Inconsistent dimensions

Head heights vary by ±0.3 mm – your assembly line jams, costing $2,400/hour in downtime.

Hidden logistics costs

Split shipments, partial containers, and 30% higher freight per kg due to poor packaging.

Certification gaps

No CE, FCC, RoHS documentation – your project fails compliance audit and gets red-flagged.

Lead time surprises

“45 days” becomes 75 days. Your site stands idle, penalties pile up – up to $5,000/day.

Factory-Direct Pricing

No middlemen. Our m3 socket head and m4 socket cap orders ship directly from our Handan plant. Save 22–37% vs. distributor pricing.

Precision & Consistency

CNC-turned m2 5 socket and m3 8mm cap heads with hex socket tolerance ±0.05 mm. Every batch includes a COA.

Global Compliance

Full CE, FCC, RoHS, ISO 9001 documentation. m20 socket and m6 x 20 grades meet ASTM A574 / DIN 912.

High-Speed Delivery

Stock M2–M24 in 12.9/10.9/8.8 grades. 45–60% of orders dispatched within 7 days. Express options available.

OEM/ODM Capability

Custom m2 cap head lengths, special coatings (Dacromet, Geomet, zinc-nickel), and private labeling for building OEMs.

ERP Integration

Real-time inventory & order tracking via EDI/API. Reduce procurement admin time by 30%.

David M. – Procurement Lead, UK
Construction Equipment Ltd.

“We switched from a German supplier to Boen for m20 socket and m24 socket cap screws. Cost down 31%, lead time cut from 10 weeks to 4 weeks. Quality is consistent.”

Anna K. – Technical Director, Germany
Automotive Tier 1 Supplier

“The m3 hex socket and m4 socket head screws passed our 200-hour salt spray test. Full documentation and PPAP support – highly recommended.”

Carlos R. – Operations Manager, Spain
Industrial Fastener Distributor

“We stock m2 cap head, m3 socket head, and m6 x 20 from Boen. Zero defect rate in 2024 across 12,000+ pcs. Their logistics team is exceptional.”

Q: What sizes of socket cap head screws do you offer for building applications?

A: We cover the full range from M2 to M24, including m2 5 cap head, m3 socket, m4 cap, m20 cap, and m24 socket. Custom lengths and coatings are available.

Q: Do you provide certificates like CE, ISO, and RoHS?

A: Yes. All our m2 socket head and m4 socket cap products come with ISO 9001, CE, RoHS, and FCC compliance documentation. Third-party testing reports are available on request.

Q: What is the minimum order quantity (MOQ) for trial orders?

A: For new customers, no MOQ on standard m3 socket cap, m4 cap head, and m6 x 20 sizes. We offer free samples (you pay shipping).

Q: How do you handle logistics for international shipping?

A: We ship via FOB, CIF, DDP terms. Our logistics team consolidates m2 5 socket, m20 socket, and other fasteners into full containers to reduce your freight cost by 18–25%.

Q: Can you produce custom lengths or special coatings?

A: Absolutely. We offer OEM/ODM for m3 hex socket, m4 socket head, and m24 socket with coatings like Dacromet, Geomet, HDG, and zinc-nickel. Lead time for custom orders is 15–25 days.

Q: What payment methods do you accept?

A: We accept T/T, L/C, Western Union, and PayPal for initial orders. For established relationships, net 30/60 terms are available (subject to credit approval).

Q: How do you ensure quality consistency for large orders?

A: Every batch of m3 8mm, m2 cap head, and m20 cap screws undergoes 100% dimensional inspection, hardness testing, and a Certificate of Analysis (COA) before shipment.

Lars J. – Denmark

⭐⭐⭐⭐⭐ “The m3 socket head screws arrived 3 days early. 39% cheaper than my previous supplier. Will order m20 cap next month.”

Sophie L. – France

⭐⭐⭐⭐⭐ “Excellent support from Mary. m4 socket cap samples tested perfectly. We’re now a regular customer for M3–M24.”

Tom H. – USA

⭐⭐⭐⭐⭐ “We needed m2 5 socket and m6 x 20 urgently. Boen delivered in 9 days door-to-door. Quality is outstanding.”