
Wing Nuts
DIN 315 Hand-Tightening Nuts for Quick Adjustment and Repeated Assembly
VALTOR supplies stainless steel DIN 315 wing nuts, also known as butterfly nuts, for tool-free fastening, quick adjustment and repeated assembly in furniture, fixtures, machinery and general industrial applications.
Product Overview
DIN 315 wing nuts are designed for hand tightening where quick installation, frequent adjustment or tool-free fastening is required.
With two wings extending from the internally threaded nut body, wing nuts can be tightened and loosened manually, making them suitable for furniture structures, fixtures, equipment covers, light assemblies and adjustment systems.
VALTOR supplies 304 and 316 stainless steel DIN 315 wing nuts with corrosion-resistant natural or passivated finishes. Rounded Type A and angular Type B styles are available according to customer requirements, with carbon steel and custom specifications also supported.
Technical Specifications
Wing Geometry & Tool-Free Tightening
DIN 315 wing nuts use two projecting wings for hand tightening and loosening without a wrench in frequently adjusted, removable or temporarily positioned assemblies.
Material, Type & Finish Options
Material, DIN 315 type, thread and finish should suit the handling frequency, environment and mating fastener.
Not every finish applies to every base material.
Quality Control & Dimensional Inspection
Inspection emphasizes mating-thread fit, correct Type A or Type B geometry and safe manual handling quality.
Thread diameter, pitch, quality and mating fit are verified. Wing checks cover shape, symmetry, formation, deformation, burrs, sharp edges and surface defects. Supplied geometry is confirmed as the required DIN 315 Type A or Type B without mixing profiles. Dimensional inspection may cover thread size, overall wing width, nut and wing height, and central body dimensions without inventing values. Finished parts are checked for cracks, poorly formed wings, contamination and defects that could interfere with hand operation. Available documentation may include a Material Certificate / MTC, raw material report, dimensional inspection report or third-party inspection support.
OEM Supply, Packaging & Ordering
Supply may follow DIN 315 or customer-specific thread, wing geometry, dimensions, material, finish and drawings. Geometry differing from DIN 315 is identified as custom unless it actually conforms.
Thread compatibility is confirmed for the final assembly.
Provide DIN 315, Type A or Type B, thread size and pitch, material, finish, quantity, mating fastener information, drawing or sample for custom parts, packaging and documentation.
Packing should reduce wing deformation, scratching, thread contamination and impact damage.
Customer labels, part numbers, carton markings, packing quantities and customer-authorized private-label packaging can be supported.
Delivery depends on Type A or Type B, thread, material, finish, quantity, standard or custom geometry and current production availability.
Applications
Tool-free fastening solutions for furniture, fixtures, equipment and repeated adjustment applications.

Enables fast manual positioning and adjustment of machinery guards, stops and light-duty components.
Supports repeated setup changes in fixtures and jigs without requiring hand tools.
Provides convenient access to removable covers and inspection panels on electrical equipment.
Simplifies frequent assembly and adjustment on laboratory stands and light industrial equipment.
Suitable for furniture and general assemblies that require quick hand tightening and removal.
Frequently Asked Questions
What are DIN 315 wing nuts used for?
DIN 315 wing nuts are used in applications requiring hand tightening, quick adjustment and repeated assembly without tools.
What is the difference between Type A and Type B wing nuts?
DIN 315 Type A wing nuts have a more rounded wing shape, while Type B wing nuts have a more angular or square wing form. The suitable type depends on handling preference and application design.
When should I choose stainless steel wing nuts?
Stainless steel wing nuts are commonly selected for applications requiring corrosion resistance, cleaner appearance or use in humid, outdoor or washdown environments.
Can wing nuts be supplied in custom sizes or packaging?
Yes. VALTOR can supply wing nuts according to size requirements, packaging preferences and other project specifications.
How are DIN 315 wing nuts packaged for export shipment?
Wing nuts can be packed in bags, cartons, boxes or customized export packaging according to order quantity and customer requirements.
Related Products
Share the required material, thread size, quantity, packaging and documentation requirements with VALTOR.





