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Mounting a heavy mirror or glass splashback usually means exposed screw heads that ruin the clean look. That's where these polished stainless steel mirror screws come in. The set includes a carbon steel screw, a plastic washer, and a decorative stainless steel cap – all sized from 12mm up to 40mm in cap diameter. The cap snaps over the screw head after installation, leaving a sleek, polished finish that looks like a custom trim piece. No more rusty rings or mismatched hardware. Perfect for large wall mirrors, glass shower panels, retail displays, or any project where you want the fastener to disappear.
Complete 3‑piece set – Stainless steel decorative cap + plastic washer + carbon steel screw. Everything you need for a professional mirror installation.
Polished stainless steel cap – The visible part is bright, corrosion‑resistant, and easy to clean. Won't rust or tarnish like plated brass.
Plastic washer included – Protects the glass or mirror from direct metal contact. Prevents stress cracks and distributes pressure evenly.
Wide cap diameter range (12mm – 40mm) – Choose the right size to match your mirror thickness and desired visual weight. Larger caps for heavy mirrors, smaller for discreet hold.
Carbon steel screw body – Strong enough for solid wall anchoring. The hidden part doesn't show, so you get strength where it matters.
Easy cap installation – Screw the base into the wall (with appropriate anchor), then snap or twist on the polished cap. No glue, no special tools.
| Type | Mirror Screw (decorative cap + washer + screw) |
|---|---|
| Cap Material | Polished Stainless Steel (visible part) |
| Washer Material | Plastic (to protect glass/mirror surface) |
| Screw Material | Carbon Steel (hidden, high strength) |
| Cap Diameter Options | 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 30mm, 35mm, 40mm (select above) |
| System of Measurement | Metric |
| Installation Method | Screw base into wall, then press/snap on cap over screw head |
Note: All dimensions manually measured – minor variations possible. Colors may vary slightly due to lighting and screen settings.
First, drill a hole in the wall using a masonry or drywall bit (match the screw diameter). Insert a wall anchor if needed. Then screw the carbon steel base into the anchor until the plastic washer presses against the mirror or glass. Finally, snap or thread the polished stainless steel cap onto the exposed screw head – it should sit flush against the washer. No visible hardware left.
Larger caps (30mm–40mm) are meant for heavy commercial mirrors or as a design statement. For typical home bathroom mirrors (up to 40 lbs), 20mm–25mm caps work perfectly. The cap diameter is purely decorative – the actual screw size is standard. Pick a cap that looks balanced with the mirror thickness and your decor.
The stainless steel cap is fully rust‑resistant – fine for high humidity. The carbon steel screw is hidden behind the cap and washer, so moisture rarely reaches it. However, if installing inside a steam shower or direct water spray, we recommend adding a tiny dab of silicone sealant over the screw head before capping for absolute protection.
Yes – the plastic washer is designed to prevent glass‑to‑metal contact, which reduces the risk of cracking. For acrylic (plastic) mirrors, even safer. Do not over‑tighten the screw; snug is enough. The washer should just kiss the surface.
Wipe with a soft damp cloth and mild glass cleaner or soap. Avoid abrasive pads or acidic cleaners (vinegar, bleach) – they can dull the polished finish over time. If you notice fingerprints, a microfiber cloth restores the shine.
