Machine Screw Truss Head ZP

Product Introduction

• Standard Name: Truss Head Machine Screw (Flat Head/Low Head Machine Screw).

• Common Names: Flat Head Machine Screw, Low Head Machine Screw, Electrogalvanized Flat Head Machine Screw.

• Product Definition: A specialized machine screw featuring a low-profile, large-diameter head. Its core design provides greater head contact area than standard round or pan heads without increasing height, enabling superior pressure distribution. This effectively prevents head sinking or surface damage during installation in thin plates or softer materials.

Machine Screw Truss Head ZP Key Features

• Truss Head Design: The wide, low, arched head provides a large bearing surface (larger than a pan head).

  Its slightly convex low profile is suitable for thin materials or applications requiring even pressure

  distribution.

• Zinc Plated (ZP): Provides basic rust protection and a bright silver finish, enhancing corrosion resistance,

  suitable for indoor or mildly humid environments.

• Drive Type: Commonly Phillips or combination slots, facilitating screwdriver operation and preventing

  slippage.

• Material and Strength: Commonly carbon steel, medium strength; precision threads, fully threaded design,

  conforming to standards such as DIN 967 and ISO 14583.

•  Advantages: Large bearing area, less likely to damage materials, economical and practical, aesthetically

  pleasing and discreet.

Working Principle

• Threaded Fit: The precision thread matches the nut or internal threaded hole, generating axial clamping

  force through rotation.

• Head Pressure Resistance: The truss head provides a wide contact surface, evenly distributing pressure

  and preventing material deformation or denting.

• Preload Generation: When torque is applied, the zinc plating reduces friction, improves efficiency, and

  provides corrosion protection.

• Installation Control: Precise force is applied using a screwdriver, avoiding overtightening and damage to

  components; the principle involves friction and mechanical interlocking.

Product Applications

• Electronics and Electrical Appliances: Secures panels, housings, or thin metal components; the large

  head protects the surface from denting.

• Mechanical Manufacturing: Assembles instrument, machine tool, or equipment covers; even pressure

  distribution enhances stability.

• Automotive and Aerospace: Interior trim or lightweight mounting; low profile suitable for

  space-constrained environments.

• Metalworking: Joins thin sheets or sheet metal; zinc plating is suitable for indoor environments.

• DIY and Repair: Universal fastening in everyday projects; economical and aesthetically pleasing.