Locking format
Confirm the locking format on the model drawing and sample.
MC-175A / FIXED-LENGTH INSERT-LOCK TAG SEAL
Fixed-length insert-lock tag seal in 100% virgin polypropylene with a 38 × 20 mm print flag, 1.8 g. Catalogue length 175 mm (drawing 170 mm); average tensile 3–5 kg; nine stock colors. MOQ 1,000 pieces.
Price and delivery timing are confirmed against your quantity, colors and print requirements.
PRODUCT OVERVIEW
MC-175A is a single-use, fixed-length tag seal with a large print flag. The catalogue lists 175 mm (6.9 in) overall and a 38 × 20 mm flag; the original drawing shows 170 mm, a 38 × 21 mm flag, a 2 mm strap and a 3.5 mm tip. It weighs 1.8 g and is made of 100% virgin polypropylene. Push the strap tip into the socket on the flag to lock it at one loop size. Stock colors are red, white, yellow, pink, orange, light blue, black, green and grey. Catalogue average tensile is 3–5 kg. MOQ is 1,000 pieces, packed 200 per bag and 5,000 per carton.
The tip is inserted into the flag socket and held by internal barbs; it cannot be reopened without breaking the seal.
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-175A |
|---|---|
| Seal type | Fixed-length insert-lock tag seal |
| Material | 100% virgin polypropylene (PP), all-plastic |
| Total length | 175 mm (6.89 in) |
| Catalogue tensile value | 3-5kg |
| MOQ | 1,000 pieces (catalogue). |
| Lead time | Confirmed after quantity, color, artwork and destination are reviewed. |
| Flag size | 38 × 20 mm (catalogue); 38 × 21 mm (drawing) |
| Strap | 2 mm; 3.5 mm tip (drawing) |
| Weight | 1.8 g per piece |
| Tensile strength | Average 3–5 kg (catalogue) |
| Removal | Scissors or cutter |
| Catalogue pages | 41 |
Catalogue source: MANCHAO 2024, PDF pages 41. Reported value: 3-5kg. 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 41. 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: postal, clothing, shoes and bags. The 38 mm flag leaves room for a logo plus a serial number or small barcode, which suits brand tags on garments and footwear and numbered mail sacks. 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 serial number on the 38 × 20 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: red, white, yellow, pink, orange, light blue, black, green, grey or custom.
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.

Red, white, yellow, pink, orange, light blue, black, green, grey; custom colors on request
INSTALLATION & INSPECTION
1. Pass the strap through the closure. 2. Push the strap tip into the locking hole until it clicks; the loop length is fixed. 3. Check that it cannot be pulled out and record the number. 4. Remove with scissors or a cutter. Single-use.
PACKING & ORDERING
200 pieces per bag, 5,000 pieces per carton; carton 57 × 40 × 34 cm; net 9.5 kg, gross 10.5 kg (catalogue).
Send your quantity, destination, chosen colors and print requirements. Confirm samples, current packing and delivery terms before placing an order.
PRODUCT DOCUMENTS
BUYING QUESTIONS
The catalogue lists 175 mm and the original drawing shows 170 mm. Confirm the loop you need on a sample.
38 × 20 mm according to the catalogue (38 × 21 mm on the drawing).
Red, white, yellow, pink, orange, light blue, black, green and grey.
MOQ 1,000 pieces, packed 200 per bag and 5,000 per carton (57 × 40 × 34 cm, 10.5 kg gross).
MC-175A / START YOUR ENQUIRY
Tell us your quantity, colors and marking requirements.