Reliable 6 Lobe Pan Head Self Tapping Screws

When you buy from xiaoguo, you get precision-engineered quality: the structure of the solid Hexalobular pan head self tapping screws consists of four parts: the head, the driving groove, the thread, and the tip, each designed for maximum durability.

6‑Lobe

If you apply too much force when tightening a regular cross-slot, the screwdriver may "pop out" and scratch the slot surface. The 6-Lobe design features six deep pits in the shape of petals. Once the screwdriver is inserted, it gets stuck on all four sides and will not slide even when you try to apply maximum force. In those situations where a lot of force is required for tightening, the 6-Lobe design is much more reliable than the cross-slot.

pan head

The head is a flat circular disc. When tightened, it directly presses against the surface of the workpiece. There is no need to make a pilot hole as in the case of a countersunk head. When used on thin iron sheets or plastic shells, the contact area is large, and it will not press out holes in the material. Moreover, the head is exposed, making disassembly and assembly convenient.

Coarse self-tapping threads

The pitch of the threads is wide and deep. One advantage of a wide pitch is that it allows for faster threading, higher efficiency, and is suitable for batch assembly.

Conical tip

The tail is pointed. After being inserted into the guide hole, it will automatically align itself, and the reliable 6 Lobe pan head self tapping screws are not prone to being twisted.

Material Introduction

The common materials for reliable 6 Lobe pan head self tapping screws can be classified into two categories: carbon steel and stainless steel.

Carbon steel

The most commonly used and highly cost-effective.

Strength grade: 4.8 grade or 8.8 grade.

Heat treatment: Surface hardness: HV 450–650; Core hardness: HV 300–400. Hard surface, tough core, wear-resistant threads and not prone to breakage.

Surface treatment (must be done; otherwise, it will rust):

Indoor electrical wiring is galvanized.

Outdoor hot-dip galvanization.

Choose Dacromet for high corrosion resistance.

The blackening/phosphating process is only suitable for indoor dry environments. It has a low cost but poor rust prevention properties.

Stainless steel

No coating, corrosion-resistant

Performance: Tensile strength approximately 700 MPa, hardness approximately 300 HV.

Surface: Natural passivation, no need for coating. A dense oxide film forms on the surface, providing rust prevention through the material itself.

Applicable environments: The A2 reliable 6 Lobe pan head self tapping screws is suitable for indoor damp environments and ordinary outdoor areas; the A4 screw is suitable for coastal regions, chemical plants, and areas in contact with seawater.

Other materials

Bronze: Used for decoration, resistant to rust but with low strength and unable to bear weight.

Aluminum alloy: Lightweight, with very low strength, used only for temporary fixation or non-load-bearing purposes.

Titanium alloy: Extremely lightweight, highly corrosion-resistant, and expensive, used in high-end equipment.