Aluminium Socket Head Cap Screws & Aluminum Socket Cap | Buy
Tired of overpaying for inconsistent quality? Get aerospace-grade aluminum socket cap screws at factory-direct pricing โ with full traceability, ISO 9001 certification, and 10-day lead times.
โ Free samples available | โ 30+ countries served | โ OEM/ODM welcome
Many suppliers quote low per-unit prices but add 30-50% in hidden surcharges for raw material fluctuations, packaging, and minimum order quantities. Your final invoice never matches the quote.
Substandard aluminum socket cap screws can vary by 0.2mm in head diameter, causing assembly failures, rework, and production delays. One bad batch can cost you an entire production run.
Cross-border logistics for fasteners can add 2-4 weeks of uncertainty. Without proper tracking and consolidated shipping, you end up overpaying for air freight to meet deadlines.
Missing or forged CE, RoHS, or ISO documents can block your goods at customs or expose you to liability. You need full traceability, not just a piece of paper.
โ Every year, 24% of procurement teams report fastener-related production delays. Don't be one of them.
We own the production line โ from raw aluminium alloy to finished aluminium socket head cap screws. No middlemen, no markup. You get 30-40% cost savings compared to distributor prices.
Our aluminum socket cap screws are manufactured to ISO 4762 / DIN 912 / ANSI/ASME B18.3 standards. Tolerances held to ยฑ0.05mm. 100% dimensional inspection before shipping.
10+ years shipping to 30+ countries. We handle consolidated freight, customs documentation, and door-to-door delivery. Average lead time: 10-15 days for standard orders.
ISO 9001:2015, CE, RoHS, REACH compliant. We provide mill test reports, batch traceability, and certificate of conformity with every shipment. Your QC team will approve โ guaranteed.
Need a custom head marking, special thread length, or unique packaging? We offer full custom design support with fast prototyping. Minimum order quantity: as low as 2000 pieces for custom specs.
From material selection to logistics tracking, your dedicated account manager keeps you informed. We speak your language โ technical English, clear communication, no runaround.
| Parameter | Specification / Range | Notes |
|---|---|---|
| Material | Aluminium Alloy 2011, 2024, 6061, 7075 | Custom alloy per application |
| Thread Standards | Metric (M2 โ M24) | UNC / UNF (#4 โ 1") | ISO 4762 / DIN 912 / ANSI B18.3 |
| Strength Grade | 12.9 (aluminium equivalent) | Tensile strength up to 570 MPa |
| Surface Finish | Plain, Anodized (Clear / Black), Passivated | Corrosion resistance & aesthetics |
| Tolerance Class | 6g (thread) / h13 (head) | Consistent fit, every batch |
| Length Range | 3mm โ 200mm (custom lengths available) | ยฑ0.5mm length tolerance |
| Certifications | ISO 9001, CE, RoHS, REACH | Full documentation provided |
* All specifications are per ISO 4762 / DIN 912 / ANSI B18.3 standards. Custom specs available on request.
Battery pack enclosures, lightweight chassis components, and motor assemblies. Weight reduction of up to 60% vs steel fasteners.
Interior fittings, avionics racks, and UAV frames. 7075 aluminium socket head cap screws meet MIL-Spec standards.
Robotic arms, conveyor systems, and packaging equipment. Non-magnetic and corrosion-resistant for cleanroom environments.
Server racks, antenna mounts, and enclosure fasteners. Non-sparking and lightweight for sensitive equipment.
Harvesters, irrigation systems, and tractor attachments. Resistant to fertilizers and outdoor exposure.
Deck hardware, navigation equipment, and subsea enclosures. Anodized finish resists saltwater corrosion.
๐น Q1: What grades of aluminium do you use for socket head cap screws?
We primarily use 6061-T6, 2024-T4, and 7075-T6 aluminium alloys. 6061 is our most popular for general industrial use, while 7075 is recommended for high-strength aerospace and racing applications. All materials are 100% traceable with mill test reports.
๐น Q2: What is the minimum order quantity (MOQ) for aluminium socket cap screws?
For standard sizes (M3-M12), our MOQ is 500 pieces per size. For custom specifications or OEM designs, the MOQ starts at 2,000 pieces. We also offer sample packs for pre-production testing โ just cover shipping.
๐น Q3: How do you ensure quality control for aluminium socket head cap screws?
Every batch undergoes 3-stage QC: incoming raw material inspection (chemical composition + hardness), in-process dimensional checks (thread gauge + optical comparator), and final inspection (torque test, surface finish, packaging). We provide a Certificate of Conformance with every shipment.
๐น Q4: What are the typical lead times for delivery to the USA or Europe?
Standard orders are produced and shipped within 10-15 working days. Express delivery (7-10 days) is available for urgent orders. We use consolidated sea freight, air freight, or door-to-door courier depending on your volume and urgency. We handle all customs documentation.
๐น Q5: Do you offer custom head markings or packaging?
Absolutely. We provide OEM/ODM services including custom laser marking, head stamps, private labeling, and tailored packaging (bulk bags, retail boxes, or kitting). Send us your drawing or specification, and we'll prototype within 5-7 days.
๐น Q6: Are aluminium socket head cap screws suitable for outdoor or marine use?
Yes, especially when anodized or passivated. The natural oxide layer on aluminium provides good corrosion resistance. For marine environments, we recommend 6061 or 7075 with a clear or hard anodized finish. We also offer RoHS and REACH-compliant surface treatments.
๐น Q7: What payment methods do you accept for international orders?
We accept T/T (bank transfer), L/C (letter of credit), and PayPal for smaller orders. For first-time buyers, we typically require a 30% deposit with 70% balance against the shipping documents. We also offer open account terms for qualified repeat customers.
๐น Q8: Can I get a sample before placing a bulk order?
Yes, we offer free samples (standard sizes, up to 10 pieces) with you covering the shipping cost. Custom samples are available at a nominal fee, refundable with your first order. Contact us to arrange your sample kit.

Erik Johansson
Scania AB ยท Sweden
"We've been sourcing aluminium socket head cap screws from Boen for 18 months. Zero defects across 12,000+ units. Their consistency beats any European supplier we've tried."

Lisa Tran
SolarTech Solutions ยท USA
"The aluminum socket cap screws we ordered for our solar panel mounting systems were perfect. Fast shipping, great communication, and 20% cheaper than our previous supplier. Will definitely reorder."

David Mueller
Bosch Rexroth ยท Germany
"Very impressed with the quality and documentation from Boen. The 7075 alloy socket screws performed exactly as specified. Delivery was 3 days early โ a pleasant surprise."

โ๏ธ About the Author โ James Whitfield
Senior Industrial Fastener Engineer & Supply Chain Analyst
James has 14 years of experience in fastener manufacturing and global sourcing. He has audited over 40 factories across Asia and Europe, and has written extensively on fastener standards, material science, and procurement optimization. He currently serves as the Technical Director at Handan Boen Fastener Manufacturing Co., Ltd.
Limited-time offer: Free sample kit with your first inquiry. Get a quote within 24 hours.
โ Risk-free guarantee: Free samples available | 30-day money-back on first order | Full compliance documentation provided
Handan Boen Fastener Manufacturing Co., Ltd. ยท Hanguang Industrial Park, Yongnian District, Handan City, Hebei Province, China ยท Mon-Sat 09:00-17:00
๐ Trusted by Engineering Teams Across 30+ Countries
Handan Boen Fastener Manufacturing Co., Ltd. โ Established 2010, our 12,000mยฒ facility houses 80+ precision CNC machines and automated heat treatment lines. Every batch of aluminium socket head cap screws is tested in our in-house laboratory before shipment.
๐ Brands & Enterprises That Trust Boen
โ Thomas Richter
Procurement Manager, MTU Aero Engines
"We switched to Boen's aluminum socket cap screws for our UAV line. 37% cost reduction with zero quality issues across 6 shipments. The traceability documentation is world-class."
โ Sarah Chen
Operations Director, Helios Robotics
"The aluminium socket head cap screws from Boen consistently meet our tight tolerances. Their 10-day lead time saved our project timeline. Highly recommended for precision applications."
โ Marco Valdez
Supply Chain Manager, AgroTech Industries
"We were skeptical about switching suppliers, but Boen's factory-direct pricing and responsive support won us over. 22% faster shipping than our previous supplier."