Round Head Allen Screw & Round Head Cap Screw | Buy
Premium Round Head Allen Screw & Round Head Cap Screw โ Factory-Direct Quality for Global B2B Buyers
Stop overpaying for inconsistent fasteners. Get ISO-certified round head allen screws and round head cap screws with factory-direct pricing, 10+ years export expertise, and 30+ country delivery โ engineered for automotive, agricultural, and construction applications.
โ Free samples available | โ OEM/ODM supported | โ Fast global shipping
โ ๏ธ The Real Cost of Cheap or Unreliable Fasteners
Every purchasing manager knows the domino effect of a single fastener failure. In 2026, with supply chain margins thinner than ever, these pain points are magnified:
๐ You need a reliable, certified, direct-from-factory partner who understands industrial-grade fasteners โ not a commodity reseller.
โ Boen Fastener: Your Trusted Source for Round Head Allen Screws & Cap Screws
Since 2010, we have delivered over 200 million fasteners to 30+ countries. Hereโs why global buyers choose us for their round head allen screw and round head cap screw needs.
Powerful Factory, Direct Pricing
Own production lines in Handan, Hebei โ 20,000+ sqm workshop. Eliminate middlemen and save 30โ45% on equivalent distributor pricing.
Quality Assurance You Can Trust
Every batch tested for hardness, tensile strength, and thread conformity. ISO 9001, CE, RoHS, FCC certified โ full traceability from melt to finished product.
High-Speed Delivery
Standard orders ship in 10โ18 days. Express options available for urgent production stops. We speak your logistics language.
OEM/ODM & Custom Specifications
Need a unique head marking, special drive depth, or non-standard material? Your design, our expertise โ fast prototyping and volume production.
Global Compliance & Documentation
Full CE, FCC, RoHS, ISO 9001, and IPPC documentation included. Customs clearance support for EU, US, and APAC markets.
One-Stop Service & ERP Integration
From material selection to freight tracking โ a single point of contact. ERP-ready data exchange for seamless procurement workflows.
๐ Technical Specifications โ Round Head Allen Screw & Round Head Cap Screw
| Parameter | Round Head Allen Screw | Round Head Cap Screw |
|---|---|---|
| Drive Type | Hex socket (Allen key) | Hex socket / Phillips / Torx |
| Head Shape | Low-profile dome | Dome head with undercut |
| Material Grades | 304SS, 316SS, 12.9 alloy, 10.9 carbon steel | 304SS, 316SS, 12.9 alloy, 10.9 carbon steel |
| Thread Sizes | M2 โ M24 (metric) | #0 โ 1/2" (inch) | M2 โ M24 (metric) | #0 โ 1/2" (inch) |
| Finish Options | Zinc plated, black oxide, passivated, plain | Zinc plated, black oxide, passivated, Dacromet |
| Certifications | ISO 9001, CE, RoHS, FCC | ISO 9001, CE, RoHS, FCC, GS |
| Packing | Bulk, poly bag, box, custom labeling | Bulk, poly bag, box, custom labeling |
| Typical Lead Time | 10โ18 days (standard) | 10โ18 days (standard) |
๐ Need custom specs? We can match any drawing or sample โ just send your RFQ.
๐ง Where Round Head Allen Screws & Cap Screws Are Used
๐ฌ Real Conversations with Our Clients
โก Fast response, clear communication, and real-time order updates โ that's the Boen promise.
โ Frequently Asked Questions
Q1: What is the difference between a round head allen screw and a round head cap screw?
A: The terms are often used interchangeably, but technically a round head allen screw has a hex socket drive and a low-profile dome, while a round head cap screw typically has a slightly higher head profile and may offer multiple drive options (hex, Phillips, Torx). Both are used for flush or low-profile fastening where high torque is needed. We supply both in metric and inch sizes.
Q2: What materials are available for round head allen screws?
A: We offer 304 stainless steel, 316 stainless steel, 12.9-grade alloy steel, and 10.9-grade carbon steel. For custom applications, we can source duplex or specialty alloys. All materials are certified with full mill test reports.
Q3: Do you provide free samples for qualification?
A: Yes. We offer free samples for standard sizes. You pay only the shipping cost. Samples are dispatched within 3โ5 days. Request yours via our contact form or WhatsApp.
Q4: What is the minimum order quantity (MOQ) for round head cap screws?
A: Our standard MOQ is 10,000 pieces per size, but we are flexible for trial orders or mixed containers. Contact our sales team to discuss your specific volume needs.
Q5: How do you ensure quality consistency across large batches?
A: We follow a three-stage QC process: incoming material inspection, in-process dimensional checks, and final batch testing (hardness, tensile, thread gauge). Every batch is traceable and comes with a Certificate of Conformance (CoC).
Q6: What shipping methods do you use for international orders?
A: We ship via sea freight (FCL/LCL), air freight, and express couriers (DHL, FedEx, UPS). We handle all export documentation and customs clearance support. Typical sea freight to US West Coast takes 18โ25 days.
Q7: Can you produce custom head markings or drive depths?
A: Absolutely. Our OEM/ODM service includes custom head stamps, laser marking, special drive depth, and undercut geometries. Send your drawing or sample for a quick feasibility review.
Q8: What payment terms do you accept?
A: We accept L/C, T/T, Western Union, and secure online payment. For established clients, we offer flexible terms. All transactions are handled with full transparency.
โญ What Our Customers Say
"The round head allen screw batch we ordered exceeded expectations. Dimensional accuracy was spot-on, and the zinc plating was uniform. Our assembly line has zero complaints."
Operations Manager, UK Agri-Parts Ltd.
"We've been sourcing round head cap screws from Boen for 18 months. Their quality consistency and on-time delivery rate (98.7%) make them a trusted partner, not just a vendor."
Supply Chain Director, Milan Industrial Group
"Fast sample turnaround, great communication, and the OEM custom head stamp was exactly what we needed. We've placed three repeat orders already."
Technical Director, Dubai Construction Fasteners
โ๏ธ About the Author
David Lin โ Senior Fastener Engineer & Export Specialist
With 14 years in the fastener industry, David has overseen over 1,200 export shipments of round head allen screws, round head cap screws, and industrial fasteners to 30+ countries. He leads Boen's technical sales team and is passionate about helping buyers find the exact fastener solution for their application โ with the right certification, material, and lead time. Reach him directly at shuan@fastenboen.com.
๐ Start Your Sourcing Journey Today
Don't let unreliable fasteners slow you down. Get factory-direct pricing, ISO-certified quality, and fast global shipping on every round head allen screw and round head cap screw order.
โณ Limited-time offer: Free samples on first inquiry | 5% discount on first container order | Quote in 24h
๐ง shuan@fastenboen.com | ๐ +86 15630072814 | ๐ Daily 09:00 โ 17:00 (GMT+8)
๐ Your information is secure. We respect your privacy and will never share your data.
๐ Trusted by Global Buyers โ 10+ Years of Export Excellence
๐ Trusted by brands across 30+ countries
"We switched to Boen for our round head cap screw supply. Consistent quality, and the documentation made EU customs clearance seamless. 18% cost savings vs our previous distributor."
Procurement Manager, Hannover Agri-Tech
"The round head allen screw samples arrived in 7 days. Production run was flawless โ 0.02% defect rate. That's reliability we can plan around."
Supply Chain Lead, Midwest Conveyor Systems
"Boen's OEM support for custom head markings was a game-changer. We now have our brand on every round head cap screw โ and our customers notice the quality."
Technical Director, Barcelona Industrial Parts