Maypole Strongbox Hitch Lock for Trailers The Maypole Strongbox Hitch Lock fits most ALKO, ALBE, Winterhoff, Steelpress, Knott and other original open handled hitch types with a straight draw bar. This hitch lock helps prevents theft of trailers. It has an anti-drill design and anti-prising lip to keep your trailer protected. Applications for the Trailer Hitch Lock: ALKO AK270 & AK161 AK160A/B AK300A Steelpress ZSK-1300C/E/H/K ZSK-1700B/C/D/E ZSK-2000B/C BC-3000.1A/B/C/D Knott KK14-A/B/C K20-A/B Suitable for use with most braked and unbraked hitches on drawbars of up to 50mm. -------------------------- IMPORTANT: Note: Not suitable for raised hitches, hitches fitted with a skid or those with a delta mounting. Warning: Do not tow with hitchlock fitted Plug keepers may need to be removed before use. -------------------------- Other Features: Lightweight and user friendly touring or storage product High security lock with anti-drill feature Ideal for caravans and trailers with pressed steel couplings Fits a straight drawbar rather than an A frame Helps prevent parking theft when fitted hitched Strongbox features an anti prising lip Ideal for light trailers Lock: 7 pin RPT security with hardened anti-drill centre The box contains Hitchlock body Hitchlock front plate Lock with three keys Fitting instructions and warranty card