Specialist in thread-forming screws, micro screws and custom screws to drawing for plastics, light metals and sheet metal
Hans Schriever GmbH & Co. KG
Lüdenscheid (Hoher Hagen 5, production and administration) · Lüdenscheid (Hoher Hagen 1, warehousing) · Schalksmühle (Hälverstraße 65a, warehousing)New on Amplifa
SCHRIEVER combines
Hans Schriever GmbH & Co. KG is a screw factory founded in 1935 in Lüdenscheid and a specialist in thread-forming screws, micro screws, complex drawn parts and cold extrusion parts. The company manufactures screws for direct fastening into thermoplastics (STS), thermosets (SDS), light metals (S-Trax) and sheet metal (SBS), as well as plastic screws in common WN formats. With the S-Mikro®, Schriever cold-forms thread-forming screws from a nominal thread diameter of 1.0 mm; custom screws to drawing are available from a minimum quantity of 10,000 pieces. Materials include steels, light metals, thermoplastics, thermosets and zinc-aluminium die casting. Main customers are the plastics processing industry, the electrical industry and the automotive supply industry. The quality management system is certified to DIN EN ISO 9001:2015 and IATF 16949:2016. Since 1999, the company has been producing on a 22,000 m² site with 6,100 m² of usable floor space in the Römerweg industrial estate in Lüdenscheid.
- Site
- Lüdenscheid
- Processes
- Manufacture of screws (screw factory, thread-forming screws, micro screws, complex, Production of custom screws to drawing / individual requirements, Thread-forming screws for thermoplastics (direct fastening into thermoplastics, STS/STSplus), Direct fastening into thermosets (SDS), Direct fastening into light metals (S-Trax), Direct fastening into sheet metal (SBS), Production of micro/miniature screws from 1.0 mm nominal thread diameter (S-Mikro), cold-formed, Production of plastic screws (compatible with WN1411, WN1412, WN1413, WN1441-WN1447,
- Materials
- Steels, Light metals, Thermoplastics, Thermosets, Zinc-aluminium die cast parts, Sheet metal, Plastic (plastic screws), Zinc-aluminium die casting
- Certificates
- DIN EN ISO 9001:2015, IATF 16949:2016
- Founded
- 1935
- Employees
- 100
- Industries
- Plastics processing industry, Electrical industry, Automotive supply industry, Micro applications / miniaturisation and lightweight construction, Plastics processing industry
- 01
Consulting on screw joint design
- 02
CAD design (2D/3D) and technical drawings
- 03
Cold extrusion / cold forming of screws
- 04
Surfaces with market-standard corrosion protection
- 05
Quality inspection (measurement, torque testing, sorting)
- 06
Delivery, optionally PiP speed production from four weeks
Materials and processes
Steels
Used for screws and direct fastening into sheet metal as well as micro screws.
Light metals
Micro screws and direct fastening (S-Trax) for light metal applications.
Thermoplastics
Direct fastening into thermoplastics with the STS/STSplus screw types.
Thermosets
Direct fastening into thermosets with the SDS type.
Zinc-aluminium die casting
Patented fasteners for zinc-aluminium die cast parts since 1992.
Plastic
Plastic screws compatible with common WN formats such as WN1411, WN1412, WN1441–WN1453.
Cold extrusion
Forming process for screws, drawn parts and complex components.
Locations
Lüdenscheid, Hoher Hagen 5
DEProduction and administration
- Part weight / size
- from 1.0 mm nominal thread diameter
- Lot size
- from 10,000 pieces; ca. 8 million screws/day (as of 1999)
- Materials
- Steels, light metals, thermoplastics, thermosets, plastic
- Machine fleet for micro screw production
- PiP speed production manufacturing cell
- SPC and CAQ systems
- Electronic process monitoring
Lüdenscheid, Hoher Hagen 1
DEWarehousing
Schalksmühle, Hälverstraße 65a
DEWarehousing
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of screws (screw factory, thread-forming screws, micro screws, complexForming | – | – | – | 10,000 pieces (minimum quantity – Daily production 8 million screws | Steels, Light metals, Thermoplastics |
| Production of custom screws to drawing / individual requirementsForming | – | – | – | 10,000 pieces | Steels, Light metals, Thermoplastics, Thermosets, Zinc-aluminium die casting |
| Thread-forming screws for thermoplastics (direct fastening into thermoplastics, STS/STSplus)Forming | – | – | – | – | Thermoplastics |
| Direct fastening into thermosets (SDS)Forming | – | – | – | – | Thermosets |
| Direct fastening into light metals (S-Trax)Forming | – | – | – | – | Light metals |
| Direct fastening into sheet metal (SBS)Forming | – | – | – | – | Steels |
| Production of micro/miniature screws from 1.0 mm nominal thread diameter (S-Mikro), cold-formedForming | – | – | – | 10,000 pieces | Thermoplastics, Light metals, Steels |
| Production of plastic screws (compatible with WN1411, WN1412, WN1413, WN1441-WN1447,Forming | – | – | – | 10,000 pieces | Plastic |
| Production with market-standard corrosion protection surfacesSurface | – | – | – | – | Steels, Light metals |
| Design / technical consulting / fastening technology optimisation (CAD 2D/3D, technicalEngineering | – | – | – | – | – |
| Quality inspection: optical and mechanical measurement of all product characteristics, electronicTesting | – | – | – | – | – |
| PiP speed production (production in production, own manufacturing cell for STSplus, delivery fromForming | – | – | – | – | Thermoplastics |
| Support from design through to assemblyAssembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Modern machine fleet for micro screw production (expanded for manufacturing technology and | – | – | – | – | Lüdenscheid |
Additional services
Quality management
The quality policy follows a zero-defect strategy. Quality assurance is carried out with production data acquisition, electronic process monitoring, SPC and CAQ systems, optical and mechanical measurement of all product characteristics, electronic torque testing and sorting facilities; an testing laboratory is offered as an extra service.
| Evidence | Lüdenscheid |
|---|---|
| DIN EN ISO 9001:2015 | |
| IATF 16949:2016 |
History
- 1935
Company founded; originally a manufacturer of bright fasteners.
- 1992
Start of the company's own patents for fasteners into thermoplastics, thermosets, zinc-aluminium die cast parts and sheet metal.
- 1999
New industrial building in the Römerweg industrial estate, Hoher Hagen 5, Lüdenscheid: 22,000 m² site, 6,100 m² usable floor space, 100 employees, daily production of 8 million screws.