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About the Master Lock 311 Covered Laminated Padlock The difference between a good lock and the wrong lock becomes apparent when the weather turns. The Master Lock 311 Covered Laminated Padlock puts a weather-resistant thermoplastic shell over a laminated steel body. The shell helps keep moisture and grime away from the components that matter most. Job sites, storage units, and outdoor fences all get a lock that shows up ready. Master Lock 311 A 1-9/16in (40mm) wide laminated steel body delivers serious resistance to physical attack. The black weather-resistant thermoplastic shell keeps moisture, dirt, and grime from compromising performance over time. The 9/32 in (7mm) diameter hardened steel shackle measures 1-1/16 in (27mm) long and resists cutting and sawing attempts. Dual ball bearing locking tackles prying and hammering, and the 4-pin cylinder actively resists picking. A Limited Lifetime Warranty backs the whole package. Teams managing multiple access points can take advantage of the Keyed Alike option, so one key covers every lock in the set. Browse our padlocks if your application calls for corrosion resistance in marine or coastal conditions. 311 Covered Laminated Padlock Product Highlights Model # 311, 311KA Body Width 1-9/16in (40mm) Shackle Length 1-1/16in (27mm) Shackle Width 5/8in (16mm) Shackle Diameter 9/32in (7mm) Key Options Keyed Different, Keyed Alike Click HERE for additional key information. Color Options Black Black weather-resistant thermoplastic shell provides outdoor protection against moisture, dirt, and grime 1-9/16in (40mm) Wide laminated steel body for superior strength Hardened steel shackle for extra cut resistance Dual ball bearing locking for maximum pry resistance 4-pin cylinder helps prevent picking Best Used For: Severe Use Outdoor Storage & Fences Self-Storage Units & Lockers Tools, Job Boxes, & Gang Boxes From a single padlock to a fully keyed-alike system across multiple locations, 1st-in-Padlocks has the inventory and the know-how to get it sorted. Our product lineup spans padlocks, Diskus® hardware, hasps, safes, cables, and chains from Master Lock, American Lock, ABUS, SentrySafe, Pacific Lock, Trimax, and The Club. Contact us, and let our team put together the right keyed configuration for your operation.
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🇺🇸 Ship from USA · On Agora since 2026
$15.95