盤頭梅花桶螺帽

冷镦加工是一种少切削或无切削的压力加工新工艺
金屬。它是一種利用金屬在下列因素作用下產生塑性變形的加工方法
外力作用下，在模具的幫助下，重新分配和轉移金屬的體積，以形成
所需的零件或坯料。冷镦工艺最适合生产标准的
螺栓、螺絲、螺帽、鉚釘和銷等緊固件

Pan Head Plum 桶狀螺帽 – Overview

A pan head plum barrel nut (also called a 十字銷螺帽 或 barrel nut) is a specialized fastener designed for creating strong, hidden joints in furniture, machinery, and structural assemblies. It combines a pan head screw with a cylindrical (barrel-shaped) nut, allowing perpendicular fastening for sturdy connections.

主要特性：

1. Pan Head Design

• 形狀： Slightly rounded top with a flat underside for even load distribution.

• 驅動器類型： Typically features a slotted, Phillips, or hex drive 用於安裝。

• Low Profile: Provides a semi-flush finish when tightened.

2. Barrel Nut (Plum Barrel) Body

• Cylindrical Shape: Resembles a small metal barrel with a threaded hole perpendicular to its length.

• 內螺紋： Accommodates a mating screw or bolt that passes through an adjoining piece.

• 材質： Usually made from steel (zinc-plated or stainless), brass, or aluminum for durability.

3. Function & Mechanism

• 用於 cross-dowel jointing, where a screw is driven sideways into the barrel nut, creating a strong right-angle connection.

• 的 pan head screw clamps components together, while the barrel nut provides a hidden anchoring point inside a pre-drilled hole.

Installation Steps (Typical Use):

1. Drill a Hole – Create a perpendicular bore for the barrel nut.

2. Insert the Barrel Nut – Place it inside the hole, aligning the internal threads.

3. Drive the Pan Head Screw – Tighten the screw through the adjoining piece into the barrel nut.