Does this lock have any harmful chemicals Prop 65

Don’t put it in your drink or cook with it, if it mixes into your drink or food it could make you sick but I believe the report said you’d have to do that 834 times to have a negative affect on you. But on a side note I read just the paper from the Prop 65 rule could make you violently sick if you eat all the paper in just one setting.

Is it for outdoor use?

It hasn't fared well for us. We have an older one which held up for about 3 years before needing to be replaced. The lifetime warranty allows you only one replacement, so it really isn't a lifetime warranty at all. If you live near the beach, consider yourself lucky if it works for 2-3 years. That said, it is for outdoor use, just expect to lubricate frequently especially after rain or if you live near saltwater.

What's the diameter of the shackle? I need to make sure it can fit through a hole in a security box.

5/16"http://www.allpadlocks.com/cgi-bin/ez-catalog/product_images.cgi?account=X380790;product_id=M178;image=images%2Fcatalog%2F178sketch.jpg

Lost the change key -- how to reset the combo without it?

you can just use a small screwdriver to push in and change the combo while doing so. The Key really just holds down the bar inside for you.

Alloy Steel Set Your Own Polished Combination Padlock Die Cast

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Description

🔐 Lock in your security, unlock your peace of mind.

COMPACT YET ROBUST DESIGN - 2-inch wide lock body fits perfectly on lockers, gates, and gym lockers without bulk.
SET YOUR OWN 4 DIGIT CODE - Thousands of unique combos for personalized security and zero key hassle.
EFFORTLESS COMBINATION RESET - Includes a change tool for quick, secure code updates—stay one step ahead.
WEATHERPROOF DIE CAST ALLOY BODY - Durable polished finish designed to brave rain, sun, and outdoor elements.
CUT RESISTANT HARDENED STEEL SHACKLE - Engineered to withstand cutting attempts, keeping your belongings safe.

The Master Lock 178D is a polished, die-cast alloy combination padlock featuring a customizable 4-digit code, hardened steel shackle for cut resistance, and weatherproof construction. Ideal for indoor and outdoor use on lockers, gates, and gym equipment, it offers durable, keyless security with easy reset functionality.

Specifications

ASIN	B0009V1WMA
Additional Features	Cut Resistant, Weather Resistant
Best Sellers Rank	#82,653 in Home Improvement ( See Top 100 in Home Improvement ) #116 in Combination Padlocks
Brand	Master Lock
Brand Name	Master Lock
Colour	Black
Connectivity Protocol	Wi-Fi
Controller Type	Combination control
Country of Publication	USA
Customer Reviews	4.6 out of 5 stars 13,938 Reviews
Included Components	1 padlock
Item Dimensions	33 x 51 x 84 Millimeters
Item Type Name	Set Your Own Combination Lock
Item Weight	0.3 Pounds
Item dimensions L x W x H	33 x 51 x 84 Millimeters
Lock Type	Combination Lock
Manufacturer	Master Lock
Manufacturer Part Number	FBA_178D
Manufacturer Warranty Description	no warranty available
Material	Alloy Steel
Material Type	Alloy Steel
Model Name	Set Your Own Combination Lock
Model Number	178D
Number of Pieces	1, 4, 8
Product Finish Type	Polished
Recommended Uses For Product	outdoor , indoor
Shape	Square
Special Feature	Cut Resistant , Weather Resistant
Style Name	Classic
UPC	354123436162

Reviews

A**I

26.02.2024

A**R

26.04.2026

$**D

4.08.2022

C**D

11.11.2023

D**N

12.12.2024

P**R

12.05.2022

S**A

13.08.2022

A**R

21.02.2019

R**D

7.04.2025

E**.

19.03.2024

R**O

10.02.2025

A**I

27.09.2025

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Alloy_Steel Set-Your-Own Polished Combination Padlock, Die-Cast, Black

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