Phillips Head Screw Caps & Phillips Head Screw Covers | Maker
Eliminate corrosion, reduce assembly time by 27%, and secure your supply chain with ISO 9001-certified caps & covers built for automotive, construction & agricultural machinery.
✅ Trusted by 30+ countries · 10+ years export expertise · 48h sample dispatch
Every year, 62% of fastener-related failures in industrial equipment trace back to corroded, loose, or ill-fitting screw caps. Here is what procurement and engineering teams tell us:
➡️ Sound familiar? See how Boen solves each point.

🏭 Boen’s 10,000m² production facility — ISO 9001 certified
From material selection to batch traceability — our caps are designed for zero-failure, low-TCO performance in demanding industrial environments.
SS304, SS316, zinc-plated carbon steel, and nylon PA66. Salt spray test ≥ 200h (ASTM B117). RoHS & REACH compliant.
CNC-machined to ±0.05mm tolerance. Compatible with all standard Phillips head screw drives. 100% go/no-go gauge inspection.
Factory-direct production. 50,000+ pcs daily capacity. Express sample dispatch. Bulk orders shipped 18 days ARO (air) or 30 days (sea).
Each lot marked with heat number + COA. ERP-integrated documentation. ISO 9001:2015 & IATF 16949 ready.
Custom colours, logos, embossing, and packaging. Free design consultation with 48h prototype turnaround.
| Parameter | Standard Grade | Premium Grade | Custom Option |
|---|---|---|---|
| Material | Zinc-plated carbon steel (Fe/Zn8) | SS304 / SS316 / Nylon PA66 | As per customer request |
| Fitment | #1, #2, #3 Phillips drive | #0–#4 Phillips drive | Custom drive profile |
| Salt spray resistance | 72h (ASTM B117) | ≥ 200h (ASTM B117) | Up to 500h |
| Temperature range | -30°C to +80°C | -50°C to +150°C | -60°C to +200°C |
| Certification | RoHS, ISO 9001 | RoHS, REACH, ISO 9001, IATF 16949 | UL, FDA, NSF on request |
| Lead time (bulk) | 25–30 days | 18–22 days | 12–18 days (express) |
📌 All dimensions in mm. Tolerances per ISO 2768-m. Custom sizes welcome — contact our engineering team.
Caps protect screw heads from dust, moisture, and fertilizer corrosion. Used by 3 top-10 tractor OEMs in Europe.
Covers for interior trim, under-hood fasteners. 30% faster assembly vs. tape-capping. Meets VW 80111 & Tesla spec.
UV-stabilized nylon caps for bridge railings, solar mounts, and steel frames. 15-year outdoor warranty available.
Food-grade & anti-static caps for packaging lines, robotics, and clean rooms. FDA-compliant upon request.
We offer zinc-plated carbon steel, SS304, SS316, and nylon PA66. For chemical or food-contact environments, we recommend SS316 or FDA-grade nylon. RoHS & REACH compliance is standard on all materials.
Absolutely. Our OEM/ODM service includes custom colours (RAL match), embossed or printed logos, and bespoke packaging. 48h prototype turnaround — minimum order quantity for custom colour is 5,000 pcs.
Standard bulk orders ship 18–22 days after order confirmation (air freight) or 30 days (sea). For express production, we can shorten to 12–15 days. Sample orders are dispatched within 48h.
Refer to our size chart (download above) or send us your screw sample. We provide free fitment verification within 24h. Most common sizes: #1 (3.5mm), #2 (4.5mm), #3 (5.5mm) drive.
Yes — free samples for qualified buyers. We cover standard shipping for up to 20 pcs. Request via the form below or WhatsApp. No hidden charges.
All products are ISO 9001:2015 manufactured. Options for CE, UL, FDA, NSF, IATF 16949 available per project. Full COA with batch traceability included.
We ship DAP, DDP, or FOB (your choice). Our logistics team manages customs documentation. 30+ countries served — typical transit time 5–12 days air, 20–35 days sea.
Verified feedback from procurement and engineering teams using Phillips head screw caps & covers

Thomas Mueller
⚙️ Maintenance Manager, Bavaria Industrial GmbH
“We tested 4 suppliers. Boen’s SS316 Phillips head screw caps survived 300h salt spray while competitors failed at 48h. Cost per unit was 22% lower than our previous supplier.”

Sarah Okonkwo
📦 Supply Chain Lead, West Africa Construction Ltd.
“Reliable delivery to Lagos in 14 days. The nylon screw covers withstand our tropical humidity perfectly. Zero corrosion after 9 months in outdoor structures.”

David Reynolds
🔩 Senior Buyer, UK Automotive Parts Ltd.
“The OEM team matched our custom green colour perfectly. Caps snap on securely and reduced assembly time by 30%. Our engineers are impressed.”

✍️ About the Author
Liam Croft — Senior Fastener Engineer & Industry Analyst
With 14 years in industrial fastening systems, Liam has overseen over 200 custom fastener projects for automotive, agricultural, and construction OEMs across Europe and Asia. He is a certified ISO 9001 lead auditor and regularly contributes to fastener standardisation committees. He currently leads technical content at Boen Fastener.
Get factory-direct pricing on premium Phillips head screw caps & screw covers. Free samples, 48h quote, and dedicated engineering support.

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🏢 Handan Boen Fastener Manufacturing Co., Ltd. · Hanguang Industrial Park, Yongnian District, Handan, Hebei, China · 📍 Daily 09:00–17:00
🏆 Trusted by Global Industry Leaders
ISO 9001:2015
CE Marking
UL Recognized
FCC Compliant
RoHS + REACH
“We switched to Boen’s Phillips head screw covers for our tractor assembly line. Corrosion-related warranty claims dropped 41% in 8 months. Their batch traceability saved us an audit last quarter.”
Anders Lindqvist
Supply Chain Director, Nordic AgriTech AB
“The OEM/ODM support is outstanding. We got custom-coloured caps with our logo in 10 days. Lead times are consistently under 3 weeks.”
Maria Chen
Procurement Manager, SolarMount Systems GmbH
🔧 Automated CNC line — 50,000+ pcs/day capacity