Head Styles

Head Styles — Choosing the Right Fastener for Every Application

The Head Styles guide from Allfast Solutions NZ helps you understand the different shapes and functions of fastener heads. Each style serves a specific purpose, and knowing the difference ensures you select the right screw or bolt for your project.

Fasteners may look similar, but their head designs affect strength, torque, and appearance. By learning about head styles, you can improve both performance and finish — whether you’re assembling furniture, installing roofing, or managing large-scale construction work.

Our Head Styles page includes:

• Common types such as hex, pan, countersunk, and button heads

• Drive systems like Phillips, Torx, Pozi, and square drives

• Applications for structural, decorative, and mechanical uses

• Advantages of low-profile and high-torque designs

• Compatibility with different tools and materials

• Simple diagrams for quick visual comparison

Moreover, the guide explains how each head shape affects installation. For example, hex heads allow higher torque for heavy-duty fastening, while countersunk heads sit flush for a clean finish. In addition, it highlights corrosion-resistant coatings and how they interact with various materials such as timber, metal, and plastic.

At Allfast Solutions NZ, we believe choosing the right fastener head is just as important as selecting the right size or grade. Therefore, our resource is designed to help tradespeople, engineers, and DIY users work with precision and confidence.

For additional background on mechanical fastener standards and head specifications, visit the International Organization for Standardization (ISO). This reference outlines how head dimensions and tolerances are measured worldwide.

In summary, this Head Styles guide gives you the knowledge to choose correctly, install efficiently, and achieve the perfect finish — every time you fasten.

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