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Better Fastener Industry Co., Ltd. manufactures Wing Nuts for assemblies that are tightened, opened and re-closed by hand. Our range covers the standard symmetric wing forms used across inspection covers, laboratory and test equipment, camera and optical hardware, outdoor furniture and general industrial access panels, produced in carbon steel, stainless steel and zinc alloy.
We are a China fastener manufacturer with in-house nut, bolt and washer production, an in-house laboratory and a sales and engineering team that works from drawings, samples or reference standards. Wing nuts are supplied as standard parts to DIN and ASME dimensions or developed as custom components where the wing profile, thread or finish must match an existing assembly.
Our Wing Nut Range
The range is organised by standard and wing geometry rather than by size alone, because the wing form determines how much hand torque an operator can apply and how much clearance the part needs around the joint.
| Product | Wing Form | Typical Fit |
|---|---|---|
| DIN 315:2016 Round Wing Wing Nut | Rounded, symmetric wings | General tool-free adjustment, covers and panels |
| DIN 314:1999 Square Wing Wing Nut | Flat, squared wings | Higher hand torque, compact joint envelopes |
| DIN 80701:1991 Horn-like Wing Nut | Raised horn profile | Deep grip where fingers need clearance |
| ASME B18.6.9:2010 Type A Wing Nut | Inch-series standard wing | North American inch-thread assemblies |
| ASME/ANSI B18.6.9:2010 Low Type Wing Nut | Reduced-height wings | Low-profile joints and stacked hardware |
| ASME/ANSI B18.6.9:2010 Low Type Round Wing Nut | Low height, rounded wings | Enclosed equipment and instrument housings |
Where Wing Nuts Fit in an Assembly
A wing nut replaces a hex nut where the joint is opened and closed during normal use rather than set once at assembly. The wings provide the lever arm, so the operator develops clamping force without a wrench. That makes the part suitable for light-duty and medium-duty joints, access covers, clamping plates and equipment that is serviced on site.
- Inspection and service panels on machinery and enclosures
- Laboratory and test rigs where fixtures are changed frequently
- Camera, optical and photographic mounting hardware
- Outdoor furniture, tent frames and temporary structures
- Electrical and instrument housings requiring tool-free access
Where the joint must resist vibration or carry structural load, we normally pair the wing nut with a Lock Nuts arrangement or a washer under the contact face, and we match the thread to the mating Bolts or studs in the same assembly.
Materials and Finishes
Material selection follows the environment and the required hand torque. Carbon steel gives the most economical body for indoor equipment; stainless steel is used where moisture, wash-down or outdoor exposure would corrode a plated part; zinc alloy suits cast wing profiles and lighter duty applications.
- Carbon steel with zinc plating for general indoor assemblies
- Stainless steel for outdoor, marine-adjacent and wash-down environments
- Zinc alloy for cast wing forms and lighter clamping duties
- Finishes including zinc plating, chrome plating and stainless finishes
Threads are produced in metric and inch series to match the standard selected, and we confirm thread class, pitch and tolerance against the drawing before production.
Specifications We Work To
Wing nuts are ordered against a standard, a drawing or a sample. The specification set below is what we confirm before releasing a batch.
- Standard reference: DIN 314, DIN 315, DIN 80701 or ASME B18.6.9 Type A and Low Type
- Thread size and series: metric coarse or fine, or inch series as specified
- Wing span, wing height and overall nut height
- Base diameter and bearing face geometry
- Material grade and surface finish
- Marking, packaging and unit quantity
Custom Wing Nut Development
Custom production is a core part of our business. We develop wing nuts from customer drawings or physical samples, including non-standard wing profiles, special thread lengths, captive or assembled variants and parts that must match an existing housing or cover.
Our engineering team reviews the drawing for formability, thread engagement and finish before quoting, and we return a dimensioned confirmation so the part can be checked against the mating component before tooling or production begins.
Quality Control and Acceptance
We operate total quality management through the production process, with inspection after each operation and final inspection of finished parts. Our laboratory is equipped with a spectrometer, coordinate measuring machine, X-ray flaw detector and other testing equipment, covering chemical composition, mechanical properties, non-destructive testing and geometric dimensions.
- Incoming material verification by spectrometer
- In-process inspection after each production step
- Final dimensional inspection against the drawing or standard
- Inspection records issued with the shipment on request
Our quality system is certified to ISO 9001, and products are manufactured to international standards for customers in North America, Australia, Europe and other markets.
Packaging, Delivery and Logistics
Wing nuts are packed to suit the sales channel and the receiving operation: bulk export cartons, retail kits, blister packs and custom boxes. We confirm unit quantity, labelling and carton marking before production so the goods arrive ready for the warehouse or the shelf.
Our facilities are within a two-hour drive of Shanghai and Ningbo ports, which supports sea freight as the main shipping mode and air freight for urgent deliveries. DDP delivery to the customer's door is available where the project requires it.
Information We Use to Configure Your Solution
A wing nut quotation is only accurate when the joint is described. The following inputs let us select the standard, material and finish and confirm the price and lead time.
| Input | What We Confirm |
|---|---|
| Standard or drawing | DIN 314 / DIN 315 / DIN 80701 / ASME B18.6.9, or a dimensioned drawing |
| Thread size and series | Metric or inch, coarse or fine, thread class |
| Mating bolt or stud | Thread compatibility and engagement length |
| Material and finish | Carbon steel, stainless steel or zinc alloy; plating or bare finish |
| Operating environment | Indoor, outdoor, moisture or wash-down exposure |
| Quantity and packaging | Batch size, carton or retail pack, labelling |
| Inspection requirement | Dimensional report, material certificate, sampling plan |
Related Fasteners in the Same Supply Program
Wing nuts are usually ordered alongside the mating hardware, and we consolidate those items into one specification-led supply program to reduce the number of shipments and inspection points.
- Nuts across hexagon, flange, lock, acorn and slotted forms
- Hexagon Head Bolts for the threaded side of the joint
- Washers for load distribution under the wing nut face
Frequently Asked Questions
Which standards do your wing nuts follow?
We produce wing nuts to DIN 314:1999 square wing, DIN 315:2016 round wing, DIN 80701:1991 horn-like wing and ASME B18.6.9:2010 Type A and Low Type forms, in metric and inch thread series. Non-standard profiles are produced from customer drawings or samples.
What materials can you supply?
Carbon steel, stainless steel and zinc alloy are the standard options, with zinc plating, chrome plating and stainless finishes. The choice follows the operating environment and the hand torque the joint requires.
Can you produce a wing nut to match an existing part?
Yes. Send a drawing or a physical sample with the thread size, wing dimensions and material, and our engineering team will confirm the dimensions and finish before production. Custom development is a core part of our business.
How is quality verified before shipment?
Inspection is carried out after each production step and on finished parts. Our laboratory uses a spectrometer, coordinate measuring machine and X-ray flaw detector to check chemical composition, mechanical properties, non-destructive testing and geometric dimensions, and inspection records can be issued with the shipment.
What packaging and shipping options are available?
We pack in bulk export cartons, retail kits, blister packs or custom boxes to suit the sales channel. Sea freight is the main mode from Shanghai and Ningbo ports, with air freight for urgent deliveries and DDP delivery available where required.
What do you need to prepare a quotation?
Standard or drawing, thread size and series, material and finish, operating environment, quantity, packaging format and any inspection requirement. With those inputs we confirm the specification, price and delivery schedule.
