Locking wire 3491552 is used on selected Hiab equipment to secure fasteners and prevent them from loosening during operation. If locking wire has been removed during maintenance or shows signs of corrosion or damage, it should be replaced with the correct Hiab part number to maintain safe and secure assembly. Compatibility Part number 3491552 is fitted to selected Hiab machines. Suitability depends on the crane model and serial number. If you are unsure whether this locking wire is correct for your equipment, contact us with the serial number and we will confirm compatibility before you order. Only commonly used parts are listed on our website. We can supply any Hiab parts UK customers require, including model specific fixings and retaining components identified by part number. If you cannot find the part you need, contact us with the serial number of your crane and details of the part required and we will help identify the correct item. Call: 01937 349222Email: [email protected]