Master Lock 410GRN No. 410 Lightweight Xenoy Safety Lockout Padlock 6 Pin Green Sold as 6/Box. Designed by safety directors, specifically for OSHA lockout compliance--1 3/4" tall. Durable, lightweight, non-conductive Xenoy lock body. Customize on-site with permanent, write-on labels. Compliance with OSHA "One Employee, One Lock, One Key" directive.