Locking format
Confirm the locking format on the model drawing and sample.
MC-335F / PULL-TIGHT PLASTIC SEAL, FLAT TOOTHED STRAP
All-polypropylene pull-tight seal with a flat toothed strap: 335 mm overall, 40 × 25 mm flag, 265 mm toothed section. Catalogue average tensile 10–15 kg; MOQ 10,000 pieces.
Price and delivery timing are confirmed against your quantity, colors and print requirements.
PRODUCT OVERVIEW
MC-335F is a single-use, all-plastic pull-tight seal with a flat, toothed strap. It is 335 mm (13.2 in) long: a 40 × 25 mm flag, a 35 mm neck and a 265 mm toothed strap. The strap is 1.2 mm thick and the lock head 14.5 mm high. Feed the strap through the head and pull tight. It is 100% virgin polypropylene with no metal. Catalogue average tensile is 10–15 kg. MOQ is 10,000 pieces.
The flat teeth pass one way through the plastic lock and cannot be pulled back.
Quantity, color, marking (logo, serial, barcode) and destination.
Confirm the locking format on the model drawing and sample.
100% virgin polypropylene (PP), all-plastic
Specify artwork and identifier requirements so the print method and available marking area can be confirmed.
TECHNICAL DATA
| Model | MC-335F |
|---|---|
| Seal type | Pull-tight plastic seal, flat toothed strap |
| Material | 100% virgin polypropylene (PP), all-plastic |
| Total length | 335 mm (13.19 in) |
| Catalogue tensile value | 10-15kg |
| MOQ | 10,000 pieces (catalogue). |
| Lead time | Confirmed after quantity, color, artwork and destination are reviewed. |
| Flag size | 40 × 25 mm (drawing) |
| Strap | 265 mm toothed section, 1.2 mm thick (drawing) |
| Tensile strength | Average 10–15 kg (catalogue) |
| Removal | Scissors or cutter |
| Catalogue pages | 21 |
Catalogue source: MANCHAO 2024, PDF pages 21. Reported value: 10-15kg. Test method and minimum guaranteed force are not established by this entry; confirm model-specific test evidence before specifying a required rating.
Source: MANCHAO Security Seal Catalogue 2024, PDF pages 21. Company printing services confirmed October 2026. Model-specific claims require supporting evidence.
DIMENSION REFERENCE

Check the original dimension drawing and your closure openings before ordering.
APPLICATION CHECK
Catalogue-listed uses: standard containers, vans, doors, postal and courier services and bags. The long flat strap suits roll cages, courier sacks, totes with wide handles and van doors. Images are a catalogue product photo and the original drawing.

Thread through the zipper pull and adjacent anchor eyelet, then lock and record the identifier. Check both openings, loop clearance and seal engagement on a sample.
AI-generated application illustration; confirm closure fit with a sample.MARKING & COLORS
Catalogue marking: company logo and/or name, serial number and barcode on the 40 × 25 mm flag. MANCHAO offers laser marking, screen printing, UV printing and hot stamping on plastic surfaces; the process is confirmed on a production sample against your artwork, serial format and barcode size. Catalogue colors: yellow, white, green, blue, orange, red (optional).
Fine logo, text and serial identification; contrast depends on the seal color and material.
Solid-color logos and text; artwork and color matching are approved before production.
Color artwork and identification; layout and surface adhesion are checked on a sample.
Foil-transfer text and logos; confirm foil color, marking area and artwork.

Yellow, white, green, blue, orange, red (optional)
INSTALLATION & INSPECTION
1. Pass the tail through the closure (bag neck, zipper pulls, hasp or handles). 2. Feed the tail through the locking head in the arrow direction. 3. Pull until tight; check that it cannot be pulled back. 4. Record the serial number. 5. Remove with scissors or a cutter. Single-use; do not reapply.
PACKING & ORDERING
Not stated in the catalogue; bag and carton quantities are confirmed with the quotation.
Send your quantity, destination, chosen colors and print requirements. Confirm samples, current packing and delivery terms before placing an order.
PRODUCT DOCUMENTS
BUYING QUESTIONS
335 mm overall with a 40 × 25 mm flag and a 265 mm flat toothed strap.
Yes, 100% virgin polypropylene with no metal.
The catalogue lists an average of 10–15 kg.
10,000 pieces. Packing is confirmed with the quotation.
MC-335F / START YOUR ENQUIRY
Tell us your quantity, colors and marking requirements.