M6x18 Zinc Plated Button Head Self-Tapping Screws Phillips Drive

Type B Button Head Self-Tappers Zinc Plated Sheet Metal & Electronics Phillips Drive Blunt Point

Reliable button head self-tapping screws with Type B blunt point for sheet metal & plastic. Phillips socket drive, zinc plated steel. No pre-drill needed. Ideal for enclosures, brackets & DIY. M3, M4, M5 sizes.

Achieve clean, low-profile fastening in sheet metal and plastic assemblies with our **Button Head Self-Tapping Screws featuring a Type B (Blunt) Point**. Designed for direct thread-forming into **pre-punched or pre-drilled holes in thin materials**, the blunt end with tapered starting threads ensures strong engagement without pushing material aside or deforming thin sheets. The **low-profile button head** provides a smooth, rounded finish, reducing snagging, while the **internal hex socket drive** allows for high torque application and tool accessibility in confined spaces. Zinc plating offers essential corrosion protection for indoor and general industrial use.

Primary Uses & Applications:

* Sheet metal fabrication (electrical enclosures, control boxes, brackets).
* Electronics assembly (PCB mounts, server racks, component brackets).
* Joining plastic housings & components (ABS, nylon, polycarbonate).
* HVAC ducting & equipment assembly.
* Automotive interior trim & accessory mounting.
* Machinery guards & covers.
* General DIY projects involving thin metal or plastic.

Surface Treatment/Finishes:
* **Zinc Plating (Yellow Chromate):** Standard finish offering good corrosion resistance for indoor and protected environments. Yellow color aids visibility.
* **Zinc Plating (Clear/White Chromate):** Alternative for a brighter, less visible finish. Slightly lower corrosion resistance than yellow.
* **Black Oxide:** Mild corrosion resistance and dark appearance for reduced glare.

How to Use:

1. **Prepare Hole:** **A pilot hole is REQUIRED.** Drill a hole slightly smaller than the screw's **minor diameter** (core diameter - approx. 70-85% of nominal shank diameter) in the top material. Hole size is critical for Type B performance.
2. **Align:** Position materials. Insert screw through the top material hole into the base material.
3. **Drive:** Insert the **correct size hex key** (Allen wrench) or hex bit into the socket. Apply firm pressure and drive the screw. The Type B blunt point will engage the hole edges and **cut clean mating threads** into the base material.
4. **Tighten:** Continue driving until the button head seats firmly against the top material surface. **Avoid over-tightening**, which can strip the formed threads, especially in plastic.

Dongguan Guanbiao Hardware Products Co., Ltd., established in 2013, is a screw hardware processing factory integrating R & D, production and sales, focusing on electronic and electrical appliances, computer radiator, communication equipment, lighting, motor, motor, medical equipment, sports equipment, auto parts, baby stroller accessories and other industries. Its main products include all kinds of iron, stainless steel, copper, aluminum and alloy Precision small screws, spring screws, loose screws, stainless steel screws, step screws, plum blossom screws, slender screws, anti-theft screws, non-standard customized screws, stainless steel rivets, shafts, pins, CNC parts and stamping parts. The first mock exam the second mock exam is two punch, two die four punch, three die six punch, four die four punch, six die six punch, die closing machine, part forming machine, automatic lathe, CNC lathe and so on, and the diameter is 1mm-20mm, the length is 1mm-300mm.

The company introduced imported automation equipment, combined with mature technology and precision equipment, to ensure product quality, control quality from the source, and adhere to technological innovation.

Our business philosophy is "integrity, innovation, efficiency, win-win", your satisfaction is our eternal pursuit, looking forward to become your sincere partner!    wechat:+8613423026460