Master Lock Pro Series Hidden Shackle Padlocks Keyed Alike

Proper Fitment: To ensure the right fit, measure the hasp/latch on your trailer door. The provided schematic illustrates the size dimensions. Additionally, CHECK the depth of the hole on the hasp. If the center of the hole is more than 13/16 (20mm) from the edge, the pin will not engage, and the depth on the lock would be too shallow. Latches are sometimes poorly manufactured, with holes carelessly placed off-center, leading to fitment issues. You can modify the hasp if necessary.

Robust Protection: These locks offer ideal protection against bolt cutter attacks. The extra-heavy-duty 2-7/8" wide padlocks are suitable for all outdoor applications, allowing the use of multiple locks with a single key. Each lock comes with two keys, providing a total of eight keys with the purchase of this 4-pack.

Zinc Die-Cast Advantages: For countless decorative and functional applications, no other material and process can match the properties and economics of zinc die-casting. Zinc alloys provide exceptional toughness, with significantly higher impact resistance than cast aluminum alloys, plastics, and grey cast iron. They offer high strengths (up to 60,000 psi) and superior elongation, enabling strong designs and formability for bending, crimping, and riveting operations. Zinc alloys are also non-sparking, making them suitable for hazardous location applications such as coal mines, tankers, and refineries.

ProSeries Padlocks: The four (4) high-security ProSeries Padlocks are designed for commercial and industrial applications. The locks are keyed alike, with a total of eight keys provided. The 2-7/8" (73mm) wide reinforced zinc die-cast lock body offers exceptional strength and durability. These locks are ideal for transportation, vending, and many other applications.

Fitment Considerations: Ensure these locks will work for your specific needs by reviewing the provided product details.

Keying Consistency: If you order two 4-packs, they will not necessarily be keyed the same. To ensure you receive two 4-packs keyed alike, you must order the 8-pack.

Shackle Dimensions: Refer to the image for the shackle dimensions: A: 3/8in (9mm), B: 19/32in (15mm), C: 1-23/32in (44mm). The lock body conceals the shackle, providing a fully shielded 3/8 (9mm) diameter hardened boron alloy shackle that offers impressive cut and pry resistance.

High-Security Features: The re-keyable 6-pin cylinder with spool pins is virtually impossible to pick, ensuring high security. These locks also come with a lifetime guarantee.

Additional Option: This lock is also available with the BumpStop Technology. Search for 6271NKA in Amazon's search window to explore this alternative.

product information: