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Pewag Viro "Panzer" 3/8" Security Chain Padlock - #4126

Pewag Viro "Panzer" 3/8" Security Chain Padlock - #4126Pewag Viro "Panzer" 3/8" Security Chain Padlock - #4126Pewag Viro "Panzer" 3/8" Security Chain Padlock - #4126Pewag Viro "Panzer" 3/8" Security Chain Padlock - #4126Pewag Viro "Panzer" 3/8" Security Chain Padlock - #4126
SKU: PW-4126MPN: 4126
  • USUALLY SHIPS: 1 - 2 Days
  • Made in Italy
Purchase over $500 of Pewag products and use Promo Code: PEWAG10 to receive a 10% discount off your order total! *Restrictions may apply

Product Description

What It Is
A solid, high-security padlock made to work with 3/8" (10mm) square security chain. It's a solid piece of brass and hardened steel that leaves an impression of both quality and durability.

Why You Need It
Because a good security chain is only as good as the lock you secure it with. This lock's pins are completely shrouded and even protected by the security chain. Thieves look for the quick and easy target, but with this lock, there are no shortcuts! No bolt cutter access!

How Big Is It?
Well, it weighs 1.92 lbs (875 g) and is a handful for anyone with average hands. It's a great balance of feeling and looking really solid without being too big or bulky. You can easily slip this into your backpack, purse, etc. and tote it without weighing yourself down. We know you will be impressed!

How Secure Is It?
This is a true, high-security padlock that was hand selected to work with 10mm square chain. Thieves hate these locks due to the high-quality materials used and their exclusive shape that makes them practically impossible to grip with traditional cutters or other common tools. The body is solid forged brass with 3mm thick case-hardened, tempered, copper, nickel and chrome plated steel main armor. The bolt is also case-hardened, tempered, copper, nickel and chrome plated steel rotating resistant to attack dead-bolt. 7-pin plug, pull-resistant, with case-hardened, tempered, copper, nickel and chrome plated steel anti-drill plate. Supplied with three Viro Top Security profile nickel-plated brass keys. We know that's a lot of tech speak, but the point is that this is a true security lock. We know you will be satisfied with its inherent durability and toughness, not to mention its looks (there is exceptional attention to detail).

View the compatibility chart below to see which of our security chains work with this padlock.

Pewag Galvanized 9/32"


Pewag Galvanized 3/8"


Pewag Galvanized 1/2"


Laclede Lockdown 9/32"


Laclede Lockdown 3/8"


Laclede Lockdown 1/2"


Peerless Blue Hex 7/16"


Abus 10KS 3/8"

All Sizes

Abus 12KS 1/2"

All Sizes
View Chain & Padlock Selection Guide
* If ordering only one padlock, choose "Keyed Different". If ordering multiple padlocks, and you want them all to take the same key, choose "Keyed Alike".


Chain Diameter
Overall Length
Overall Height
Pin Diameter
Weight (lbs)

Questions & Answers

7 Questions & 7 Answers
from Texas asked:
December 10, 2020
Can I reorder the same lock with it keyed the same as the one I ordered before?
1 Answer
Possibly.  Just give us a call @ 503-399-7037 with your key code and we'll see if we have a match.
Submitted by: WRS on December 11, 2020

from Kansas City, KS asked:
April 8, 2020
What does keyed alike mean?  There is only one key hole and it comes with three keys.
1 Answer
"Keyed Alike" only applies when buying more than one lock, and you wish for all locks to use the same key.  This is more common for our commercial/business customers that want to deploy new padlocks across an entire facility, etc., and they want all padlocks to take the same key.
Submitted by: WRS on April 8, 2020

from Joplin, MO asked:
February 24, 2019

Can links other than the end links of the Pewag chain be closed up in this lock?  I will need to use at least one link on the chain that is not an end link.

1 Answer
Unfortunately no, it is close, but a mid-link will not fit due to the tight individual pockets on this padlock.
Submitted by: WRS on February 25, 2019

from USA asked:
April 18, 2018
Does this fit the 7mm Pewag chain? The pin diameter and the 7mm internal dimension are both listed as 0.39".
1 Answer
According to the fit chart, the small 7mm chain does not fit this padlock. You can view the fit chart by clicking on the "Product Notes" tab.
Submitted by: WRS on April 20, 2018

from USA asked:
March 10, 2018
Will this lock work with the 1/2" Galv square link chain?
1 Answer
No, this lock does not fit the Pewag 12mm or Laclede 13mm chain we offer.  We recommend either the Viro "Euromonolith" Padlock or the Laclede Padlock.
Submitted by: WRS on March 10, 2018

from KY asked:
January 24, 2018
After looking at the Viro PDF page, the lock shown on your webpage shows a Viro with independent lock-bolts. They also have a single bolt version that locks both links of the chain. I just want to know for sure the lock pictured on your site is the one I am ordering.
1 Answer
Yes, if you click here to view the PDF page, you will see at the bottom we are offering #4126. We also have a dimensional drawing of the lock on the page as well. You are indeed ordering a lock with two individual pockets.
Submitted by: Westech Rigging Supply on January 24, 2018

from KY asked:
January 24, 2018
I am purchasing some Pewag chain from Westech and need 2-3 Viro "Panzer" 3/8" Security Chain padlocks. Can I get the locks all keyed alike?
1 Answer
Yes, please click here to see the #4126 lock keyed alike.
Submitted by: Westech Rigging Supply on January 24, 2018

Product Reviews

9 Reviews
78% (7)
11% (1)
11% (1)
0% (0)
0% (0)
89% Recommend this product (8 of 9 responses)
By Paul
This thing is a Beast
October 23, 2021
The headline says it all, once locked on a chain you can not reach anything to cut it.
By C T.
Houston, TX
Works well with the 3/8" Pewag Chain
July 9, 2021
If you spend money to buy a security chain, then you should get a heavy duty lock to go with the chain. This padlock is stamped: "Made in Italy". Hopefully the quality control is better than products from China. The lock fits snuggly on the 3/8" Pewag chain. I can't comment if paired with other chain sizes or brands. It's easier to put on the end links, than the middle link.
By Tommy
2 Thumbs Up
April 29, 2021
This lock is amazing, I love it. Shipping was fast.
By George
Very Solid
December 10, 2020
Lock mechanism and durability very solid. I've not tested break in, but it does look to be unbreakable.
  • Very Durable
  • Expensive
By Jeff
E. Texas
Heavy Duty Security Lock
December 3, 2020
Sturdy lock, impossible to get to shackle when locked to chain.
  • Cannot loop chain around and lock anywhere except to end of chain. Looks like I am going to have to use a less secure lock for that purpose. Cannot recommend for that purpose.
By Paul
Great Lock
November 5, 2020
I'm using this lock in combination with a Laclede 3/8" square security chain to secure my trailer. I run the chain around my axle and then through my wheel. I think it really increases the security of my trailer.
By Ran
Columbia, MO
Lock has no Equal
October 11, 2020
Panzer lock is of the highest quality I have encountered in a very long time. I recommend this product line to anyone concerned with protection of the property.
  • Materials and construction top notch.
  • None.
By Mac
A Quality Peace of Mind
April 17, 2020
When camping in our RV, we needed a chain and lock combo that would deter easy theft of two generators and a few other valuables. This 3/8" lock/chain combo is substantial and adds a little peace of mind when we're away from the campsite. Very pleased.
  • All good
  • None
Best Lock on the Market
April 13, 2019
I brought this lock and there is no doubt it is well made and built to last.
  • Well made easy to use
  • None



Safety Notice

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Although Westech Rigging Supply strives to manufacture and sell the highest quality rigging and safety gear, use of the gear is dangerous if not used correctly by competent trained professionals. Westech Rigging Supply disclaims any liability resulting from the misuse of its rigging and safety gear. Please take a moment to more thoroughly review our disclaimer.

Westech Rigging Supply rigging and safety gear is only intended to be used by competent trained professionals. Misuse of the rigging and safety gear can result in serious injury up to and including loss of life. As such, Westech Rigging Supply disclaims liability for any misuse or incorrect product selection by our customers.

Rigging and safety gear purchased from Westech Rigging Supply should be used in strict accordance with all industry and OSHA standards. At no time should rigging or safety gear be used beyond its certified load ratings (aka Working Load Limits). Normal wear and tear should be expected with use of rigging and safety gear; therefore, all gear should be thoroughly inspected before each and every use. Worn or unsafe rigging and safety gear should never be used.