Q1: What are the differences between KD, KA, KDMK, and KAMK?
A: These terms describe how the keys work with your padlock sets:
KD (Keyed Different): Each padlock has its own unique key. One key cannot open another lock in the set. (Most common for OSHA individual safety).
KA (Keyed Alike): All padlocks in a set share the same key. One key opens every lock in that group.
KDMK (Keyed Different + Master Key): Each lock is unique (KD), but a Master Key can open all of them. Ideal for supervisors.
KAMK (Keyed Alike + Master Key): Locks are grouped in KA sets, and a Master Key opens all locks across all groups.
Q2: Which system is required for OSHA compliance?
A: OSHA’s "one employee, one lock, one key" rule generally points to the KD (Keyed Different) system. This ensures that no worker can accidentally remove another worker's lock. However, KDMK is also widely used by safety managers to allow for emergency administrative access while maintaining individual accountability.
Q3: When should I choose a KA (Keyed Alike) system?
A: KA is best for a single worker who needs to use multiple locks to isolate several energy points on one machine. Instead of carrying 10 different keys, they only need one. Note: KA sets should never be shared between different employees.
Q4: What is the benefit of a Master Key (MK) system?
A: The Master Key (KDMK/KAMK) is a "Supervisor Key." It allows a designated safety manager to remove a lock in an emergency (e.g., if an employee leaves the site with their key). It significantly improves management efficiency during large-scale facility maintenance.
Q5: Can I get custom laser engraving to match my KD/KA system?
A: Yes. At BOZZYS, we provide laser engraving services. We can engrave matching ID codes on both the padlock body and the key. This makes it easy to identify which key belongs to which lock, especially in complex KDMK or KAMK setups.
Q6: How do I order a specific system for my 6-Pack or 39-Pack Kit?
A: Most of our standard kits come as KD (Keyed Different). If you require KA, KDMK, or KAMK configurations, please specify your requirements in the order notes or contact our support team for a customized safety solution.