The BEST 9K is the toughest cylindrical lock, built to deliver dependable use and superior security in a wide range of applications. What sets the 9K apart is a low-maintenance design that protects critical components from the damage that comes with every day use and abuse. That translates to a lower cost of ownership over time since the BEST 9K lock requires significantly less maintenance and lasts longer overall. With proven Grade 1 security, easy core interchangeability and a broad array of styles and finishes, the BEST 9K fits exactly where you need it.TypeTitleURLbrochure/sales-material9K Series Brochurehttps://dvwi9lnoau63q.cloudfront.net/best/brochure/9Kseries_WEB.pdfcatalog9K Series Heavy Duty Cylindrical Locks Cataloghttps://dvwi9lnoau63q.cloudfront.net/best/catalogs/BEST_9K-Series-Catalog_2021.pdfCylindrical Adaptations Cataloghttps://dvwi9lnoau63q.cloudfront.net/best/catalogs/Cylindrical_Adaptations_Catalog.pdffaqs9K FAQhttps://dvwi9lnoau63q.cloudfront.net/best/miscellaneous/9K_FAQ.pdfinstallation-instructions93K 95K Key in Knob Cylinders Installation instructionshttps://dvwi9lnoau63q.cloudfront.net/best/installation/T56093b_-_Installation_instructions_for_93K_95K_Key-in-Knob_Cylinders.pdf9K Installation Instructionshttps://dvwi9lnoau63q.cloudfront.net/best/installation/T56075D_-_Installation_Instructions_for_9K_Cylindrical_Locks.pdf9K/C Function Cam Positioning Installation Instructionshttps://dvwi9lnoau63q.cloudfront.net/best/installation/T56094_-_9K_C_Function_Cam_Positioning_Instructions.pdf9K/G IN Function Cam Positioning Installation Instructionshttps://dvwi9lnoau63q.cloudfront.net/best/installation/T56095_-_9K_G_IN_Function_Cam_Positioning_Instructions.pdf9K/H/HJ Function Key Installation Instructionshttps://dvwi9lnoau63q.cloudfront.net/best/installation/T56096_-_9K_H_HJ_Function_Key_Instructions.pdfCylindrical Installation Instructionshttps://dvwi9lnoau63q.cloudfront.net/best/installation/T80919_-_Correction__to_Cylindrical_Installation_Instructio