JACKSONS BLANK 747 - Dr Lock Shop
- Brand: Jacksons
- Product Code: 09120250
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Local StockIn Stock (154)1–3 daysNational StockIn Stock (500)1 week
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$16.53
- Ex Tax: $15.03
JACKSONS BLANK 747
Product Overview
The JACKSONS BLANK 747 is a premium replacement key blank crafted specifically for Jacksons mortice locks. Designed to meet the exacting standards of locksmiths, security professionals, and discerning customers, this key blank ensures precise compatibility and reliable performance. It is ideal for those requiring a high-quality key blank that fits seamlessly with Jacksons JM29, JM560, JM25, and JM546 mortice lock models.
Key Features
- Stem length of 51 mm for an optimal fit
- Stem diameter of 4.9 mm for enhanced durability
- Blade dimensions: 11.51 mm width and 10.72 mm length for accurate key cuts
- Includes a collar for secure key engagement
- Distance between bit and collar is 1.6 mm for precise operation
- Compatible with Jacksons JM29, JM560, JM25, and JM546 mortice locks
Technical Specifications
| Brand | Jacksons | ||
| Stem Length | 51 mm
| ||
| Stem Diameter | 4.9 mm | ||
| Blade Width | 11.51 mm | ||
| Blade Length | 10.72 mm | ||
| Distance Between Bit & Collar | 1.6 mm | ||
| Collar | Yes | ||
| Bit Length (along stem) | 11.51 mm | ||
| Bit Thickness | 2.5 mm | ||
| Bit Width (away from stem) | 10.72 mm | ||
| Pin or Pipe | Pin | ||
| Compatible Lock Models | Jacksons JM29, JM560, JM25, JM546 Mortice Locks |
Ideal Applications
The JACKSONS BLANK 747 is perfectly suited for locksmiths and security professionals working with Jacksons mortice locks in residential, commercial, and light industrial settings. Its precise specifications make it an excellent choice for key replacement, master key systems, and lock servicing where Jacksons JM29, JM560, JM25, or JM546 mortice locks are installed.
Key Gauge to Imperial / Metric Conversion
Use this key gauge conversion table from Dr Lock Shop to identify the correct gauge for old pin keys, pipe keys, safe keys, and other traditional keys. Measure the diameter of the key shaft and compare it with the imperial or metric measurements below.
Key Gauge |
Inches (Decimal) |
Millimetres (mm) |
1 |
0.300" |
7.60 mm |
2 |
0.276" |
7.01 mm |
2½ |
0.264" |
6.71 mm |
3 |
0.252" |
6.40 mm |
3½ |
0.242" |
6.15 mm |
4 |
0.232" |
5.89 mm |
4½ |
0.222" |
5.64 mm |
5 |
0.212" |
5.38 mm |
5½ |
0.202" |
5.13 mm |
6 |
0.192" |
4.88 mm |
6½ |
0.184" |
4.67 mm |
7 |
0.176" |
4.47 mm |
7½ |
0.168" |
4.27 mm |
8 |
0.160" |
4.06 mm |
9 |
0.144" |
3.66 mm |
10 |
0.128" |
3.25 mm |
11 |
0.116" |
2.95 mm |
12 |
0.102" |
2.62 mm |
Choosing the correct key gauge: Measure across the outside diameter of the round shaft. Match your measurement as closely as possible with the table above before ordering your replacement key from Dr Lock Shop.
Tags: JACKSONS BLANK 747, 09120250, Pin Keys – Solid Shaft
