

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The 3M 7010384839 is a hard hat guide arms assembly designed to integrate hearing protection earmuffs with compatible hard hat systems. This replacement assembly provides the structural arm components that attach earmuff cups to a hard hat slot-mount bracket, allowing workers to swing earmuffs into position when needed and stow them when not in use. It is a serviceable replacement part intended to restore function to an existing hard hat-mounted hearing protection setup. Typical installers include safety coordinators and field supervisors managing personal protective equipment on industrial or construction sites.
This guide arms assembly is suited for use in occupational environments where combined head and hearing protection is required. It is commonly found on construction sites, manufacturing facilities, and industrial plants where slot-style hard hat attachments are standard. The assembly is designed as a replacement component for earmuff-to-hard-hat mounting systems, restoring the pivoting and positioning function of a worn or damaged original part.
Designed as a replacement guide arms assembly for 3M Peltor hard hat-mounted earmuff systems that use slot-style hard hat attachment brackets.
Installation of this guide arms assembly should be performed by a qualified safety equipment technician or site safety coordinator. Ensure the earmuff assembly is fully detached from the hard hat bracket before replacing the guide arms. Follow the manufacturer's instructions for proper attachment and verify that all pivot points move freely and seat securely before returning the assembly to service. Inspect the hard hat slot mount for wear or damage at the time of replacement.
Thanks for subscribing!
This email has been registered!