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Master No. 6121 Weather Tough Pro Series Padlock

Master Lock

Customize Your Master Lock 6121 Series Padlock!

- Select Keying Option: Keyed Different (6121KD), Keyed Alike (6121KA), Master Keyed (6121MK), or Master Keyed & Keyed Alike (6121KAMK).
- Select Shackle Option: Standard (1-1/8" Shackle), LF (1-1/2" Shackle), LJ (2-1/2" Shackle) or LN (5-5/8" Shackle).
- Select Bump Stop Option: Non-Bump Stop (Standard) or Bump Stop (N).
- Special Ordering: Click here for Master Lock Special Order Page.
- Delivery: The 
Master Lock 6121 Series Padlock is in stock and available to ship. See below for additional Delivery Information.

Total Price: $16.17 - $26.90
$ 16.17 In stock

6121D - Weather Tough Pro Series Rekeyable Padlock by Master Lock

Master Lock's Pro Series Weather Tough padlocks was designed for use in harsh outdoor conditions. Features a plastic cover that protects the heavy steel body from adverse weather conditions, including dirt, mud, grime, rain, and ice. The rekeyable cylinder can be swapped out in a matter of seconds, allowing this padlock to be used at multiple job sites or key systems.

Features and Benefits:

- Ideal for harsh outdoor conditions - exclusive Pro Series® Weather Tough® cover protects lock from water, ice, dirt and grime.
- ProSeries® Padlocks are designed for Commercial/Industrial applications.
- 2-1/8" (54mm) heavy steel body withstands physical attack.
- 5/16" (8mm) diameter hardened boron alloy shackle for maximum cut resistance.
- Dual ball locking mechanism resists pulling and prying.
- High security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick.

Keying Option: Choose between Keyed Different (6121KD), Keyed Alike (6121KA), Master Keyed (6121MK), and Master Keyed & Keyed Alike (6121KAMK). All No. 6121 Padlocks come with 2 keys (all Master Keys are Sold Separate and available under "Related Items").
Shackle Option: Select Shackle Size -- 1-1/8" (Standard), 1-1/2" (LF), 2-1/2" (LJ) & 5-5/8" (LN).

Master Key: All No. 6121 Master Key padlocks (6121MK) will come with 2 keys but Master Keys are Sold Separate. Please Click here to order additional master keys, or order Master Keys through the above "Related Items" tab.

Delivery: All Master Lock KA + KD (6121KA & KD) Padlocks are in stock in all shackle sizes. Please allow 2-week lead time for all Master Keyed padlocks.

Stock Key Numbers:

6121KA-10G015       6121KA-10G021        6121KA-11G043       6121NKA-10G015
6121NKA-10G021     6121NKA-11G043      6121KALF-10G021    6121KALF-11G043
6121NKALF-10G021  6121NKALF-11G043  6121KALJ-10G015    6121KALJ-10G021
6121KALJ-11G043    6121NKALJ-10G015   6121NKALJ-10G021  6121NKALJ-11G043

Special Ordering: Click here for Master Lock 6121 Series Special Order Page.

If you require the No. 6121 Series Padlock (MK & KAMK) keyed to an existing key number please leave a note in the Comments Box upon checkout (you can also immediately reply to the Confirmation E-mail with special order instructions).

* Please note all Master Lock special orders have at least a 2-week factory lead time.

Average Rating

5 out of 5

Based on 1 review

100% would recommend this item to a friend.

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5 out of 5

Tough, solid and easy to use


I have used lighter duty locks for years that only lasted a few years before the weather ruined them. These locks have features to help keep the weather out while still being easy to use. They have larger keys than the lighter duty locks which give more leverage for turning the key if you have old, tired hands like mine. The locks are very solid in your hand and you can just tell by their feel they are a quality product that will last a lifetime. I am an individual and not associated with any company, my opinions are my very own.

Would you recommend this product to a friend? Yes

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