Medeco Indoor/Outdoor 6 Pin Pa...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$232.00
$179.05
Medeco Medeco Indoor/Outdoor 6 Pin Padlock, 5/16" Shackle Diameter with Cylinder MED-5451500

Medeco Indoor/Outdoor 6 Pin Padlock, 5/16" Shackle Diameter with Cylinder

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Model: 5451500-00P
$232.00
$179.05

In Stock (leaves warehouse same day if ordered before 3pm ET)

$232.00
$179.05
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Medeco® System Series High Security Padlock – M3/M4 Technology, Indoor/Outdoor, 5/16" Shackle

The Medeco Padlock System Series offers a high-security solution for both indoor and outdoor environments, built to withstand the harshest physical attacks while delivering unmatched key control. Designed with M3 and M4 cylinder technologies, this padlock line is ideal for protecting assets where cut resistance, drill protection, and unauthorized key duplication prevention are critical.

Widely regarded as one of the strongest combination padlock alternatives, the System Series padlocks use boron alloy steel shackles for superior tensile strength and ductility—resisting cutting, pulling, and twisting attacks with industrial-grade performance.

Key Features

  • Medeco M4 high-security cylinder with utility patent and 3D key duplication protection

  • 6-pin configuration with rotating tumbler pin system—virtually pick-proof

  • Boron alloy steel shackle: resists cutting and enhances tensile strength

  • Hardened stainless steel inserts inside the cylinder defend against drilling and physical tampering

  • Shrouded shackle option available for increased protection

  • Key control: Patented keys can only be duplicated by authorized Medeco® service outlets, at your request

  • Available with Medeco Intelligent Key (electronic cylinders) and other technologies

Customization Options

  • Keyed alike, keyed different, or master keyed

  • Choose from key-retaining or non-key retaining

  • Available in 5/16" or 7/16" shackle diameters

  • Extended shackles offered for indoor/outdoor models

Applications

Perfect for securing:

  • Outdoor gates and perimeter fencing

  • Utility enclosures and industrial equipment

  • Cargo containers, trailer doors, and storage units

  • Retail back-of-house areas

  • High-security lockers and commercial buildings

Why It Stands Out

The Medeco padlock System Series is engineered with the same cylinder strength found in high-security deadbolts, delivering maximum protection against sophisticated threats. This makes it a top choice for anyone searching for the strongest combination padlock substitute with customizable keying options.

Technical Specifications

  • Material: Machined brass body with stainless steel inserts

  • Cylinder: M4/M3 mechanical or intelligent key options

  • Shackle: Boron alloy, 5/16” or 7/16” diameter

  • Finish: Weather-resistant for both indoor and outdoor use

Manufacturer Resources

Product Specs

Category:
Other / Miscellaneous Hardware
Product Group:
Other / Miscellaneous Hardware
Product Subgroup:
Padlocks
Product Type:
Padlocks
Subcategory:
Padlocks
Commercial/Residential:
Commercial
Series:
System Series
Shackle Width:
7/8"
Substrate:
Stainless Steel
Cylinder and Keyways:
6Pin
Tags:
medeco padlock, strongest combination padlock
Product Lockbody Color:
Black

Medeco 5451500-00P – Frequently Asked Questions

1) What makes this Medeco padlock different from standard padlocks?
This Medeco features a high-security 6-pin cylinder with unique angled cuts and rotating pins. Keys cannot be duplicated without authorization cards. The design resists picking, drilling, and bumping far better than conventional padlocks.
2) Is this padlock suitable for outdoor use?
Yes, this model is rated for both indoor and outdoor applications. The hardened steel shackle and body resist corrosion and weathering. The cylinder is designed to function reliably in various climate conditions.
3) What is the shackle clearance with a 5/16 inch diameter?
The 5/16 inch shackle diameter provides a good balance of strength and clearance for most applications. Verify your hasp or chain link opening accommodates this diameter. Check the specific shackle height and width dimensions for your installation requirements.
4) Can additional keys be made for this padlock?
Medeco keys require special authorization cards and can only be duplicated by authorized dealers. This prevents unauthorized key copying. Keep your authorization card secure and contact a Medeco dealer for additional keys.
5) What security grade does this padlock meet?
Medeco padlocks typically meet high-security standards for commercial and industrial use. The 6-pin cylinder and hardened components provide superior protection against common attack methods. Verify specific security ratings for your application requirements.
6) How do I maintain this padlock for long-term use?
Apply graphite lubricant to the keyway periodically. Avoid oil-based lubricants that attract dirt. Clean the body with mild soap and water. Exercise the lock regularly in outdoor installations to prevent binding from weather exposure.
7) Is this padlock rekeyable?
Medeco cylinders can typically be rekeyed by qualified locksmiths with proper equipment and authorization. This allows changing the key combination without replacing the entire padlock. Contact a Medeco dealer for rekeying services.
8) What applications work best with this padlock size?
This size works well for securing gates, storage containers, equipment trailers, and utility boxes. The 5/16 inch shackle fits most standard hasps and chain links. Consider larger shackles for thick gates or specialized applications.
9) Can this padlock be keyed alike with other Medeco locks?
Yes, Medeco locks can be keyed alike or arranged in master key systems when ordered together. This requires coordination during manufacturing or professional rekeying. Plan your keying requirements before ordering multiple locks.
10) How does the 6-pin cylinder compare to 5-pin versions?
The 6-pin cylinder provides additional security over 5-pin versions through more key combinations and increased pick resistance. The extra pin makes unauthorized entry more difficult while maintaining smooth operation with the proper key.
11) What should I do if the key becomes difficult to turn?
Apply graphite lubricant to the keyway and work the key gently. Avoid forcing the mechanism. If binding persists, the cylinder may need professional cleaning or adjustment. Contact a qualified locksmith familiar with Medeco locks.
How fast can I get the Medeco 5451500-00P delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Medeco 5451500-00P come with a warranty?
Absolutely. The Medeco 5451500-00P is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Medeco 5451500-00P?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Medeco 5451500-00P from ZenSupply?
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