TAB Fasteners M4.2 Pozi Drive Tapping Screw 20mm Washer for Tail Lamp

Description

Product Overview

The TAB Fasteners M4.2 Pozi Drive tapping screw is a specialized fastener designed for the automotive industry, specifically targeting headlight and tail lamp adjustment applications. Manufactured by TAB Fasteners, a reputable supplier of precision fasteners, this component combines a compact form factor with robust performance characteristics, making it suitable for both professional repair shops and hobbyist vehicle restorations.

Measuring 20mm in overall length and weighing approximately 4 ounces, the screw features a head diameter of 11mm and a round washer head that distributes load evenly across the mounting surface. The thread profile follows a M4.2-1.41 pitch, providing a secure engagement with compatible threaded holes while minimizing the risk of stripping during installation. The product dimensions of 1 x 1 x 1 inches ensure that the screw can be accommodated within tight engine bays and confined lighting housings without compromising structural integrity.

The Pozi-Drive (also known as Pozidriv) design of the screw head offers superior torque transfer compared to standard Phillips heads, reducing cam-out and allowing for more accurate tightening. The round washer head, often referred to as a Pozi-Drive tapping screw with washer, adds an extra layer of stability by preventing the screw from pulling through softer substrates. This combination of drive type and washer integration is particularly advantageous in automotive lighting assemblies where vibration and thermal cycling are common stressors.

Compatibility extends to a wide range of tail lamp assemblies across multiple vehicle makes and models. The screw is listed as a top seller in the Automotive Headlight Adjusting Screws category, ranking #9 within its subcategory and #93,346 overall in the automotive department. Customer reviews average 4.3 out of 5 stars, reflecting consistent satisfaction with fit, durability, and ease of use. The product’s ASIN B0C8YLRZ7S provides a reliable reference for online ordering and inventory management.

TAB Fasteners employs rigorous quality control processes, including material certification, dimensional inspection, and torque testing, to ensure each screw meets industry standards. The hardened steel construction resists corrosion and wear, extending the service life of the fastener even in harsh environmental conditions. This commitment to quality aligns with the expectations of automotive professionals who demand reliable components for safety‑critical applications.

Usage

The M4.2 Pozi Drive tapping screw is intended for installation in tail lamp assemblies where precise alignment of the headlight or taillight is required. Typical use cases include adjusting the position of the lamp housing, securing the lamp bracket to the vehicle frame, and replacing worn or damaged fasteners during routine maintenance or after collision repair. The screw’s 20mm length provides sufficient engagement depth while maintaining a low profile that does not interfere with surrounding components.

Installation is straightforward for technicians familiar with standard automotive fastener tools. A Pozi-Drive screwdriver or bit is recommended to achieve the correct torque without damaging the head. The round washer head eliminates the need for a separate washer part, simplifying the assembly process and reducing part count. This feature is especially valuable in high‑volume service centers where time efficiency translates directly to productivity.

The screw performs well in environments subject to vibration, temperature fluctuations, and exposure to road salts. Its hardened steel composition and washer design help prevent loosening over time, ensuring that the tail lamp remains securely positioned throughout the vehicle’s service life. The product is also suitable for DIY enthusiasts who are restoring classic cars or customizing lighting setups, offering a reliable solution that meets OEM specifications.

Why Choose Us

TAB Fasteners has a long history of supplying high‑quality fasteners to the automotive sector, and the M4.2 Pozi Drive tapping screw exemplifies that heritage. Each screw is produced from hardened steel that meets or exceeds ASTM standards for tensile strength and corrosion resistance. The manufacturing process includes heat treatment and surface coating to further enhance durability under demanding conditions.

The company’s commitment to precision is reflected in the tight tolerances maintained on the thread pitch and head dimensions. This precision ensures consistent performance across batches, reducing the likelihood of fit issues that can arise with generic fasteners. TAB Fasteners also provides comprehensive technical documentation, including dimensional drawings and material certifications, to assist engineers and service technicians in selecting the appropriate component for their applications.

Customer support is available to address any inquiries related to product compatibility, installation guidance, or warranty coverage. TAB Fasteners offers a standard warranty that covers material defects, providing peace of mind for purchasers who rely on the screw for critical lighting adjustments. The combination of engineered design, rigorous testing, and responsive support makes this fastener a dependable choice for automotive lighting projects.

Key Features

• Pozi‑Drive head delivers higher torque efficiency and reduces cam‑out during installation.
• Integrated round washer head eliminates the need for separate washers, simplifying assembly.
• 20mm length and 11mm head diameter provide a secure fit for a variety of tail lamp brackets.
• Hardened steel construction resists corrosion, vibration, and thermal cycling for long‑term reliability.
• Backed by TAB Fasteners’ technical support and warranty for added customer confidence.

FAQ

What vehicle models are compatible with this screw?

The M4.2 Pozi Drive tapping screw is compatible with most vehicles that use standard tail lamp mounting brackets with a 20mm screw length and an 11mm head diameter. It is commonly found in European, Asian, and North American models that follow the ISO metric thread standards. For exact fit, consult the vehicle’s service manual or compare the existing fastener dimensions.

Can this screw be used for headlamp adjustments as well?

Yes, the screw’s design is suitable for both tail lamp and headlamp adjustment applications. The Pozi‑Drive head provides precise torque control, which is essential for aligning headlamp optics. Ensure that the mounting hole matches the M4.2‑1.41 thread profile before installation.

Is a separate washer required when installing this screw?

No separate washer is needed. The screw features an integrated round washer head that distributes load across the mounting surface, providing the same function as a traditional washer while reducing part count and installation time.

What tools are recommended for installing this fastener?

A Pozi‑Drive screwdriver or bit is recommended to engage the screw head properly. Using the correct driver size helps achieve the specified torque and prevents damage to the head. A torque wrench set to the manufacturer’s recommended value (typically 2‑3 Nm) ensures a secure yet non‑over‑tightened installation.

What warranty does TAB Fasteners provide for this product?

TAB Fasteners offers a standard limited warranty that covers material defects for a period of one year from the date of purchase. The warranty does not cover damage caused by improper installation, misuse, or external factors such as corrosion from non‑standard chemicals.