Inconsistent Torque Performance

Poorly manufactured square head cap screw dimensions cause socket slippage and assembly failures. Result: 12–15% scrap rate on the line.

Aesthetic & Protection Gaps

White caps for screw heads that yellow, crack, or pop off after 6 months. Unsightly corrosion around exposed fasteners damages brand perception.

Supply Chain Fragmentation

Sourcing square head cap screw from one supplier and white caps for screw heads from another doubles logistics cost and complicates QA.

Hidden TCO & Compliance Risks

Non-compliant fasteners (RoHS, REACH, CE) lead to customs holds and project delays. 37% of buyers report at least one compliance incident per year.

Factory-Direct Pricing

Eliminate intermediaries. Save 22–32% on every square head cap screw and white caps for screw heads order.

Material & Dimensional Precision

Grade 4.8, 8.8, 10.9, and 12.9 carbon steel & stainless steel. White caps UV-stabilized ABS, tight-fit tolerance ±0.05mm.

One-Stop Compliance

All products certified: ISO 9001, CE, RoHS, FCC, REACH. Full traceability from melt to shipment.

High-Speed Delivery

Lead times from 12 working days for standard sizes. Air freight, sea freight, or express — we track every lot.

OEM/ODM Customization

Custom head markings, special drives, unique cap colors, and packaging. White caps for screw heads available in RAL and Pantone matches.

ERP Integration & EDI

Direct integration with SAP, Oracle, and major procurement platforms. Streamline your PO-to-pay cycle.

Agricultural Machinery

A leading German tractor OEM replaced their dual-supplier model with Boen’s integrated square head cap screw + white caps for screw heads. Result: 27% lower fastener cost and zero cap failures in 18-month field trial.

Construction & Structural Fixings

A US-based steel building contractor standardized on Boen’s high-strength square head cap screw (Grade 10.9) with matching white caps for interior finishes. Saved $0.12 per joint and reduced inspection rejections by 41%.

Automotive Component Assembly

A French Tier-1 supplier uses Boen’s square head cap screw in engine mounting brackets. White caps protect against corrosion and debris. Overall line yield improved by 6.2%.

Q1: What sizes of square head cap screw do you offer?

We supply M6 to M30 (metric) and 1/4″ to 1″ (UNC/UNF) in grades 4.8, 8.8, 10.9, and 12.9. Custom lengths and drive styles are available for OEM orders. White caps for screw heads are matched to each head size.

Q2: Are white caps for screw heads UV-stable and weather-resistant?

Yes. Our white caps are molded from UV-stabilized ABS or polycarbonate. They withstand 1,000+ hours of accelerated UV testing (ASTM G154) and maintain color stability in outdoor applications for 5+ years.

Q3: What is the minimum order quantity (MOQ)?

For standard square head cap screw sizes, MOQ is 5,000 pcs per size. For white caps for screw heads, MOQ is 10,000 pcs. Sample orders (50–200 pcs) are available for qualification at free sample with freight collect.

Q4: How do you ensure quality consistency for long-running contracts?

We implement SPC (Statistical Process Control) on every production lot. Dimensional inspection, hardness testing, and salt spray tests are performed per ISO 9001. A full Certificate of Conformance (CoC) is included with each shipment. Third-party inspection (SGS, TÜV, Bureau Veritas) is welcomed.

Q5: What are the shipping options and costs to the USA/Europe?

We offer FOB Tianjin, CIF to major ports (Los Angeles, Hamburg, Rotterdam, Felixstowe), and DDP for qualified buyers. Sea freight takes 25–35 days; air freight 5–7 days. We consolidate shipments to reduce your per-unit logistics cost by up to 18%.

Q6: Can you customize the white caps with my company logo or color?

Absolutely. We offer OEM/ODM customization for white caps for screw heads including embossed logos, custom RAL/Pantone colors, and anti-static materials. Tooling cost is typically $200–$600 per design, and lead time is 15–20 working days.

Thomas Müller
Procurement Manager, AgriTech GmbH (Germany)

“We switched to Boen for square head cap screw and white caps 18 months ago. Our reject rate dropped from 4.7% to 0.3%. The factory-direct pricing saved us €38,000 annually. Highly reliable.”

James Rodriguez
Supply Chain Director, BuildRight Construction (USA)

“Boen’s ability to deliver both square head cap screw and matching white caps for screw heads in one shipment simplified our logistics. Lead times are consistently 2–3 weeks faster than our previous supplier.”

Sarah Chen
Operations Manager, EuroAuto Parts (France)

“The technical support from Boen is outstanding. They helped us select the right grade and coating for our engine mounts. The white caps have zero yellowing after 2 years in the field. Excellent partner.”

David Okafor
CEO, Pan-African Industrial Supply (Nigeria)

“Boen’s DDP shipping to Lagos made procurement effortless. The square head cap screw quality is consistent, and the white caps are a hit with our furniture clients. We’ve tripled our order volume in 12 months.”