Manufacture of special screws, bent-bolt screws, hooks, eyelets and bent parts made of steel and stainless steel to drawing or sample
WNC Schrauben GmbH
Kalkwerkstr. 60, 57413 Finnentrop-FretterNew on Amplifa
About WNC Schrauben GmbH
WNC Schrauben GmbH, based in Finnentrop-Fretter (Olpe district, North Rhine-Westphalia), is a medium-sized, owner-managed family business specialising in the manufacture, sale and trading of screws and bent parts. The portfolio includes bent-bolt screws, hooks and eyelets, threaded studs, double-end studs, weld ends, anchor screws as well as special screws made to customer drawing or sample. Production is carried out to DIN standards or individual specifications, with cut or rolled threads in the range M6 to M30 and component lengths up to 1000 mm; on request in VA material (stainless steel) for increased corrosion protection. An extensive material warehouse enables fast and flexible responses to customer requirements. The products are used, among other things, in shipbuilding, wind turbines, industrial plants, mechanical engineering, crane systems as well as in vehicle and trailer construction. The company's history goes back to 1876; the present GmbH was entered in the commercial register in 1991 as Norbert Bitter Schrauben GmbH and renamed WNC Schrauben GmbH in 2024.
- Site
- Finnentrop-Fretter
- Processes
- Bent-bolt screws (manufacture), Hooks and eyelets (manufacture, incl. welding), Threaded studs, double-end studs, weld ends (manufacture), Anchor screws (manufacture), Special screws to drawing or sample, Thread cutting (cut thread), Thread rolling (rolled thread), Bent parts (manufacture)
- Materials
- Steel, VA material (stainless steel), Cut thread, Rolled thread
- Employees
- 20–49
- Industries
- Shipbuilding, Wind turbines, Industrial plants, Mechanical engineering, Agricultural and forestry machinery, Residential and hall construction
- 01
Material warehouse and procurement (steel, VA)
- 02
Cold forming of screws and bent parts
- 03
Thread cutting (cut threads) or thread rolling (rolled threads)
- 04
Welding (e.g. hooks and eyelets, weld ends)
- 05
Warehousing and shipping, worldwide delivery
Materials and Processes
Steel
Base material for screws and bent parts to DIN standard or customer drawing.
VA material (stainless steel)
Optional version for increased corrosion resistance, e.g. in shipbuilding.
Cut thread
Thread cutting as a manufacturing option for bent-bolt screws, special screws and threaded studs.
Rolled thread
Thread rolling as an alternative to cut threads, among others for threaded studs and double-end studs.
Site
Finnentrop-Fretter
DEProduction, warehouse and administration
- Materials
- Steel, VA (stainless steel)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Bent-bolt screws (manufacture)Joining | – | – | – | – | Steel, VA (stainless steel) |
| Hooks and eyelets (manufacture, incl. welding)Joining | – | – | – | – | Steel, VA (stainless steel) |
| Threaded studs, double-end studs, weld ends (manufacture)Joining | – | – | – | – | Steel, VA (stainless steel) |
| Anchor screws (manufacture)Joining | – | 1000 mm | – | – | Steel, VA (stainless steel) |
| Special screws to drawing or sampleJoining | – | – | – | – | Steel, VA (stainless steel) |
| Thread cutting (cut thread)Machining | – | – | – | – | Steel, VA (stainless steel) |
| Thread rolling (rolled thread)Forming | – | – | – | – | Steel, VA (stainless steel) |
| Bent parts (manufacture)Forming | – | – | – | – | – |
| Weld ends (welding)Joining | – | – | – | – | Steel, VA (stainless steel) |
Additional services
Company History
- 1876
Company history began as a wood sawmill
- 1900
Portfolio expanded to include production of small iron goods (parallel to wood processing)
- 1991-03-05
Registration of Norbert Bitter Schrauben GmbH in the commercial register
- 2003-12-30
Capital: 50,000 DEM
- 2009-08-12
Managing director Wolfgang Haase; capital €26,000
- 2024-12-19
Renaming to WNC Schrauben GmbH; registered office remains in Finnentrop