# Metal RFID Keyfob — Stainless & Zinc Premium Fob

URL: https://proudtek.com/products/rfid-keyfobs/rfid-metal-keyfob/
Source URL: https://proudtek.com/products/rfid-keyfobs/rfid-metal-keyfob/
Generated: 2026-03-16T01:42:30.697Z
Kind: product
Publisher: Proud Tek Co., Limited
Author: Proud Tek Co., Limited
Credentials: ISO 9001:2015, ISO 14001:2015, RoHS Compliant, CE Marking, REACH Compliant
Image: https://proudtek.com/landing-images/rfid-metal-keyfob.jpg
Image Alt: Brushed stainless steel RFID keyfob with laser-engraved logo for premium access control

## Description
At BOM level, metal RFID keyfobs use 316L stainless steel, die-cast zinc alloy (ZA-4 / ZA-8) or anodised aluminium (6061 / 7075) as the structural...

## Procurement Snapshot
- Best fit: Best for access control, parking, elevator, and membership credential projects.
- Key options: Form Factor: Compact keyfob form factor for handheld access credentials.
- Customization: Confirm artwork, encoding, material, chip, and finish requirements before quoting.
- Quote checklist: Reference Metal RFID Keyfob — Stainless & Zinc Premium Fob in your inquiry so the matching product page stays attached to the quote. Compact keyfob form factor for handheld access credentials. Share target chip or protocol, quantity,...

## Key Specs
- Form Factor: Compact keyfob form factor for handheld access credentials.

## FAQ
- Q: Is the metal keyfob safe for prolonged skin contact?
  A: Yes — all three alloys (316L stainless, die-cast zinc alloy ZA-4 / ZA-8 with Ni-Cr plating, anodised aluminium 6061 / 7075) pass EN 1811 nickel release at ≤ 0.5 µg/cm²/week and clear REACH Annex XVII entries 27 (nickel) and 63 (lead). 316L stainless and anodised aluminium are the strongest-posture options for nickel-sensitive users; the electroplated zinc variant uses a Ni-Cr top coat specifically sized to stay under the threshold.
- Q: Which alloy is suitable for food-plant and commercial-kitchen environments?
  A: 316L austenitic stainless steel per ASTM A276, passivated per ASTM A967, is the only food-contact-incidental option under LGA and FDA 21 CFR 175; it tolerates hot-caustic (1-2 % NaOH, 60-80 °C), peracetic-acid (80-150 ppm) and chlorinated-alkaline wash-down indefinitely. Plated zinc alloy is not food-grade because the plating chemistry is not cleared; anodised aluminium is acceptable only when NSF 51 food-grade anodising is specified. Pick 316L stainless for commercial kitchens, food plants, pharma-ancillary areas and labs.
- Q: Does the metal shell compromise read range on the reader?
  A: No, provided the 0.3-0.5 mm ferrite sheet is specified between the inlay and the metal lower shell and the antenna is tuned for the anti-metal environment. HF 13.56 MHz tap range is 0-30 mm (vs 0-50 mm in a non-metal shell) and LF 125 kHz tap range is 0-40 mm — in both cases well inside the handshake envelope of every PACS reader we have validated against. The read range is the only spec that changes versus an ABS / epoxy fob; chip, PACS integration, Wiegand / OSDP behaviour are identical.

## Machine Routes
- JSON: https://proudtek.com/machine/products/rfid-keyfobs/rfid-metal-keyfob.json
- Text: https://proudtek.com/machine/products/rfid-keyfobs/rfid-metal-keyfob.txt