Master Lock Pro Series Solid Steel Padlock with 2 Keys
Master Lock Pro Series Solid Steel Padlock with 2 Keys
Click to enlarge
Features
Master Lock Pro Series Solid Steel Security Padlock
The Master Lock Pro Series is a key-operated, solid steel padlock supplied with two keys. Its hardened steel shackle, dual deadbolt locking and six-pin spool-pin cylinder make it a more substantial option than a basic general-purpose padlock where the fitting and security requirements are suitable.
The model described here has a 40 mm body. Check its shackle dimensions in the Specification tab before ordering; a strong padlock is only effective when the hasp, staple or other locking point is also suitable.
Key Features and Benefits
- Solid steel body: robust construction for compatible storage and security fittings.
- Hardened steel shackle: intended to improve resistance to cutting compared with unhardened steel.
- Dual deadbolt locking: helps resist attacks that attempt to lever the shackle open.
- Six-pin spool-pin cylinder: a keyed mechanism designed to make picking more difficult.
- Two keys supplied: a spare key is included with the padlock.
Choosing the Right Padlock for Your Fitting
- Measure the hole: ensure it accepts the 6 mm shackle diameter.
- Check shackle clearance: compare the stated shackle length and horizontal clearance with the hasp or staple.
- Check body space: allow room for the 40 mm padlock body and access to the keyway.
- Assess the complete installation: the hasp and mounting must suit the required level of security.
- Consider exposure: do not assume a solid steel body alone establishes suitability for prolonged outdoor or coastal use.
This padlock may suit compatible lockers, equipment cabinets, stores and other keyed access points. Locker hasps vary, so confirm fit rather than relying on the padlock body width alone.
Specification
Master Lock Pro Series Padlock Specifications
The specifications below reflect the supplied product-page data. Dimensions are in millimetres. Confirm critical fitting dimensions against the linked manufacturer's PDF before ordering.
| Specification | Details |
|---|---|
| Body material | Solid steel |
| Body width | 40 mm |
| Shackle material | Hardened steel |
| Shackle diameter | 6 mm |
| Stated shackle length | 27 mm |
| Horizontal shackle clearance | 20 mm |
| Locking mechanism | Dual deadbolt |
| Cylinder | Six-pin spool-pin |
| Keys supplied | 2 |
Fit note: the 27 mm value is described as shackle length in the supplied data. Verify whether the manufacturer's drawing defines it as inside vertical clearance before using it for a close-tolerance installation.
Care and Inspection
Keep the keyway clear of dirt and moisture, inspect the shackle and locking point for wear, and use a lubricant suitable for lock cylinders. Replace a padlock that is damaged or no longer operates reliably.
Master Lock Pro Series Technical FAQs
What are the padlock's body and shackle dimensions?
The supplied page data specifies a 40 mm solid steel body, 6 mm shackle diameter, 27 mm shackle length and 20 mm horizontal clearance. Confirm the drawing convention for shackle length before ordering for a tight fit.
How does the Pro Series locking mechanism work?
It uses dual deadbolt locking to resist prying and a six-pin spool-pin cylinder designed to make picking more difficult.
Will this padlock fit my locker hasp?
Compatibility depends on the hasp hole, shackle clearance and room around the lock body. Measure the fitting and compare it with the technical dimensions before ordering.
How many keys are supplied?
Two keys are supplied with the padlock.
Delivery
Delivery Information
The approximate lead time is 5 Working Days.
Standard delivery is available to mainland UK addresses, Monday to Friday between 8:00 am and 5:00 pm.
Deliveries are kerbside only. Products may be delivered by a third-party pallet or specialist carrier using a suitable commercial vehicle.
The customer is responsible for providing suitable personnel and equipment to unload the delivery safely.
Please tell us before ordering about restricted access, specific delivery dates or times, FORS requirements or other special delivery arrangements. These may be available at an additional cost.

