£308.65

Master Lock Pro Series Hidden Shackle Padlocks, Keyed Alike 6271NKA-6 w/BumpStop Technology

Metallic Gray, 6271NKA-6

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£309 for 82 days straight · last change was Dec 2025

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 633 days • 633 data points (No recent data available)

Historical
Generating forecast...
£344.09 £248.35 £269.24 £290.13 £311.01 £331.90 £352.79 06 June 2024 11 November 2024 18 April 2025 23 September 2025 28 February 2026

Price Distribution

Price distribution over 633 days • 4 price ranges

Days at Price
Current Price
330 days 84 days 211 days · current 8 days 0 83 165 248 330 £257-274 £274-292 £292-309 £327-344 Days at Price

Price Analysis

Most common range: £257-274 (330 days, 52.1%)

Price range: £257 - £344

Price levels: 4 price ranges over 633 days

Description

FEATURING BumpStop TECHNOLOGY - Lock bumping a surprisingly simple method of breaking in through locked doors and padlocks - is undoubtedly the newest emerging threat to personal property security. And virtually all locks in use today are particularly vulnerable to bumping. Until now... BumpStopô Advanced Cylinder Technology employs an innovative, patent pending design which utilizes a unique reverse rake tapered driver pin, high performance springs and tightly machined cylinder chambers. During a bump attempt, this design prevents the transfer of force from the bump key to the pins and therefore blocks rotation of the cylinder so that the lock remains locked. ProSeriesÆ Reinforced Zinc Die-Cast Why Zinc Castings? For countless decorative and functional applications no other material and process can match the properties and economics of zinc die casting. Toughness: Few materials provide the strength and toughness of zinc alloys. Impact resistance is significantly higher than cast aluminum alloys, plastics, and grey cast iron. Strength & Ductility: Zinc alloys offer high strengths (to 60,000 psi) and superior elongation for strong designs and formability for bending, crimping and riveting operations. Anti-Sparking: Zinc alloys are non-sparking and suitable for hazardous location applications such as coal mines, tankers and refineries

Key Features

This listing is for 6 keyed alike locks - 12 keys included. If ordering multiple 6 packs, they will be keyed alike. The hardened diecast zinc body is strong, durable and resists corrosion. Pro Series Padlocks are designed for Commercial/Industrial applications. Ideal for transportation, vending, gates, and industrial uses.

These Locks FEATURE BumpStop Advanced Cylinder Technology (For explanation see more product details below).

HIGH SECURITY 6-pin cyclinder for maximum pick resistance. Removable cylinder for replacement or repinning.

BOLT CUTTER TOUGH - fully shielded hardened boron alloy shackle offers impossible to cut and pry resistance features.

DIMENSIONS (see image) - A) 3/8 (10mm), B) 19/32 (15mm), C) 1-23/32 (44mm) Width 2-7/8 (73mm)

Product Specifications

Colour
Metallic Gray
Size
6 Pack
Domain
Amazon UK
Listed Since
20 January 2019