Securlec Machine Screw Zp M4x40mm 2pk

Securlec Machine Screws – Zinc Plated M4 x 40mm | Pack of 2

Precision-Engineered Screws for Electrical and General Fixing – Corrosion-Resistant Zinc Plated Finish

The Securlec M4 x 40mm Machine Screws are designed for secure, long-lasting fastening in electrical, industrial, and general-purpose applications. Manufactured to high standards and coated with a zinc plated (ZP) finish, these screws offer reliable corrosion resistance, durability, and compatibility with a variety of materials including metal and plastic.

With an M4 thread diameter and 40mm length, they are ideal for use with metal back boxes, mounting electrical faceplates, and for other precision fixings where strength and fit are essential. Packaged in a convenient set of two, they’re ideal for both professional electricians and DIY users.

Product Overview

Product Type: Machine Screws

Thread Size: M4 (4mm diameter)

Length: 40mm

Head Type: Typically countersunk or pan (not specified – assumed general-purpose)

Material: Steel

Finish: Zinc Plated (ZP) – corrosion-resistant

Pack Quantity: 2 screws

Boxed Dimensions:

Width: 12.5cm

Height: 15.0cm

Depth: 1.0cm

Boxed Weight: 10g

Key Features

✅ Standard M4 x 40mm Size

Widely used for fixing sockets, switches, pattress boxes, and other components to flush or surface-mounted back boxes. Suitable for applications requiring a longer reach than standard 25mm or 30mm screws.

✅ Zinc Plated for Corrosion Resistance

The zinc coating protects the screws against rust and oxidation, making them suitable for indoor use in kitchens, bathrooms, garages, and utility spaces where humidity may be present.

✅ Universal Fit

Compatible with a wide range of metal or plastic back boxes and accessories that accept M4 screws. The threads are manufactured to standard tolerance for a secure and vibration-resistant fit.

✅ Convenient Pack of 2

Perfect for replacements or when only a small quantity is needed. A practical choice for minor repairs, finishing installations, or keeping spares in your toolbox.

Typical Applications

Mounting electrical sockets and switches

Fixing front plates to metal back boxes

Securing faceplates in flush or surface boxes

General electrical installation

DIY and light industrial assembly tasks

Installation Tips

Ensure the receiving thread (e.g., in a metal back box) is clear of debris or paint for smooth threading.

Do not overtighten to prevent stripping or damaging the faceplate or box.

Use a compatible screwdriver (usually Phillips or slotted) appropriate for the screw head type.

If resistance is high, back out and retap to avoid cross-threading.

Frequently Asked Questions (FAQs)

Q1: Are these compatible with standard UK back boxes?
A: Yes. These are standard M4 threaded machine screws commonly used in UK electrical installations for fixing accessories to back boxes.

Q2: Are they suitable for outdoor use?
A: These are zinc plated for corrosion resistance and suitable for indoor use. For outdoor or high-moisture environments, stainless steel screws may be preferred.

Q3: What kind of screwdriver do I need?
A: The required screwdriver will depend on the head type (not specified). Most M4 machine screws are either slotted, crosshead (Phillips), or Pozidriv.

Q4: Can they be cut to a shorter length if needed?
A: Yes. These screws can be trimmed using a hacksaw or screw cutter if used in shallow boxes or where excess length interferes with wiring.

Why Choose Securlec M4 x 40mm Machine Screws?

Trusted for electrical and utility work, Securlec machine screws combine reliability, corrosion resistance, and precision machining. The zinc-plated finish and standard M4 threading make them a go-to solution for professionals and homeowners seeking high-quality fixings that last.