ABUS 41/45 Laminated Steel Padlock with Key, 5/16" Shackle diam., 1 59/64" Width

The 41/45 has a 5/16 inch diameter shackle with 25/32 inch of horizontal clearance and 29/32 inch of vertical clearance inside the shackle. So the opening on your hasp, staple or chain link needs to pass a 5/16 inch round shackle, and the shackle will span up to 25/32 inch of material side to side and 29/32 inch top to bottom. If your hasp staple is thicker than that, or you are locking through a chain with heavy links, measure before you order, the clearance is where padlocks of this size run out of room.

Yes. The 41/45 is orderable three ways on keying: KA keyed alike, so every lock in the batch opens with one key, KD keyed different, so each lock has its own key, and MK master keyed, where each lock keeps its own change key and a single master opens them all. For a property manager or maintenance team, keyed alike is the usual pick for one crew and one key ring, master keyed is what you want when tenants or techs hold their own key but a supervisor needs override.

Laminated bodies like the 41/45 are riveted steel plates, and the 41/45 concentrates its rivets in the outer laminates so the rivet heads cannot be chipped off. That construction is the workhorse choice for gates, fences and general MRO use at average theft risk. Go solid body instead when the lock lives in a wash-down, marine or chemical environment, where a solid stainless body like the Medeco 521 G8R weather-tight padlock, or a brass body like the Medeco 5260, holds up better than plated steel. Go solid body too when you need a removable or interchangeable core to tie the padlock into a facility keying system, which is what the Sargent 60-858-2 removable core padlock is for.

No. The 41/45 uses its own ABUS precision pin tumbler cylinder and is keyed within ABUS, so it will not take a Schlage or Sargent cylinder or key. If the requirement is one facility key system across doors and padlocks, order a padlock built on that manufacturer's cylinder instead: the Schlage KS23D/KS23F brass padlock, which also runs a 5/16 inch shackle, or on the Sargent side the 758 key retaining or 858 non-key-retaining padlock, or the 60-858-2 for removable core. Use the 41/45 where the padlocks can stand on their own key system, which is most gate, yard and storage work.

The Schlage KS23D/KS23F brass padlock carries the same 5/16 inch shackle diameter as the ABUS 41/45. The difference is body construction: the 41/45 uses a laminated steel body with ETERNA coating on each laminate, while the KS23D/KS23F uses a brass body. Both take a 5/16 inch shackle, so a hasp or chain sized for one accepts the other.

The Sargent 60-858-2 is a removable core padlock with a 2 inch stainless steel shackle, so the cylinder pulls and the lock joins an existing core-based keying program. The ABUS 41/45 uses a precision pin tumbler cylinder built into the lock and is ordered as keyed alike, keyed different, or master keyed rather than re-cored in the field.

The Medeco 521 G8R is a weather-tight padlock with a solid stainless steel body, which is the construction to specify where the lock sits in direct spray or salt air. The ABUS 41/45 addresses corrosion differently, with ETERNA coating applied to each laminate and the laminates individually treated, and its hardened shackle is double bolted.

The ABUS 41/45 is self-locking, meaning it locks without the key by pushing the shackle down. For an opening where the key must be retained in the cylinder while the lock is open, the Sargent 758 is a key retaining padlock in a US4 satin brass finish. The Sargent 858 is the non-key-retaining version, which releases the key when unlocked.

No. The ABUS 41/45 is a mechanical padlock with a precision pin tumbler cylinder, keyed alike, keyed different, or master keyed. For electronic credential control on an indoor or outdoor padlock, the Medeco 54515G XT is an electronic indoor/outdoor padlock in the System Series, non-key retaining, with a 5/16 inch shackle diameter. That is the same shackle diameter as the 41/45, so the hasp does not have to change if the keying method does.

It is built for it. Every laminate carries an ETERNA coating and the laminates are individually treated for corrosion protection, and the shackle is hardened and double bolted. That is the construction you want on an exterior gate, yard fence or outdoor enclosure. ABUS rates the 41/45 for securing goods of medium value or at average risk of theft, so for high-value exterior storage step up to a heavier body.

Self-locking. Push the shackle down and it latches, no key needed to lock it, and the key only comes into it to open. That matters on a route where a tech is closing a dozen gates or meter enclosures in a shift. Note it is a pin tumbler cylinder padlock, so the key is not captive while the lock is open, keep track of it.

Key retaining means the key cannot be removed while the shackle is open, which stops someone walking off with the key and leaving the lock hanging unlocked. The 41/45 is not key retaining, it is a self-locking pin tumbler padlock, so the key comes out with the shackle open. If your procedure needs the key captive, for lockout or for a shared gate key, order a key retaining lock such as the Sargent 758. If you specifically want the key to come free, the Sargent 858 and the Medeco 54515G are non-key retaining.

The Medeco 5260 in the 52 Series uses a 7/16 inch shackle diameter in a brass body with satin chrome finish and M3 key technology. The ABUS 41/45 shackle is 5/16 inch. If the hasp opening was drilled for 7/16 inch stock, the 41/45 shackle will sit loose in it and the 5260 is the closer fit.

The ABUS 41/45 body is 1-59/64 inch wide with 25/32 inch horizontal shackle clearance and 29/32 inch vertical shackle clearance. The Sargent 82-856 uses a 2 inch by 2 inch brass case with a stainless steel shackle and is non-key retaining. The two bodies are within a fraction of an inch of each other in width, so a hasp that accepts one generally accepts the other, but the 41/45 shackle clearances are the figures to check against the staple.

The ABUS 41/45 is intended to secure valuables or goods of medium value, or at an average risk of theft, and it is a commercial grade product. Where the exposure is higher, the Sargent 82-856 in the KESO Series and the Medeco 5260 with M3 key technology bring patented key technology that addresses unauthorized key duplication, which the pin tumbler cylinder in the 41/45 does not.