Prodotto finitoview
The Master Lock Keyed Padlock, Model 4140-2341, is designed for indoor and outdoor security applications. It features a durable brass body and a hardened steel shackle, providing resistance against cutting and the elements. The 4-pin tumbler cylinder offers pick resistance, enhancing security for your belongings.
This padlock is ideal for securing cabinets, lockers, gates, fences, and other items requiring reliable protection.

Figura 1: Davanti view of the Master Lock Keyed Padlock, Model 4140-2341, showcasing its brass body and steel shackle.
Impostare
Il lucchetto Master Lock è pronto all'uso immediato. Non richiede alcun montaggio.
- Ispezionare il lucchetto: Prima del primo utilizzo, ispezionare visivamente il lucchetto e le chiavi per verificare la presenza di eventuali segni di danneggiamento o difetti di fabbricazione.
- Identificazione della chiave: Each padlock is supplied with two keys. These keys are unique to your padlock (unless purchased as a keyed-alike set). Keep one key in a safe, accessible location and the other as a spare.
- Test iniziale: Insert a key into the keyway and turn it to ensure the shackle opens and closes smoothly.
Istruzioni per l'uso
Operating your Master Lock keyed padlock is straightforward:
- Per sbloccare:
- Insert the key fully into the keyway at the bottom of the padlock.
- Turn the key clockwise (typically a quarter turn) until the shackle springs open.
- Remove the key. The shackle will remain open.
- Chiudere a chiave:
- Chiudere l'archetto spingendolo con decisione nel corpo del lucchetto finché non scatta in posizione.
- Ensure the shackle is fully seated and cannot be pulled open without the key.
- The padlock is now locked. The key is not required to lock the padlock.

Figura 2: Example applications for the Master Lock padlock, including securing cabinets, sheds, and gates.
Manutenzione
Proper maintenance will ensure the longevity and smooth operation of your Master Lock padlock:
- Lubrificazione: Periodically (e.g., every 6-12 months, or more frequently in harsh environments), apply a small amount of graphite lubricant or a silicone-based lubricant into the keyway and around the shackle mechanism. Avoid oil-based lubricants as they can attract dirt.
- Pulizia: Wipe the padlock body with a clean, dry cloth to remove dirt and grime. For brass components, a mild brass cleaner can be used sparingly, followed by a thorough wipe.
- Cura delle chiavi: Do not force the key if it feels stiff. Ensure the key is fully inserted and aligned before turning. Avoid using bent or damaged keys.
- Magazzinaggio: When not in use, store the padlock in a dry environment to prevent moisture buildup, especially if used outdoors.
Risoluzione dei problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| La chiave è rigida o difficile da girare. | Dirt or corrosion in the keyway; lack of lubrication; bent key. | Apply graphite or silicone lubricant into the keyway. Ensure the key is straight and undamaged. Do not force the key. |
| Shackle does not open when unlocked. | Mechanism stuck due to dirt or corrosion; shackle bent. | Apply lubricant to the shackle entry points and keyway. Gently tap the padlock body. If shackle is bent, the padlock may need replacement. |
| Shackle does not close or lock properly. | Obstruction in the shackle holes; mechanism issue. | Check for debris in the shackle holes. Apply lubricant. Ensure the shackle is aligned correctly when pushing down. |
Specifiche
Detailed specifications for the Master Lock Keyed Padlock, Model 4140-2341:
- Numero modello: 4140-2341
- Materiale del corpo: Ottone massiccio
- Materiale grillo: Acciaio temprato
- Tipo di blocco: Blocco chiave
- Tipo chiave: Keyed Alike (if specified, otherwise unique)
- Numero di pin: 4-pin tumbler cylinder
- Uso consigliato: Interno/Esterno
- Componenti inclusi: 1 lucchetto, 2 chiavi

Figura 3: Dimensional diagram of the Master Lock padlock. Overall dimensions (HxWxD) are approximately 6 x 4 x 1.3 cm. Shackle dimensions (AxBxC) are approximately 0.6 x 2.1 x 2 cm.
| Dimensione | Misurazione |
|---|---|
| Padlock Body Height | 2 7/64 in (approx. 5.3 cm) |
| Padlock Body Width | 1 1/2 in (approx. 3.8 cm) |
| Padlock Body Thickness | 1/2 in (approx. 1.3 cm) |
| Diametro della maniglia | 1/4 in (approx. 0.6 cm) |
| Shackle Height (vertical clearance) | 13/16 in (approx. 2.1 cm) |
| Larghezza della maniglia (spazio libero orizzontale) | 13/16 in (approx. 2.1 cm) |
| Peso dell'articolo | 0.12 chilogrammi (circa 4.2 once) |
Garanzia e supporto
This Master Lock padlock is backed by a Garanzia a vita limitata. This warranty covers defects in material and workmanship for the life of the product under normal use.
For warranty claims, technical support, or further assistance, please contact Master Lock customer service. Refer to the official Master Lock websito per le informazioni di contatto più aggiornate.

Figura 4: Master Lock padlock highlighting the hardened shackle and Limited Lifetime Warranty.
Risorse online: For additional product information, FAQs, and support, visit the official Master Lock websito: www.masterlock.com