Phillips Truss Head Machine Screws Extra Wide Truss Head Phillips Screw

설명

Phillips Truss Head Machine Screws Extra Wide Truss Head Phillips Screw

What Is a Phillips Truss Head Machine Screws?

A Phillips Truss Head Machine Screw is a type of fastener with a low-profile, wide-diameter head and a Phillips drive recess (cross-shaped). The truss head is slightly rounded with a flat bearing surface, providing a larger contact area than pan or flat heads while maintaining a low height. These screws are commonly used in applications requiring flush or near-flush mounting with enhanced clamping force .

Materials of Phillips Truss Head Machine Screws

Phillips Truss Head Machine Screws are available in various materials for different strength and environmental needs:

Surface Finishes

Specifications & Types

Phillips Truss Head Machine Screws are categorized by head type, thread, and drive style :

A. Standard Phillips Truss Head Machine Screw
Head: Wide, low-profile, slightly rounded with a flat bearing surface
Drive: Phillips (PH) recess (PH0, PH1, PH2, PH3)
Thread: Fully threaded (machine screw thread)
Sizes:
Diameter: #2 to #14 (imperial), M2 to M12 (metric)
Length: 1/4″ to 3″ (varies by application)

B. Self-Tapping Phillips Truss Head Screw
Thread: Sharp, self-drilling tip for metal/plastic
Used in: Sheet metal, automotive, electronics
C. Stainless Steel Phillips Truss Head Screw
Material: 304 or 316 stainless steel
Used in: Marine, medical, food-grade applications

Applications

Electronics & Appliances: Securing thin panels, circuit boards
Automotive: Fastening interior trim, dashboards, and plastic components
Sheet Metal Work: Joining thin metal sheets without pre-drilling
Plastic & Composite Materials: Assembling lightweight structures
HVAC & Electrical: Mounting fixtures, junction boxes

Real-World Examples

Electronics Assembly: M3 x 6mm zinc-plated truss head Phillips screws secure PCB mounts.
Automotive Trim: #8 x 1/2″ black oxide truss head Phillips screws attach dashboard panels.
Sheet Metal Fabrication: #10 x 3/4″ stainless steel truss head Phillips screws fasten HVAC ducting.
Plastic Enclosures: M4 x 12mm nylon truss head Phillips screws for lightweight assemblies.

Installation Tips

✔ Use the correct Phillips driver size (PH1, PH2, etc.) to avoid stripping.
✔ No countersinking needed (unlike flat head screws).
✔ Self-tapping versions can be used in thin metal/plastic without pre-drilling.