Name: Little Pan Head Six Lobe Self Tapping Screw
Brand: Jiaxing Zhongke Metal Technology Co.,Ltd.

Specification: 5.0-2.8*70

Material: 1022

Surface Treatment: Dacromet

Product Introduction

The Little Pan Head Six Lobe Self-Tapping Screw is designed for metal fastening applications requiring a low-profile head with positive drive engagement and corrosion resistance. The little pan head configuration provides a flat underside with a lower profile than standard pan heads, offering accurate clamping force distribution while maintaining a compact appearance suitable for confined spaces and aesthetic applications. The six-lobe drive enables positive torque transmission with reduced cam-out risk during installation, providing reliable engagement with standard six-lobe tools. These screws cut mating threads in pre-drilled holes, providing secure engagement without requiring a separate tapping operation. Manufactured from 1022 carbon steel with Dacromet surface treatment, this screw provides strength and high corrosion resistance for demanding environments. The 5.0-2.8 thread specification with 70mm length offers extended engagement for structural connections and heavy-duty metal assemblies.

Core Advantages

Little Pan Head Design

Low-profile head provides accurate clamping force distribution with compact appearance suitable for confined spaces.

Six-Lobe Drive

Positive torque transmission with reduced cam-out risk during installation for reliable drive engagement.

Self-Tapping Thread

Cuts mating threads in pre-drilled holes, providing secure engagement without requiring a separate tapping operation.

1022 Carbon Steel

Provides strength for general metal fastening applications with appropriate surface treatment.

Dacromet Coating

Provides high corrosion resistance with extended salt spray protection for outdoor and industrial applications.

Extended Length

70mm length provides extended engagement for structural connections and heavy-duty metal assemblies.

Product Features

Little pan head configuration Low-profile head provides accurate clamping pressure with compact appearance suitable for confined spaces and aesthetic applications.

Six-lobe drive Positive torque transmission with reduced cam-out risk during installation, compatible with standard six-lobe tools for reliable engagement.

Self-tapping thread Cuts mating threads in pre-drilled holes, providing secure engagement without requiring a separate tapping operation.

1022 carbon steel material Provides strength for general metal fastening applications with appropriate surface treatment.

Dacromet surface treatment Offers high corrosion resistance with salt spray protection suitable for outdoor and industrial environments.

5.0-2.8 thread specification Metric thread configuration provides consistent performance for structural connections and heavy-duty metal assemblies.

70mm length Extended length provides engagement for structural connections and heavy-duty metal assemblies.

Application Scenarios

Confined space assemblies

Aesthetic metal connections

Equipment enclosures

Automotive components

Industrial machinery

Structural steel connections

Outdoor metal assemblies

Heavy-duty fabrications

This little pan head six-lobe self-tapping screw is deployed in metal fastening applications requiring a low-profile head with positive drive engagement and corrosion resistance. Applications include confined space assemblies where standard pan heads may not fit, aesthetic metal connections where appearance is important, equipment enclosures, automotive components, industrial machinery, structural steel connections, outdoor metal assemblies, and heavy-duty fabrications where the little pan head provides a compact profile, the six-lobe drive enables positive engagement, and the Dacromet coating ensures long-term corrosion protection.

Common Questions and Solutions

What are the advantages of the little pan head design?

The little pan head provides a lower profile than standard pan heads while maintaining accurate clamping force distribution. This compact design is suitable for confined spaces where standard head profiles cannot be accommodated and offers a clean appearance for visible applications.

What is the recommended six-lobe tool size for this screw?

Select a six-lobe driver that matches the head size specified for the 5.0-2.8 thread. Refer to the product specification for the exact six-lobe size required for installation.

What is the recommended pilot hole size for this screw?

The pilot hole size for the 5.0-2.8 self-tapping screw varies based on material thickness and hardness. Refer to the technical datasheet for recommended pilot hole diameter to ensure proper thread engagement and prevent material damage or thread stripping.

What is the Dacromet coating and what are its benefits?

Dacromet is a water-based zinc flake coating that provides high corrosion resistance with extended salt spray protection. It offers an environmentally friendly alternative to conventional plating processes and is suitable for outdoor and industrial applications requiring long-term corrosion protection.

Is this screw suitable for outdoor applications?

Yes. The 1022 carbon steel combined with Dacromet coating provides corrosion resistance for outdoor applications. The compact head profile also helps prevent snagging in exposed installations.

What is the recommended installation speed for this screw?

Install at controlled speeds to prevent thread galling and ensure proper thread formation. Use torque-controlled drivers to prevent over-tightening when the little pan head seats against the workpiece surface.

Installation Considerations

Select the correct six-lobe driver size that matches the screw head recess to ensure positive engagement and prevent drive wear during installation.

Drill pilot holes to the recommended diameter for the 5.0-2.8 thread size and material thickness to ensure proper thread engagement.

Use torque-controlled installation tools to prevent over-driving. The little pan head should seat against the workpiece surface without damaging the head or surrounding material.

Apply appropriate spindle speed to prevent thread galling; excessive speed may cause thread damage or thermal buildup.

Ensure perpendicular alignment between screw axis and workpiece surface to prevent cross-threading and ensure proper engagement.

The Dacromet coating provides corrosion resistance. Handle screws with clean gloves to maintain coating integrity and prevent contamination that could affect corrosion performance.