Metal Lock-In Plugs

metal lock-in plugsBuilt with sturdy design and a “Bulldog Grip” using a thick and serrated steel edge, our metal lock-in plugs are our most durable end cap option, providing a solid seal that eliminates the need for additional adhesive or stapling. If your job requires an end cap with superior seal and protection, our metal lock in plugs provide a sturdy, attractive option. Armbrust proudly offers our metal lock-in end caps in 38 standard and ready-to-order options in sizes that range from 1 ½” to 8”, and we have the capabilities to custom produce to your needs if your job requires an end cap that you can’t find here. Simply send your specifications and quantities and we can begin developing a solution specific to your application. We are proud to deliver the quality and attention that comes from having over 75 years of experience in the industry – place an order or contact us today and we’ll be happy to exceed your expectations!



Code Name Weight Price  
MP-15 Metal Lock-In Plugs 1 1/2” 0.00 $0.07
MP-125 Metal Lock-In Plugs 1 1/4” 0.00 $0.07
MP-1125 Metal Lock-In Plugs 1 1/8” 0.00 $0.06
MP-175 Metal Lock-In Plugs 1 3/4” 0.01 $0.08
MP-1375 Metal Lock-In Plugs 1 3/8” 0.00 $0.07
MP-1625 Metal Lock-In Plugs 1 5/8” 0.00 $0.07
MP-1875 Metal Lock-In Plugs 1 7/8” 0.01 $0.08
MP-1 Metal Lock-In Plugs 1” 0.00 $0.07
MP-25 Metal Lock-In Plugs 2 1/2” 0.03 $0.11
MP-225 Metal Lock-In Plugs 2 1/4” 0.02 $0.10
MP-2125 Metal Lock-In Plugs 2 1/8” 0.02 $0.09
MP-275 Metal Lock-In Plugs 2 3/4” 0.05 $0.13
MP-2375 Metal Lock-In Plugs 2 3/8” 0.03 $0.11
MP-2625 Metal Lock-In Plugs 2 5/8” 0.04 $0.13
MP-2 Metal Lock-In Plugs 2” 0.01 $0.09
MP-35 Metal Lock-In Plugs 3 1/2” 0.10 $0.18
MP-325 Metal Lock-In Plugs 3 1/4” 0.08 $0.16
MP-3125 Metal Lock-In Plugs 3 1/8” 0.06 $0.16
MP-375 Metal Lock-In Plugs 3 3/4” 0.18 $0.22
MP-3625 Metal Lock-In Plugs 3 5/8” 0.12 $0.19
MP-3875 Metal Lock-In Plugs 3 7/8” 0.22 $0.23
MP-3 Metal Lock-In Plugs 3” 0.06 $0.14
MP-075 Metal Lock-In Plugs 3/4” 0.00 $0.06
MP-45 Metal Lock-In Plugs 4 1/2” 0.45 $0.35
MP-425 Metal Lock-In Plugs 4 1/4” 0.36 $0.33
MP-4125 Metal Lock-In Plugs 4 1/8” 0.31 $0.31
MP-475 Metal Lock-In Plugs 4 3/4” 0.48 $0.36
MP-4 Metal Lock-In Plugs 4” 0.28 $0.29
MP-55 Metal Lock-In Plugs 5 1/2” 0.82 $0.45
MP-575 Metal Lock-In Plugs 5 3/4” 1.00 $0.49
MP-5375 Metal Lock-In Plugs 5 3/8” 0.82 $0.42
MP-5 Metal Lock-In Plugs 5” 0.59 $0.40
MP-65 Metal Lock-In Plugs 6 1/2” 1.66 $0.65
MP-625 Metal Lock-In Plugs 6 1/4” 1.59 $0.55
MP-6 Metal Lock-In Plugs 6” 1.20 $0.57
MP-7 Metal Lock-In Plugs 7” 1.55 $0.79
MP-0875 Metal Lock-In Plugs 7/8” 0.00 $0.06
MP-8 Metal Lock-In Plugs 8” 2.85 $0.83