10 Best Master Lock Shackles
for October 2021

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

1
9.6
SCORE
Master Lock 175DLH Set Your Own Combination Padlock 2-1/4 in. Shackle Brass Finish

Master Lock 175DLH Set Your Own Combination Padlock 2-1/4 in. Shackle Brass Finish

by MASTER LOCK COMPANY LLC
What We like

Set your own four digit combination lock for easy combination recall; combination change tool included

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Product Features

  • Indoor and outdoor lock is best used as a gate lock or shed lock for protection and security from theft; extra long shackle for application flexibility
  • Combo lock is constructed with a solid body for strength and weatherability, hardened steel shackle for cut resistance
  • 2 in. (51mm) wide lock body; 5/16 in. (8mm) diameter shackle with 2-1/4 in. (57mm) length, 1 in. (25mm) width
  • Shackle is preset to open on 0-0-0-0; see user manual for combination reset instructions

2 in. (51mm) wide lock body; 5/16 in. (8mm) diameter shackle with 2-1/4 in. (57mm) length, 1 in. (25mm) width Shackle is preset to open on 0-0-0-0; see user manual for combination reset instructions Combo lock is constructed with a solid body for strength and weatherability, hardened steel shackle for cut resistance Indoor and outdoor lock is best used as a gate lock or shed lock for protection and security from theft; extra long shackle for application flexibility

2
9.5
SCORE
6 Pack Master Lock 1KA-2006 1-3/4

6 Pack Master Lock 1KA-2006 1-3/4" Wide Keyed Alike Commercial Grade Laminated Padlock with 15/16" Shackle Height

Keyed to 2006 Key Code

by Master Lock Company
What We like

4-pin cylinder helps prevent picking. The dual locking levers provide extra pry resistance

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Product Features

  • Keyed Alike - order multiple locks to open with the same key or order to match other locks with the W1 cylinder
  • 15/16in (24mm) tall, 5/16in (8mm) diameter hardened steel shackle for superior cut resistance
  • This Pack contains (6 pcs.) of Padlock and (12 pcs.) of keys
  • 1-3/4" (44mm) wide laminated steel pin tumbler padlock for superior strength

15/16in (24mm) tall, 5/16in (8mm) diameter hardened steel shackle for superior cut resistance This pack contains (6 pcs.) of padlock and (12 pcs.) of keys Keyed alike - order multiple locks to open with the same key or order to match other locks with the w1 cylinder 1-3/4" (44mm) wide laminated steel pin tumbler padlock for superior strength

3
9.5
SCORE
Master Lock M175XDLF Heavy Duty Outdoor Combination Lock, 1-1/2 In. Shackle, Brass Finish

Master Lock M175XDLF Heavy Duty Outdoor Combination Lock

1-1/2 In. Shackle, Brass Finish

by MASTER LOCK COMPANY LLC
What We like

Tough-Cut octagonal boron-carbide shackle is 50% harder than hardened steel; Roller pin cylinder provides maximum pick and pry resistance

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Product Features

  • Heavy duty outdoor lock; Maximum security combination lock is best used as a gate lock, shed lock, or storage lock
  • Padlock is constructed with a zinc body and reinforced body bumper for strength and reliability; Shackle seal and covered dials for superior weather protection; One directional dial feature for low light applications
  • 2-1/4 inch (57 millimeter) wide lock body; 3/8 inch (10 millimeter) diameter shackle with 1-1/2 inch (38 millimeter) length, 15/16 inch (24 millimeter) width; Extended shackle for application flexibility
  • Set your own four digit combination lock for easy combination recall; No combination change tool required

2-1/4 inch (57 millimeter) wide lock body; 3/8 inch (10 millimeter) diameter shackle with 1-1/2 inch (38 millimeter) length, 15/16 inch (24 millimeter) width; extended shackle for application flexibility Heavy duty outdoor lock; maximum security combination lock is best used as a gate lock, shed lock, or storage lock Padlock is constructed with a zinc body and reinforced body bumper for strength and reliability; shackle seal and covered dials for superior weather protection; one directional dial feature for low light applications Set your own four digit combination lock for easy combination recall; no combination change tool required

4
9.5
SCORE
Master Lock M736XKAD Magnum Heavy Duty Solid Steel Hidden Shackle Padlock with Key, High Security Hasp

Master Lock M736XKAD Magnum Heavy Duty Solid Steel Hidden Shackle Padlock with Key

High Security Hasp

by Master Lock
What We like

Five-pin cylinder provides maximum pick resistance while key retaining safeguard ensures padlock is not left unlocked

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Product Features

  • Hasp Length is 9-1/16 in. (23 cm), Lock body diameter is 2-7/8 in. (73 mm), 3/8 in. carriage bolts recommended for installation (bolts not included)
  • Indoor and outdoor padlock with key; lock and hasp is best used for moving trucks, vans, and buildings with sliding doors
  • Key lock is made of zinc plated solid steel for maximum strength, reliability and corrosion resistance, hidden shackle design eliminates shackle exposure and protects against bolt cutter attacks
  • Includes one padlock and hasp, two keys

Key lock is made of zinc plated solid steel for maximum strength, reliability and corrosion resistance, hidden shackle design eliminates shackle exposure and protects against bolt cutter attacks Includes one padlock and hasp, two keys Indoor and outdoor padlock with key; lock and hasp is best used for moving trucks, vans, and buildings with sliding doors Hasp length is 9-1/16 in. (23 cm), lock body diameter is 2-7/8 in. (73 mm), 3/8 in. carriage bolts recommended for installation (bolts not included)

5
8.8
SCORE
Master Lock #101 3-1/4

Master Lock #101 3-1/4"L Shackle Padlock

by MASTER LOCK CO
What We like

MASTER LOCK CO

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Product Features

  • Master Lock #101 3-1/4"L Shackle Padlock

Master lock #101 3-1/4"l shackle padlock

6
8.6
SCORE
American / Master Lock - (2) Keyed Alike Solid Steel, High Security, Hidden Shackle Padlocks, w/ Bumpstop Technology A2010NKA-2

American / Master Lock

(2) Keyed Alike Solid Steel, High Security, Hidden Shackle Padlocks, w/ Bumpstop Technology A2010NKA-2

by Master Lock
What We like

The 2-7/8" wide A2010 features a "flat back" that is tapped and threaded to allow for attachment to either high security hasp A801 or A802.

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Product Features

  • American Lock is owned by Master Lock so you can expect the same high quality. BumpStop Advanced Cylinder Technology. (see explanation in the description below).
  • ATTENTION: If you order two 2-packs they will NOT necessarily be keyed the same. To ensure you get two 2-packs keyed alike, you must order the 4-pack.
  • Two (2) elite, high security 6-pin cylinder ProSeries Padlocks designed for Commercial/Industrial applications. Locks are keyed alike w/ 4 total keys.

American lock is owned by Master Lock so you can expect the same high quality. bumpstop advanced cylinder technology. (see explanation in the description below). Two (2) elite, high security 6-pin cylinder proseries padlocks designed for commercial/industrial applications. locks are keyed alike w/ 4 total keys. Attention: if you order two 2-packs they will not necessarily be keyed the same. to ensure you get two 2-packs keyed alike, you must order the 4-pack.

7
8.5
SCORE
Master Lock 5420D Set Your Own Combination Portable Lock Box with Adjustable Shackle, 6 Key Capacity

Master Lock 5420D Set Your Own Combination Portable Lock Box with Adjustable Shackle

6 Key Capacity

by The Master Lock Company
What We like

Set your own 4 digit combination lock box for easy combination recall, set and reset your combination allowing thousands of personalized combination code options

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Product Features

  • Adjustable shackle cinches lock box tightly and securely to most lever, ball, biscuit, and tulip door knob styles
  • For indoor and outdoor use, vinyl coated shackle and molded bumper prevent scratching, metal body construction for durability, weather cover protects combination dials from outdoor elements
  • 2-7/8 inches wide lock body, 3/8 inches diameter shackle with 1-3/4 inches MAX length, 3/4 inches minimum length, 1-13/32 inches width, internal dimensions: 4-3/16 inches height, 2-3/8 inches width, 1 inches depth

2-7/8 inches wide lock body, 3/8 inches diameter shackle with 1-3/4 inches max length, 3/4 inches minimum length, 1-13/32 inches width, internal dimensions: 4-3/16 inches height, 2-3/8 inches width, 1 inches depth Adjustable shackle cinches lock box tightly and securely to most lever, ball, biscuit, and tulip door knob styles For indoor and outdoor use, vinyl coated shackle and molded bumper prevent scratching, metal body construction for durability, weather cover protects combination dials from outdoor elements

8
8.5
SCORE
Master Lock Pro Series Hidden Shackle Padlocks, Keyed Alike 6271NKA-2 w/BumpStop Technology

Master Lock Pro Series Hidden Shackle Padlocks

Keyed Alike 6271NKA-2 w/BumpStop Technology

by Master Lock
What We like

This listing is for 2 keyed alike locks - 4 keys included. The hardened diecast zinc body is strong, durable and resists corrosion. Pro Series Padlocks are designed for Commercial/Industrial applications. Ideal for transportation, vending, gates, and industrial uses.

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Product Features

  • These Locks FEATURE BumpStop Advanced Cylinder Technology (For explanation see more product details below).
  • DIMENSIONS (see image) - A) 3/8 (10mm), B) 19/32 (15mm), C) 1-23/32 (44mm) Width 2-7/8 (73mm)
  • BOLT CUTTER TOUGH - fully shielded hardened boron alloy shackle offers impossible to cut and pry resistance features.

Bolt cutter tough - fully shielded hardened boron alloy shackle offers impossible to cut and pry resistance features. These locks feature bumpstop advanced cylinder technology (for explanation see more product details below). Dimensions (see image) - a) 3/8 (10mm), b) 19/32 (15mm), c) 1-23/32 (44mm) width 2-7/8 (73mm)

9
8.5
SCORE
Master Lock 6271KA 2 Pack 2-7/8in. ProSeries Reinforced Hidden Shackle Rekeyable Pin Tumbler Keyed Alike Padlock, Chrome

Master Lock 6271KA 2 Pack 2-7/8in. ProSeries Reinforced Hidden Shackle Rekeyable Pin Tumbler Keyed Alike Padlock

Chrome

by Master Lock
What We like

Lock body conceals shackle! "Bolt Cutter Tough" fully shielded 3/8 (9mm) diameter reinforced Zinc Die-Cast shackle offers impossible to cut and pry resistance features (see More Product Details below).

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Product Features

  • ATTENTION: If you order two 2-packs they will NOT necessarily be keyed the same. To ensure you get two 2-packs keyed alike, you must order the 4-pack.
  • Hardened boron alloy shackle for superior cut resistance. Solid iron shackle shroud resists harsh physical attacks. Dual ball bearing locking mechanism resists pulling and prying.
  • Two (2) high security ProSeries Padlocks designed for Commercial/Industrial applications. Locks are keyed alike w/ 4 total keys.

Attention: if you order two 2-packs they will not necessarily be keyed the same. to ensure you get two 2-packs keyed alike, you must order the 4-pack. Two (2) high security proseries padlocks designed for commercial/industrial applications. locks are keyed alike w/ 4 total keys. Hardened boron alloy shackle for superior cut resistance. solid iron shackle shroud resists harsh physical attacks. dual ball bearing locking mechanism resists pulling and prying.

10
7.2
SCORE
Master Lock Hasp/Hidden Shackle Padlock Combo 770-6271

Master Lock Hasp/Hidden Shackle Padlock Combo 770-6271

by Master Lock
What We like

Lock: High security 6-pin hardened die-cast steel body is strong, durable and resists corrosion.

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Product Features

  • Mounting hardware not included. Six 3/8 carriage bolts (length determined by application), washers and nuts required per unit.
  • This lock is also available with the BumpStop Technology. Search 770-6271N in Amazons search window.
  • "Bolt Cutter Tough" fully shielded hardened steel shackle offers impossible to cut and pry resistance features.
  • Hasp: Solid steel powder coated construction. To install: Use hasp as mounting template. A 1/4" gap is recommended for most applications.

Hasp: solid steel powder coated construction. to install: use hasp as mounting template. a 1/4" gap is recommended for most applications. Mounting hardware not included. six 3/8 carriage bolts (length determined by application), washers and nuts required per unit. "bolt cutter tough" fully shielded hardened steel shackle offers impossible to cut and pry resistance features. This lock is also available with the bumpstop technology. search 770-6271n in amazons search window.

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