Custom Toilet Seat Bolts, Door Handle Screws & Water Tank Fasteners

Premium Custom Fasteners for Bathroom & Door Hardware – Engineered for Growing EU/US Demand

The demand for durable, safety-compliant fasteners in bathroom fixtures and door hardware is surging across Europe and North America. Homeowners and contractors increasingly seek corrosion-resistant toilet seat boltsaesthetic yet tamper-proof door handle screws, and leak-proof water tank fasteners that align with strict regional standards. At HD-Screws, we deliver tailored solutions for these critical components, combining precision engineering, global certifications, and rapid customization to meet commercial and residential needs.

Why Partner with HD-Screws?

  • 15+ Years of Expertise: Trusted by 50+ toilet seat brands and door hardware suppliers in the EU/US.
  • Global Compliance: CE, RoHS, REACH, and ISO 9001-certified production.
  • Customization-First: Submit specs or CAD files – we adapt materials, sizes, and finishes to your project.
  • Fast Scalability: Prototypes in 5 days, bulk orders shipped in 2-3 weeks with rigorous QA checks.
Universal Toilet Seat Bolt

1. Custom Toilet Seat Bolts – Stability & Compliance Guaranteed

Ideal for: Residential bathrooms, commercial restrooms, RV/caravan toilets.
Key Features:

  • Materials: 304/316 stainless steel (saltwater-resistant), lead-free brass.
  • Sizes: M6–M12 (metric) / 1/4″–1/2″ (imperial) with adjustable lengths (20–100mm).
  • Specialized Options: Anti-vibration threads, tamper-proof Torx heads, brushed/chrome finishes.
  • Compliance: Meets EN 817, ASTM F880M, and UK Water Regulations.

Solve These Pain Points:

  • Loose or rusted bolts causing toilet seat wobbling.
  • Non-compliant finishes failing EU chemical safety tests.

2. Bamboo-Shaped Breakaway Screw Bolts for Door Handles – Secure & Stylish

Ideal for: Modern homes, hotels, offices, and public buildings.
Key Features:

  • Materials: High-strength carbon steel (zinc-plated) or stainless steel.
  • Sizes: M4–M8 (metric) / #8–#12 (US), customizable head shapes (flat, domed, decorative).
  • Safety Design: Precisely calibrated breakaway torque to deter tampering.
  • Compliance: ANSI B18.6.3, DIN 7985, and REACH standards.

Solve These Pain Points:

  • Screws snapping under pressure or compromising door handle aesthetics.
  • Non-recyclable materials failing EU sustainability requirements.

3. Water Tank Screw Bolts – Leak-Proof & Chemical-Resistant

Ideal for: Toilet cisterns, HVAC systems, industrial water tanks.
Key Features:

  • Materials: Marine-grade 316 stainless steel, UV-stable nylon.
  • Sizes: M5–M10 (metric) / 3/16″–3/8″ (imperial) with O-ring grooves.
  • Specialized Options: Chemical-resistant coatings, pre-assembled washers.
  • Compliance: EN 1111, NSF/ANSI 61 (safe for potable water).

Solve These Pain Points:

  • Bolt corrosion causing water tank leaks.
  • Non-standard sizes delaying repair projects.

HD-Screws: Your Reliable Fastener Partner for EU/US Markets

With a 10,000+ sqm factory and 30+ CNC machining lines, we guarantee:
✅ High-Volume Capacity: Monthly output of 5M+ units.
✅ Quality Control: 100% salt spray testing (1,000+ hours), torque validation.
✅ Customization Flexibility: Modify thread patterns, coatings, packaging, and labeling.
✅ Localized Support: Metric/imperial sizing, documentation in English/German/French.

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