UNITY Hardware Ltd. Logo-professional architectural door hardware manufacturer 
Whether you look for a black door hinge supplier or for custom hinges, UNITY has the optional manufacturing solutions for you.
UNITY ball bearing black door hinge HB404030-BK comes in the size of 4” x 4” x 3mm; And it is suitable for a wide range of door thickness/weight(up to 120kg).
Specifications and Features
– AISI304 stainless steel material for high corrosion resistance (AISI316 material available)
– Hardened Ball Bearings
– Square and radius corner version available
– Template drilled for easy installation and retrofitting purpose
– Designed for metal or timber fire rate door set
– Dogbolt version optional for enhanced security
– UNITY black door hinge HB404030-BK is suitable for a wide range of door thickness/weight (up to 120kg)
– Supplied with CSK stainless steel screws
EN1935:2002 Classifications
Standard Hinges
| 4 | 7 | 6 | 1* | 1 | 4 | 0 | 13 |
Dogbolt Hinges
| 4 | 7 | 6 | 1* | 1 | 4 | 0 | 13 |
*Provided they are fitted in accordance with the guidelines detailed in IFCA/06252.
Other Finishes Available
– Satin Stainless Steel (US32D/630)
– Polished Stainless Steel (US32/629)
– Satin PVD Titanium
– Bright PVD Titanium
*Other finishes available on request
UNITY Mortice Door Hinge
As a black door hinge supplier, Unity offers a standard range of hinges as well as the capability to produce custom hinges.
For the standards and tests, Unity’s stainless steel butt hinges have been tested to EN1935: 2002 (Grade 13/Grade 10) and also fire rated to EN1634-1.
