8Pack 3.2 in Strong Round Base Magnet 100LBS+ - Heavy Duty Mounts

In this review the EilxMag 8-pack 3.2 in round base magnets are examined for users who need dependable, removable mounts for flags, signs, or accessories. The bottom line: these mounts stand out for their industrial-grade magnetic performance, reliably holding loads and resisting outdoor conditions without drilling. For truck owners, workshop technicians, or DIYers who want a reusable mounting solution, the kit provides strong adhesion plus a bolted option for vibration-prone applications.

Key Features

• Extra-strong ceramic magnet: Each 3.2 in round magnet is designed to withstand vertical forces exceeding 100LBS, offering secure attachment for oversize load flags and similar gear.
• Weather-resistant housing: Chrome steel shells protect the magnet from corrosion and harsh outdoor exposure, extending service life in wet or salty environments.
• High temperature tolerance: The magnets and housing tolerate temperatures up to 400F, making them suitable for near-heat applications when kept within that limit.
• Dual-mode installation: Use the strong double-sided magnetic contact for quick placement or the included bolts and nuts for a permanent, vibration-resistant fix.
• Complete mounting kit: The package includes 8 M6 bolts, nuts, washers and wing nuts so users can assemble flag holders or swap to other accessories without needing extra parts.

Who It's For

The kit is ideal for truck and trailer owners who need to mount safety flags, banners or temporary signage without drilling, and for workshop users who want movable mounting points for lights or cameras. The strong magnetic hold and corrosion-resistant shell make it a practical choice for outdoor use and transport.

Those who need ultra-high-temperature resistance above 400F, or who must attach to non-metal surfaces, should look elsewhere or plan for an alternate mounting adapter, since the magnets require a ferrous surface and have a specified maximum operating temperature.

Pros & Cons

Pros

• Very strong hold that exceeds 100LBS in vertical force, giving confidence for heavy flags and accessories.
• Durable chrome steel housing resists rust and weather for reliable outdoor performance.
• Included hardware-M6 bolts, nuts, washers and wing nuts-enables quick, tool-free assembly and secure bolted installation.
• Flexible use: magnetic quick-attach or bolted fixation adapts to different needs and environments.

Cons

• Requires a ferrous mounting surface; will not adhere to non-metal materials without adapters.
• Maximum operating temperature of 400F limits placement very near engine exhausts or other extreme heat sources.

Specifications

Package	8 magnets with mounting hardware
Magnet diameter	3.2 in round base
Rated hold	100LBS+ vertical force
Hardware included	8 M6 bolts, 8 nuts, 8 washers, 8 wing nuts
Housing material	Chrome steel, corrosion-resistant
Max operating temperature	400F (200C)

Our Verdict

The EilxMag 8-pack 3.2 in magnets are a solid, practical choice for anyone needing removable yet secure mounts for flags, signs or accessories on metal surfaces. The combination of strong ceramic magnets, corrosion-resistant housing and included M6 hardware delivers good value for users who want both quick magnetic attachment and an option for bolted fixation in vibration-prone situations.

Frequently Asked Questions

Can these magnets be used on a trailer roof?
They work on ferrous metal roofs; ensure the surface is clean and flat for maximum contact and use the bolt option for added security on rough roads.

Will the magnets demagnetize near vehicle engines?
Keep them away from direct engine exhausts and surfaces hotter than 400F to avoid demagnetization or damage.

Are additional tools required to install?
No: wing nuts allow tool-free tightening for most setups, though a wrench can be used for a firmer bolt torque if desired.