. Steel: Used in cast iron and zinc, aluminum die castings, and plastics. Stainless: Material into which the screw is to cut threads should have a lower hardness. Pan head screws are a common style that can substituted in most applications for round, truss or binding heads.
8X1/4 Phillips Truss Thread Cutting Screw Type 25 Fully Threaded Zinc Bake. Thread-Cutting Type-25 screws provide excellent chip clearance. Steel: Used in molded or through holes in plastics and other soft materials. Stainless: Material into which the screw is to cut threads should have a lower hardness by 10-20 Rockwell hardness. Truss head screws are weaker than pan or round heads but preferred in applications where minimal clearance exists above the head. Modified truss heads offer low clearance and an extra large bearing surface. Commonly used to attach metal lathe to metal studs.
4-40X3/8 Phillips Pan Thread Cutting Screw Type F Fully Threaded 18 8 Stainless Steel. Thread-Cutting Type-F threaded screws are used in heavy gauge sheet metal, aluminum, zinc and lead die castings, cast iron, brass and plastic. In stainless steel, material into which the screw is to cut threads should have a lower hardness by 10-20 Rockwell hardness. Pan head screws are a common style that can substituted in most applications for round, truss or binding heads.
10-24X5/8 Phillips Pan Thread Cutting Screw Type 23 Fully Threaded 18 8 Stainless Steel. Thread-Cutting Type-23 screws provide excellent chip clearance with minimum tightening torques. Steel: Used in cast iron and zinc, aluminum die castings, and plastics. Stainless: Material into which the screw is to cut threads should have a lower hardness. Pan head screws are a common style that can substituted in most applications for round, truss or binding heads.






