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Wing Nuts by ZCM - Zhongchun Machinery
Three wing nuts in different sizes by ZCM
Bulk wing nuts by ZCM
Two wing nuts side by side by ZCM
Wing nuts close-up showing different sizes by ZCM

Nuts

Wing Nuts (Butterfly Nuts)

蝶形螺母 / DIN 315 Wing Nuts

Our wing nuts feature two symmetrical wing-shaped projections that allow for convenient hand tightening and loosening without the need for tools. Manufactured through precision cold heading, these nuts deliver consistent quality and reliable clamping force. They are the preferred choice for applications requiring frequent assembly, disassembly, or adjustment, including temporary fixtures, furniture hardware, and maintenance access panels.

Key Features

Tool-free hand tightening with ergonomic wing design
Cold-headed for superior strength and durability
Consistent thread quality for reliable engagement
Available in carbon steel and stainless steel
Multiple surface finishes for corrosion protection
Custom sizes and wing profiles available on request

Technical Specifications

Product NameWing Nuts (Butterfly Nuts)
Chinese Name蝶形螺母
BrandZCM / Zhongchun
Grade4 / 8
MaterialCarbon Steel, Stainless Steel (304/316)
Size RangeM3 - M12
ThreadStandard Metric (Coarse / Fine)
TypeCold-Headed Wing, Cast Wing
Surface TreatmentZinc Plated (White/Yellow/Blue), Plain, Nickel Plated
StandardsDIN 315, GB/T 62, Custom
PackagingCarton + Pallet, or per customer request
MOQContact us for details
Lead Time15 days for standard orders

Applications

Wing nuts are versatile fasteners used wherever tool-free hand tightening and frequent adjustment is needed.

Temporary fixtures and jigs requiring frequent adjustment
Furniture assembly and flat-pack products
Musical instrument hardware and stage equipment
Outdoor and garden equipment with tool-free assembly
Automotive air filter and battery clamp connections
HVAC ductwork and ventilation system fastening
Electrical panel covers and access doors
Plumbing and pipe clamp assemblies

Interested in Wing Nuts?

Send us your specifications for a competitive quote. Standard orders delivered in 15 days.