1.25 x 120mm 16mm M3x8 Giant Button Head Coupler | Exporter
Stop overpaying for inconsistent quality. Our giant button head coupler series delivers ISO-certified precision, factory-direct pricing, and lead times that keep your production lines running.
โ Free samples available | โ OEM/ODM accepted | โ Global shipping
Every year, procurement managers and technical directors face the same silent drain on productivity โ fastener failures that cause downtime, rework, and safety risks. Here are the pain points we hear most often:
Premium-brand couplers carry 30-50% price premiums that inflate your BOM. Low-cost alternatives often fail within weeks, doubling your replacement spend.
Thread pitch mismatches (e.g., m10 1.25 x 120mm rods that don't fit standard nuts) cause assembly delays and field failures. Reject rates of 8-15% are common with unverified suppliers.
Late deliveries from overseas suppliers force costly expedited shipping. 42% of procurement managers report missed production targets due to fastener supply chain delays.
Missing or fraudulent certifications (CE, ISO, RoHS) expose your company to liability risks and import customs delays. Verifying supplier credentials costs time and money.
Most suppliers refuse small batch OEM/ODM orders. You need a partner who can handle custom thread lengths, head styles, and material grades for your specific application.
Time zone differences, language barriers, and slow response times turn simple order changes into multi-day delays. Your operations manager deserves better.
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Our giant button head coupler series is engineered to eliminate the compromises you've been forced to accept. Whether you need m10 1.25 x 120mm threaded rods, m8 x 16mm button head screws, or m3x8 button head micro fasteners โ every piece is manufactured under ISO 9001 quality management with full material traceability.
| Parameter | Specification |
|---|---|
| Thread Size | M10 x 1.25 (coarse), M8 x 16mm, M3 x 8mm |
| Thread Length | 120mm (full thread / partial thread options) |
| Head Style | Giant button head (low-profile, wide bearing surface) |
| Head Diameter | 16mm (ยฑ0.2mm tolerance) |
| Material Grade | Carbon Steel 8.8 / 10.9 / 12.9, Stainless Steel 304 / 316, Alloy Steel |
| Surface Finish | Zinc plated (clear/yellow/blue), HDG, Dacromet, black oxide, plain |
| Tensile Strength | 800 โ 1,200 MPa (depending on grade) |
| Hardness | HRC 22โ32 (carbon steel), HRC 18โ25 (stainless) |
| Standards Compliance | ISO 898-1, DIN 912, DIN 7991, ASME B18.3 |
| Certifications | ISO 9001:2015, CE, RoHS, REACH |
| Packaging | Bulk carton (25kg), small box (1kg/5kg), OEM private label |
| MOQ | 1,000 pcs (stock sizes) | 5,000 pcs (custom specs) |
* All measurements are nominal. Tolerances per ISO 2768-m. Test reports available upon request.
The giant button head design provides a larger clamping surface for vibration-prone assemblies. Used in m10 1.25 x 120mm hitch pins and tiller attachments.
M8 x 16mm button head couplers secure interior panels, seat frames, and underbody shields. Our 12.9-grade alloy steel option handles high-torque chassis applications.
Button head coupler designs reduce snagging risks on conveyor systems and robotic arms. The m3x8 button head variant is ideal for control panel enclosures.
Giant button head coupler used in steel-to-steel connections, scaffolding clamps, and heavy-duty shelving. The 16mm head diameter distributes load evenly.
Sell on Amazon, Shopify, or eBay with confidence. We provide OEM private labeling, barcode-ready packaging, and drop-ship-friendly carton sizes.
โ Fastener performance guarantee: Every batch is tested for tensile strength, hardness, and thread gauge compliance. Full mill test certificates (MTC) included with every shipment.
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With 10+ years of export expertise and products shipped to 30+ countries, Handan Boen Fastener Manufacturing Co., Ltd. has become the preferred giant button head coupler exporter for discerning buyers in Europe, America, and Southeast Asia.
We own the production line โ no middlemen. Save 25-40% compared to distributor pricing. Our m10 1.25 x 120mm giant button head coupler starts at $0.18/pc (FOB Tianjin, Qty 10,000+).
ISO 9001:2015 certified facility. Every button head coupler is inspected for thread pitch, head height, and surface finish. Reject rate โค 0.8% โ verified by third-party audits.
Need a giant button head with a specific drive type (Torx, hex, Phillips)? We support custom thread lengths, head diameters, and material grades. MOQ from 1,000 pcs.
Stock sizes ship within 7-15 days. Custom orders: 20-30 days. We offer FOB, CIF, DDP, and EXW terms. Real-time tracking via our logistics portal.
From material selection to logistics tracking, our English-speaking team provides 24/7 support. We handle all documentation: COO, packing list, invoice, and customs clearance.
All products meet CE, RoHS, REACH, and ISO 9001 standards. We provide FCC, UL, and SGS testing reports on request. Your compliance is our priority.

Our giant button head coupler series is specified by engineering teams and procurement departments across multiple sectors. Here's who trusts us โ and why.


Thomas Mรผller
Procurement Manager, Germany
"We switched to Boen's m10 1.25 x 120mm giant button head coupler for our conveyor systems. 37% cost reduction with zero quality issues in 18 months. The MTC reports give us full traceability."

Sarah Chen
Supply Chain Director, USA
"The m8 x 16mm button head couplers we ordered arrived 10 days ahead of schedule. Consistent quality across 50,000 pcs. We've now added Boen to our approved vendor list."

David Okonkwo
Operations Manager, Nigeria
"We needed a reliable giant button head coupler exporter for our agricultural equipment line. Boen's team helped us customize the m3x8 button head with a zinc-nickel coating. Outstanding service."

A giant button head coupler features a larger head diameter (e.g., 16mm vs. standard 8-10mm) and a longer thread length (up to 120mm). This design provides greater clamping force, better load distribution, and reduced risk of pull-through in heavy-duty applications. Our m10 1.25 x 120mm variant is the most popular choice for structural connections.
We offer carbon steel (grades 8.8, 10.9, 12.9), stainless steel (304, 316), and alloy steel. For corrosion-resistant applications, we recommend stainless steel 316 with a passivation finish. For high-torque industrial use, grade 12.9 alloy steel provides the highest tensile strength (1,200 MPa).
Absolutely. We support Torx (T10, T15), Phillips, hex socket, and slotted drive types. Our OEM/ODM service allows you to customize head markings, thread length (ยฑ0.5mm), and surface finish. Minimum order quantity for custom m3x8 button head is 1,000 pcs.
All our fasteners are manufactured under ISO 9001:2015 quality management. We provide CE, RoHS, REACH, and FCC compliance documentation. For specific requirements, we can arrange SGS, TรV, or UL third-party inspections. Full material test reports (MTR) and dimensional inspection reports are included with every shipment.
We offer FOB (Tianjin/Qingdao), CIF, DDP, and EXW terms. For stock sizes (including m10 1.25 x 120mm and m8 x 16mm button head), lead time is 7-15 days. Custom orders typically ship in 20-30 days. Shipping to US East Coast takes approximately 25-30 days by sea, and 5-7 days by air.
Yes! We provide free samples for qualified buyers. You pay only the shipping cost. We can send up to 10 pieces of the giant button head coupler in your required size and finish. Contact our team to request your sample kit today.
Our standard MOQ is 1,000 pcs per size for stock items. For custom specifications (including giant button head with special coating or thread length), the MOQ is 5,000 pcs. We can accommodate smaller trial orders for new customers โ please discuss with our sales team.
Simply contact our team with your required specifications (size, material, grade, quantity, and delivery terms). We accept T/T bank transfer, L/C, and PayPal (for sample orders). We require 30% deposit and 70% against copy of shipping documents. Your dedicated account manager will guide you through the entire process.
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Don't let inconsistent fastener quality and inflated pricing eat into your margins. Join 200+ industrial buyers who trust Boen Fasteners as their giant button head coupler exporter.
Free samples available
Pay only shipping
Money-back guarantee
If quality fails, we refund
24/7 English support
We reply in 2 hours
Handan Boen Fastener Manufacturing Co., Ltd. | Est. 2010 | ISO 9001:2015 Certified | Products shipped to 30+ countries

James Liu
Senior Fastener Engineer & Export Specialist | 15+ Years in Industrial Fastening
James has spent over a decade designing and sourcing precision fasteners for global industrial clients. He leads the technical team at Handan Boen Fastener and has personally overseen the quality control of over 500 million fasteners shipped to 30+ countries. His expertise covers thread engineering, material science, and supply chain optimization for B2B buyers.

๐ธ Real photos from our production facility in Handan, China