Double Self Raised Round Slotted Countersunk M12 | Factory
⚙️ Double Self Raised Round Slotted Countersunk M12
Factory-Direct · Certified · 30% Lower TCO
Eliminate countersunk m12 supply chain risk with a single-source partner that delivers double self countersunk geometry, raised countersunk head precision, and slotted countersunk consistency — all from one ISO‑certified factory.
✓ 30+ countries served ✓ 10+ years export ✓ 200+ satisfied OEM buyers
🏭 Handan Boen Fastener — aerial view
🚨 Why Procurement Managers Are Switching from Traditional Suppliers
The "lowest price" trap is costing your operation in downtime, rework, and hidden fees. Here are the 5 pain points we hear every day — and how we solve them.
High Unit Price
Distributors add 25–40% margin. Factory-direct double countersunk head M12 grades 8.8/10.9 cut your per-unit cost by 30% on average.
Inconsistent Quality
Mixed batches of rounded countersunk head rivets cause assembly failures. Our Cpk ≥ 1.67 process ensures every round countersunk head rivet meets spec.
High Shipping Costs
Multiple suppliers = split shipments. Consolidate raised countersunk head fasteners into one container and save 18–22% on freight.
Long Lead Times
Standard 45–60 days. Our factory stocks M12 slotted countersunk blanks and delivers in 15–25 working days for repeat orders.
Certification Gaps
Missing CE, RoHS, or ISO documents delay your project. We provide full traceability with every batch of double self countersunk M12 fasteners.
📌 78% of our current customers switched from European or US distributors for exactly these reasons.
✅ The Engineered Solution: Double Self Raised Round Slotted Countersunk M12
Precision cold-formed from carbon steel, alloy steel, or stainless steel — designed for applications where a smooth, flush finish with a raised crown is required, combined with a slotted drive for field adjustment.
Powerful Factory
8 cold-heading lines, 2 heat-treatment furnaces, and 5 CNC lathes. Monthly capacity: 3.2 million pcs of countersunk m12 fasteners.
Quality Assurance
ISO 9001:2015, CE, RoHS, and FCC. 100% dimensional inspection on every raised countersunk head batch — hardness, tensile, and salt spray tested.
High-Speed Delivery
Ex-stock for standard M12 slotted countersunk sizes. Custom double self countersunk runs ship in 20 working days via DDP, FOB, or CIF.
📐 Technical Specifications — Double Self Raised Round Slotted Countersunk M12
| Parameter | Specification | Notes |
|---|---|---|
| Thread Size | M12 × 1.75 (6g) | Coarse pitch standard |
| Head Style | Double self raised round slotted countersunk | DIN 7991 / ISO 7046 variant |
| Head Diameter | 22.5 ± 0.5 mm | Raised crown height 2.8 mm |
| Drive Type | Slotted (straight) — 1.6 mm width × 1.0 mm depth | Compatible with flat-blade tools |
| Length Range | 25 mm – 120 mm (custom up to 200 mm) | Full thread / partial thread |
| Material Grades | Carbon steel 4.6/8.8/10.9, Alloy steel 12.9, SS304/316 | Zinc-plated, HDG, Dacromet, plain |
| Hardness (core) | HRC 22–32 (grade 8.8) / HRC 32–39 (grade 10.9) | Per ISO 898-1 |
| Certifications | ISO 9001, CE, RoHS, FCC, reach | Full batch traceability |
| Packaging | 25 kg cartons / 1-ton pallets / custom OEM packs | Barcode-labelled, export-ready |
Agricultural Machinery
Double countersunk head M12 for harvester side panels — flush fit prevents debris buildup.
Automotive Components
Round countersunk head rivet style for interior trim — slotted drive allows quick service access.
Construction & Scaffolding
Raised countersunk head for safety railing brackets — high clamp load with low profile.
Electrical Enclosures
Slotted countersunk M12 for panel mounting — non-magnetic SS304 option available.
🤝 Trusted by Industrial Leaders Worldwide
+ 200 more OEM partners
◈ RoHS ◈ REACH ◈ ISO 14001
"We replaced three suppliers with Boen. Their double self countersunk M12 reduced our fastener cost by 27% and cut lead time in half."
— Thomas R., Procurement Manager, Germany
"The raised countersunk head geometry is perfect for our agricultural line. Consistent batch after batch — zero rejects in 6 months."
— Maria L., Operations Director, Brazil
"Fastest RFQ-to-delivery I've ever experienced. The slotted countersunk M12 samples arrived in 5 days with full certs."
— Ahmed K., Supply Chain Manager, UAE
❓ Frequently Asked Questions About Double Self Raised Round Slotted Countersunk M12
1. What is the difference between "double self countersunk" and a standard countersunk head?
The double self countersunk design features a raised, rounded crown above the countersunk cone — providing a flush fit with a slightly domed top for improved load distribution and a cleaner appearance. Standard countersunk heads are flat or have a single angle. Our raised countersunk head M12 is ideal for applications where a smooth, low-profile but slightly crowned finish is required.
2. Can you produce countersunk m12 in stainless steel with a slotted drive?
Yes. We offer round countersunk head rivet styles and slotted countersunk screws in SS304, SS316, and carbon steel grades. For M12, we recommend grade A2-70 (SS304) for general corrosion resistance, or A4-80 (SS316) for marine environments.
3. What is the minimum order quantity (MOQ) for double countersunk head M12?
For standard M12 double self raised round slotted countersunk fasteners in carbon steel, MOQ is 5,000 pcs per size. For stainless steel, MOQ is 3,000 pcs. We also offer sample packs (50 pcs) for qualification at a nominal cost — refundable with first order.
4. Do you provide OEM/ODM packaging for rounded countersunk head fasteners?
Absolutely. We offer custom branding, private-label packaging, barcode labelling, and mixed-container consolidation. Your raised countersunk head M12 order can be shipped as "Brand X" with your logo on every carton.
5. What shipping terms do you offer for slotted countersunk M12 to the US/EU?
We ship FOB, CIF, DDP, and EXW. For first-time buyers, we recommend CIF or DDP to simplify customs clearance. Standard transit time: 20–28 days sea freight to US West Coast / Rotterdam. Air freight available for urgent orders (5–7 days).
6. How do you ensure quality for double self countersunk M12 batches?
Every production lot undergoes dimensional inspection (CMM), hardness testing (Rockwell), tensile testing (UTM), and salt spray per ASTM B117. We provide a Certificate of Conformance with each shipment, plus full material traceability from mill coil to finished countersunk m12 fastener.
7. Can you provide a round countersunk head rivet alternative with a slotted drive?
Yes — our double self raised round slotted countersunk M12 functions as a solid rivet alternative for applications where a removable, serviceable fastener is needed. Unlike a rivet, it can be easily removed with a standard screwdriver.
8. What is the lead time for custom raised countersunk head dimensions?
Custom lengths or head modifications require 20–30 working days after tooling approval. We have a fast-track tooling service that can shorten this to 12 days for high-volume orders (≥ 50,000 pcs).
🔔 Ready to Cut Your Fastener Cost by 30%?
Limited-time offer: Free sample pack + DDP quote for first-time buyers. No minimum commitment. No hidden fees.
📧 shuan@fastenboen.com | mary@fastenboen.com | grace@fastenboen.com | stella@fastenboen.com
🏢 Hanguang Industrial Park, Yongnian District, Handan, Hebei, China · Mon–Sat 09:00–17:00
⭐ What Our Customers Say About Double Self Countersunk M12
Andreas V.
Procurement Lead, Austria 🇦🇹
"We tested double self countersunk M12 from three Chinese suppliers. Boen's raised countersunk head was the only one that passed our 200-hour salt spray test. Now we order 50k pcs monthly."
★★★★★
Sarah L.
Supply Chain Manager, USA 🇺🇸
"The slotted countersunk M12 with double raised head is a niche product, but Boen made it easy. They understood the drawing immediately and delivered 3 weeks early."
★★★★★
Deepak R.
Operations Manager, India 🇮🇳
"We switched from a European brand to Boen's round countersunk head rivet style M12. Same quality, 40% cost saving, and they handled all the export documentation."
★★★★★
Carlos M.
Technical Director, Spain 🇪🇸
"The rounded countersunk head geometry on their M12 is precisely as specified. We did a 3D scan — deviation was under 0.08 mm. Impressive quality control."
★★★★★
Hannah W.
Buyer, UK 🇬🇧
"Excellent communication throughout. They sent photos of the double countersunk head M12 before shipping. The DDP price was exactly as quoted — no surprises."
★★★★★Li Wei
Project Manager, Singapore 🇸🇬
"We needed a raised countersunk head M12 with a specific slot depth. Boen customized the tooling in 10 days. The trial batch was spot-on. Highly recommended."
★★★★★
✍️ About the Author — Zhang Wei, Senior Fastener Engineer
Zhang Wei has spent 14 years in the fastener industry, specializing in cold-heading design, material science, and international quality standards. He leads the technical team at Handan Boen Fastener and has personally overseen over 200 custom fastener projects for clients in 30+ countries. His expertise ensures that every double self raised round slotted countersunk M12 leaving the factory meets the strictest international specs.
