Abus 83AL/45-300 S2 Blue Padlock Blue,Rekeyable Anodized Aluminum Padlock, Schlage C Keyway

The ABUS 83AL/45-300 S2 is a rekeyable anodized aluminum padlock rated at ABUS Security Level 8, finished in blue and fitted with a Schlage C keyway cylinder. The lock body is made from TITALIUM, ABUS's proprietary special aluminum alloy that delivers high security at significantly lower weight than brass. The 5/16-inch hardened special steel shackle carries NANO PROTECT coating for very high corrosion resistance, and the cylinder uses the patented Z-Bar mechanism for 2-in-1 key-retaining and non-key-retaining operation. The cylinder is removable and field-rekeyable. SKU: 83AL/45-300 S2 Blue.

What TITALIUM aluminum means for the 83AL/45 padlock body

TITALIUM is ABUS's proprietary special aluminum alloy developed specifically for padlock bodies that need the structural integrity of traditional brass at a fraction of the weight. The 83AL/45 body is anodized in blue, which provides a surface finish that resists scratching and corrosion independently of the TITALIUM base material. The blue finish also makes this padlock easy to identify in multi-padlock installations where color-coding is used to organize access by zone, department, or key group.

At Security Level 8, the 83AL/45-300 S2 sits in the upper range of the ABUS rekeyable padlock line, suited to securing high-value assets, equipment enclosures, grating covers, storage units, gates, tool containers, cellar windows, and switchboard panels where both attack resistance and corrosion resistance are required over the long term. For the complete ABUS Titalium padlock range in multiple body sizes and configurations, browse the ABUS Titalium padlocks catalog.

How the Schlage C keyway and S2 rekeying system work on this padlock

The 300 designation identifies this as the Schlage C keyway configuration. The Schlage C keyway is one of the most widely specified commercial key profiles in the United States, installed across door hardware in offices, schools, healthcare facilities, and institutional buildings. Fitting the 83AL/45-300 S2 with a Schlage C cylinder allows this padlock to be integrated into an existing Schlage C key system after the cylinder is rekeyed to the target key cuts.

The S2 designation means the cylinder uses a patented pinning window that allows it to be removed from the padlock body, repinned to a different key cut, and reinstalled without any other component of the padlock being affected. The body, shackle, and Z-Bar mechanism all remain in place during a rekey. No special tools are required beyond a standard rekeying kit compatible with Schlage C cylinders. For Schlage C-compatible key blanks and cylinder components, the cylinders, cores, and keys section covers the available options.

What the Z-Bar and NANO PROTECT shackle provide on the 83AL/45-300 S2

The Z-Bar is an ABUS-patented mechanism that converts the padlock between key-retaining and non-key-retaining operation within seconds and without tools. In key-retaining mode, the key cannot be withdrawn from the cylinder while the shackle is open, which prevents the key from being accidentally left in an unsecured padlock. In non-key-retaining mode, the key can be removed at any point regardless of shackle position. The mode can be changed at any time to suit different operational protocols at the same installation site.

The 5/16-inch hardened special steel shackle uses NANO PROTECT surface treatment, an ABUS corrosion barrier rated for outdoor, coastal, and high-humidity environments where standard steel shackle treatments degrade over time. The shackle can be changed in seconds without tools, and the 83AL/45 body accepts shackles in 1-inch, 2-inch, 3-inch, 4-inch, and 6-inch heights. For replacement shackles and ABUS accessories, the padlock parts and accessories catalog covers the available options.

How the 83AL/45 blue aluminum model compares to the brass 83/45-300 S2

The 83AL/45-300 S2 and the 83/45-300 S2 share the same 1-7/8-inch body width, 5/16-inch shackle diameter, Schlage C keyway, Z-Bar cylinder, and S2 rekeyable design. The key difference is the body material and finish. The 83/45-300 S2 uses a solid brass body that resists corrosion through the natural properties of the material. The 83AL/45-300 S2 uses a TITALIUM aluminum body that delivers comparable security at lower weight, with a blue anodized finish for color-coded identification. For the brass-body version in the same Schlage C keyway configuration, the ABUS 83/45-300 S2 brass padlock is also stocked. For the full ABUS rekeyable padlock range across all body types and keyway configurations, browse the ABUS padlocks catalog.

Confirm the Schlage C keyway is compatible with the existing key system and that the 5/16-inch shackle diameter fits the hasp or chain hardware before ordering. Two keys are included.