21 Gauge Wide Crown
Fine Wire 80 Series Staples
- Wide crown locks materials more firmly.
- Sinsun precision staples zero jamming.
- Heavy-duty fine wire long hold strength.
80 Series Staples | Premium 21 Gauge Wide Crown Fine Wire Staples by Sinsun
Shop high-performance Sinsun 80 Series Staples, 21 gauge 12.8mm wide crown fine wire staples. Manufactured for superior gripping force, anti-jam operation and versatile heavy-duty fine fastening. Ideal for upholstery, carpet laying, furniture production and industrial packaging. Custom sizes & free sample service available for global B2B buyers.
Get a Quick Qoute80 Series Staples – 21 Gauge Fine Wire Fasteners for Upholstery & Furniture | Sinsun®
Professional 80 series staples – 21 gauge, 12.8mm crown, legs 4–16mm. Galvanized & 304/316 stainless. Anti-jam resin bonding. B2B bulk orders from Sinsun.
Sinsun 80 Series Staples Definition & Brand Differentiated Advantages
Sinsun 80 Series Staples are mainstream heavy duty fine staple series in the global fastening industry. They are standardized 21 gauge fine wire U-type industrial fasteners with 12.8mm wide crown design. Due to the large crown design, the stress bearing area is larger than that of narrow crown staples.This provides a stronger clamping force without piercing or damaging soft substrates. The integrated international dimension standard guarantees full compatibility with all conventional 80-type pneumatic staple guns. It allows for smooth docking in automated production lines.
With leg length specifications ranging from 4mm to 19mm, this staple series is designed to address light, medium and heavy fastening scenarios.Sinsun uses high purity prime steel raw materials instead of recycled inferior steel. This greatly improves the tensile strength, wear resistance and anti-oxidation performance of 80 Series staples. The optimized structural design guarantees long-term stable fastening effect in the working environment of frequent vibration and heavy load.
Sinsun’s competitiveness lies in strict zero defect quality control and flexible customized solutions. We independently process raw materials, shape them, surface treat them and inspect the finished product to achieve full-process quality control. The diversified surface finishing and customized packaging services meet the personalized procurement demands of global B2B clients. This solves the market pain points of unstable quality, single specification and poor after-sales service of ordinary 80 series staples.
| Staple Model | Leg Length | Metric Equivalent | Best Application |
| Sinsun 80/4 | 4mm | 5/32″ | fine fabric attachment, backing paper, light trim |
| Sinsun 80/6 | 6mm | 1/4″ | speaker grill cloth, lightweight upholstery, craft work |
| Sinsun 80/8 | 8mm | 5/16″ | medium fabric over foam, canvas, thin plywood backings |
| Sinsun 80/10 | 10mm | 3/8″ | sofa fabric + padding, automotive headliners, cabinet backs |
| Sinsun 80/12 | 12mm | 1/2″ | heavy upholstery, multiple fabric layers, light wood joinery |
| Sinsun 80/14 | 14mm | 9/16″ | thick foam + plywood substrate, mattress edge banding |
| Sinsun 80/16 | 16mm | 5/8″ | heavy-duty furniture frames, marine seating, outdoor fixtures |
Material Options: Electro-galvanized steel (indoor furniture, standard production) | 304 stainless steel (high-humidity environments) | Copper-coated (decorative applications) | Black oxide (for discreet dark-fabric finishing).
80 Series Staples Standard Engineering Drawing & Structural Annotation
This dimensioned drawing reflects our current production tooling for 80 series staples. Every batch from Sinsun matches these tolerances—no variation between shipments.
Key measured dimensions (QA-certified):
Outer crown width: 12.8 mm ± 0.10 mm
Inner crown width: 11.4 mm (nominal)
Wire width (crown material): 0.95 mm ± 0.02 mm
Wire thickness (leg material): 0.65 mm ± 0.01 mm
Leg lengths available: 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm
Chisel point angle: ≈20° (sharpened grind)
Crown inner radius: R0.4 mm (smooth transition, reduces fabric chafing)
Adhesive collation alignment tolerance: ≤ 0.15 mm strip-to-strip
Engineering diagram: A fully dimensioned 2D orthographic drawing showing front view (crown width + leg length variable L), side view (wire profile 0.95×0.65 + chisel point geometry), and top view (crown inner radius and strip collation layout) is available as a downloadable PDF in our product image gallery. Request the PDF via live chat for your engineering team.
| Parameter | Value / Tolerance |
| Series Standard | Type 80 / 80 series staples (BeA 380, Kihlberg 680, Haubold 800, Senco B, Tacwise A8016V compatible) |
| Crown Width (Outer) | 12.8 mm (±0.10 mm) |
| Inner Crown Width | 11.4 mm (nominal) |
| Wire Gauge | 21 Ga |
| Wire Dimensions | Width 0.95 mm (±0.02 mm) × Thickness 0.65 mm (±0.01 mm) |
| Available Leg Lengths | 4, 6, 8, 10, 12, 14, 16 mm (custom on request) |
| Point Style | Chisel point (sharpened grind) |
| Collation / Bonding | Resin / adhesive bonding – prevents strip separation in tool magazine |
| Tensile Strength (wire) | 900–1050 N/mm² (galvanized high-carbon steel) |
| Corrosion Options | Electro-galvanized (Zn 8–12 µm), 304 stainless, 316 marine stainless, copper-coated, black oxide |
| Staples per Strip | 105–125 staples (standard strip) |
| Tool Compatibility | All 80-series pneumatic tackers – BeA 380/16, Kihlberg 680, Haubold 800 series, Senco B series, Spotnails 80 series, Tacwise A8016V, Omer |
| Operating Pressure Range | 60–90 psi (4–6 bar) |
-
Floor Mat Installation
Sinsun 80 Series staples are the fastener of choice for commercial carpet laying projects. The 12.8mm wide crown covers a large area, firmly locking carpet fibers and base layers without local bulging or loosening. High toughness staple body, resistant to trampling and vibration in daily, flat carpet laying effect for long term use in hotels, offices and shopping malls.
-
Soft Furniture & Large Upholstery Fixing
This staple series is suitable for large scale soft furniture production like large sofas, recliners and soft beds. The wide crown structure is suitable for thick linen, leather, sponge and composite materials. It effectively solves the problem of fabric displacement and wrinkles caused by long-term extrusion, and improves the overall durability and flatness of the finished furniture.
-
Acoustic Panel & Insulation Material Fastening
SINU-MANUFACTURED 80 Series STEALS ARE COMMONLY USED FOR INDOOR SOUND-ABORTING PANELS, THERAPOTIAL INSULATION COTTON AND FIREPROX The fine wire design will not damage the porous structure of sound insulation materials. The strong clamping force ensures lightweight boards' firm adhesion. It meets decoration, construction and audio-visual room renovation fastening requirements.
-
Heavy-Duty Textile & Industrial Accessories Fixing
These staples are suitable for heavy textile processing such as curtain lining, tent fabric and industrial filter cloth fixing. It has excellent tensile strength to prevent staples from loosening or falling off when the textile is stretched and pulled. In manufacturing enterprises, automatic textile processing equipment meets the standard specifications, improving the efficiency of production and qualification rates.
What Global Professionals Say – Sinsun 80 Series Staples Reviews from Europe, Australia & Africa
Verified B2B feedback from Netherlands, Germany, Australia, Poland, Portugal, and Turkey. No jams, straight feeding, clean clinch. Real ratings from upholstery shops and furniture manufacturers.
“Switched from a premium German brand as their prices keprising.p. Sinsun 80/10 staples drive just as clean through oak frames and the jam rate actually decreased My Berlin workshop runs 3 tackers full time with zero misfeeds in the last 2 months.”
In our French factory we assemble 500 dining chairs every week. Staples has to feed perfectly or the production line halts. The Sinsun 80/12 galvanized runs as smooth as anything we have ever imported, at a 35 percent lower landing cost. “Shifted three pallimmediately."ay.”
Precision is reqfor Volvo and Scania trucks' interior trim.rucks. The 21 gauge Nissan 80 spassess goes through leather without marEven in high-humidity winter shops, there are no jams.idity. Today, Swedish workshops trust Sinsun.
“Campervan interiors are subjected to dust, heat and coastal humidity. We needed 316 stainless 80 series staples that would not corrode after six months on Mediterranean roads. Sinsun showed up. “These staples go clean into the fiberglass and the marine finish still looks new after a year.”
High-Frequency FAQ for Sinsun 80 Series Staples
Q1
What is the normal crown width of Sinsun 80 Series staples?
A: It features a standard 12.8mm (1/2 inch) wide crown, exclusive to 80-series staples.
Q2
What wire gauge does 80 Series Staples belong to?
A: This series uses unified 21 AWG fine wire in industrial standard specification.
Q3
Which staple guns use Sinsun 80 series staples?
A: Compatible with all popular 80-type pneumatic and electric staple guns in the world.
Q4
What leg length options are available for 80 series staples?
A: Available in complete sizes from 4mm to 19mm for different fastening thicknesses.
Q5
What kind of materials are applicable to outdoor scenarios?
A: What type of staple is recommended for outdoor humid environments? A: 80 series 304 stainless steel staples.
Q6
For what materials are 80 series staples best?
A: Excellent for carpets, thick fabrics, foam, acoustic panels and soft upholstery materials.
Q7
What is the benefit of wide crown 80 series staples?
A: More stress area means more holding force for thick and soft materials.
Q8
Do you support customized surface treatments for mass orders?
A: Yes, we offer customized galvanized, black oxide and polishing treatments.
Q9
What is the packing quantity for the different sizes?
A: 4-16mm: 10000 PCS/box, 19mm: 5000 PCS/box Packing can be tailored.
Q10
Are 80 series staple samples free from Sinsun?
A: Free samples service is available for global B2B customers for quality verification.
Why Sinsun for 80 Series Staples? Factory Direct, Tighter Tolerances, Anti-Jam Collation, 24-Hour B2B Support
Sinsun is a certified fastener manufacturer. We produce, not rebrand. Tighter crown tolerances (±0.10mm), anti-jam resin bonding, in-house QA (ASTM F1667). Available for OEM and bulk B2B shipments worldwide.
SINSUN
Sinsun vs. Resellers – We Are The Factory
●Tighter tolerances: Crown variance ≤ ±0.10mm (industry typical ±0.15–0.20mm). Smooth feeding, fewer jams, consistent strip alignment.
● Lower pricing: No intermediate markup. Direct factory pricing for B2B orders from 50,000 pieces up to full container loads.
● Faster custom runs: Need a non-standard leg length like 80/9, a specific colour (black, copper, beige), or custom packaging? We adjust tooling within days, not weeks. Resellers cannot do this.
● Certified quality: Our QA references ASTM F1667 dimensional standards and B117 salt-spray testing (48–96 hours for galvanized finishes).
Sinsun: We Fasten Your Trust, Build Your Success.
Keep In Touch
TO KNOW MORE ABOUT Sinsun, PLEASE CONTACT US！
We are committed to providing you with the best quality service and look forward to communicating with you to solve problems together and bring you a better experience.
our experts will solve them in no time.