Operated in no time at all – the new Stainless Steel compression latches with round knob or wing knob insert
01. Requirements
Whether in mechanical engineering, transportation or other areas of application, finding a suitable latching solution, e.g. for underbody flaps, is often a challenge due to a lack of space. To ensure that the component can be securely closed, the user must also take various requirements into account, depending on the area of application.
In order to offer our customers a latching solution that is both suitable and safe, DIRAK has developed different versions of a compression quarter-turn latch specifically for this challenge. Its robust material properties and keyless operation allow flexible use and inserts in no time at all, especially outdoors, even in confined spaces.
02. product advantages
- Color-coded lock indicator for more security and quick recognition of the locking position (window)
- Keyless, simple handling of the inserts
- Shake and vibration-proof in accordance with DIN EN 61373
- Dust and waterproof (IP65/67) in accordance with DIN EN 60529
- Corrosion-resistant and suitable for outdoor use
- Grounding nut on one side for equipotential bonding
- Compression 6mm
- Variants with long axis: with tool-free adjustable knurled wheel
- Variants with a short axis: particularly space-saving
- Version with wing knob insert: pleasant feel
- Version with round knob: flat design, no protruding edges
Segment cutting edge
In a countersunk hole, the segment cutting edge makes electrical contact with the metallic base material. The double-sided design of the segment cutting edge guarantees safe equipotential bonding. When cutting the lacquer layer up to max. 170µm, no paint chips are produced in the countersink. The segment cutting edge and the scraping tooth increase the underhead friction both in a counterbore and in a cylindrical bore and thus increase the resistance to loosening in the fastener.
Scraping tooth
With a cylindrical hole, the double-sided, 90° offset scraping teeth ensure safe equipotential bonding on the edge of the sheet. By screwing them in, they scratch the painted edge up to max. 170μm of the hole and make electrical contact with the metal. The segment cutting edge centers the screw in the hole.
Metric thread-forming to DIN 7500
The non-circular cross-section and the slightly conical shape mean that chipless thread forming begins with the first turn of the screw. This hardens the surrounding material and forms the nut thread. The backlash-free seat provides safety against self-loosening under dynamic load. Chipless grooving eliminates the need for chip removal, thread cutting and additional nuts.
Metric
The standardized thread with metric dimensions and 60° flank angle can be easily screwed into the pre-cut thread.
03. areas of application
The DIRAK compression latches made of Stainless Steel with round knob or wing knob insert offer an optimum solution for a wide range of applications.
The best result for your application
We would also be happy to get to know your application and find a solution precisely tailored to your requirements.04. dimensions
Material
Housing, knurled wheel, inserts, grounding nut, square threaded rod and threaded rod: AISI 316
Driver: AISI 301
Notes
(S) Door thickness max.
12mm for GL22
1. Compression 6mm
2. Grounding nut on one side
3. Flat external seal
4. H-dimension adjustment
5. Window
05. ordering options
Compression latch, right-hand version, left-hand closing| Product number | Inserts | Variant | Mounting type | Delivery unit | Link | |
| 248-9050.01-00001 | a) | wing knob | long axis | screw-on | 1 piece | Zum Produkt |
| 248-9048.01-00001 | a1) | wing knob | short axis | screw-on | 1 piece | Zum Produkt |
| 248-9050.01-00002 | b) | Round knob | long axis | screw-on | 1 piece | Zum Produkt |
| 248-9048.01-00002 | b1) | Round knob | short axis | screw-on | 1 piece | Zum Produkt |
Compression latch, left-hand version, right-hand closing
| Product number | Inserts | Variant | Mounting type | Delivery unit | Link | |
| 248-9050.02-00001 | a) | wing knob | long axis | screw-on | 1 piece | Zum Produkt |
| 248-9048.02-00001 | a1) | wing knob | short axis | screw-on | 1 piece | Zum Produkt |
| 248-9050.02-00002 | b) | Round knob | long axis | screw-on | 1 piece | Zum Produkt |
| 248-9048.02-00002 | b1) | Round knob | short axis | screw-on | 1 piece | Zum Produkt |
