MCS Lock Tabs

20 products — part of all Lock Tabs

MCS lock tabs give Harley-Davidson mechanics and builders the correct tab washers needed to prevent critical fasteners from backing off under the relentless vibration of a running V-twin engine. Lock tabs are a positive mechanical locking device — after torquing the fastener, the tab is bent up against the flat of the nut or bolt head, physically preventing rotation in either direction. They are specified by Harley-Davidson at primary, transmission and engine locations where the consequences of a loosened fastener are serious, and they must be renewed each time a fastener is removed rather than reused. MCS supply lock tabs to Harley-Davidson specifications covering the main Big Twin applications where tab locking is factory-required. Iron City Motorcycles, an authorised Harley-Davidson dealer in Leeds, carries MCS lock tabs alongside a full range of fastener and drivetrain hardware. Browse the full MCS Lock Tabs range below.