Product introduction

　

Round flat head / Raised countersunk head

Round flat screw has a flatter appearance than pan head screw and is rounder than flat screw, making them suitable for areas that are exposed or frequently touched by people. Round flat screw is mostly used in parts that have been countersunk. The seating of the tapered part fits perfectly with the countersunk surface, resulting in the head's round shape protruding from the flat contact surface, which may also be used from a design perspective.

Flat head / Countersunk head

Flat head screw is a screw with a flat head and a conical seat surface. It is used when you want to smoothen the surface of the product being fastened and the head of the screw, or to improve the appearance. When using it, it is necessary to perform a counterbore on the fastening surface. It is used for fastening door hinges as a typical application,

Truss head

Truss screw has a large head diameter and a flat, semicircular shape when viewed from the side. Because the surface area of the seat surface is wide, it can distribute torque over a wider area, reducing damage to the base material during tightening. Therefore, it is used when fixing soft materials like plastic or thin metal sheets, in addition, sometimes used to improve aesthetic appearance.

Binding head

Binding screw has a trapezoidal head shape with a round top. Head height is lower compared to pan head and a smaller head diameter than truss head, positioning between pan head and truss head in terms of shape. Due to its distinct appearance compared to other heads, it is also used for design and identification purposes.