Locking format
Confirm the locking format on the model drawing and sample.
MC-BS03 / BOLT SEAL, ONE-PIECE MOULDED (PIN AND BODY LINKED)
Single-use container bolt seal made by injection-moulded assembly: an 87 mm, 8 mm galvanized steel pin linked to a hexagonal ABS body with a flat marking face. MOQ 500 pieces, 250 per carton.
Price and delivery timing are confirmed against your quantity, colors and print requirements.
PRODUCT OVERVIEW
MC-BS03 is a single-use bolt seal in which the pin and the locking body are moulded side by side and joined by a breakaway link, so the two parts arrive together and the serial numbers match. The pin is galvanized low-carbon steel wrapped in ABS, 87 mm (3.43 in) long with an 8 mm (0.31 in) locking tip; the body is hexagonal, 34 mm high and 24 mm wide, with a flat face for the logo and serial number. Overall width before use is 54 mm. Snap the pin off the link, push it through the hasp and into the body. Remove with bolt cutters. MOQ is 500 pieces, 10 per box and 250 per carton.
The grooved steel tip engages a locking ring inside the body; once seated it cannot be pulled out without cutting the pin.
Quantity, color, marking (logo, serial format, start number), destination port and any documents your buyer requires.
Confirm the locking format on the model drawing and sample.
Galvanized low-carbon steel pin; ABS coating on pin and body
Specify artwork and identifier requirements so the print method and available marking area can be confirmed.
TECHNICAL DATA
| Model | MC-BS03 |
|---|---|
| Seal type | Bolt seal, one-piece moulded (pin and body linked) |
| Material | Galvanized low-carbon steel pin; ABS coating on pin and body |
| Total length | 87 mm (3.43 in) |
| MOQ | 500 pieces (catalogue). |
| Lead time | Confirmed after quantity, color, artwork and destination are reviewed. |
| Pin diameter | 8 mm (locking tip); 11 mm ABS-coated shank (drawing) |
| Pin length | 87 mm overall (drawing) |
| Locking body | Hexagonal, 34 mm high, 24 mm wide; overall width 54 mm before use (drawing) |
| Removal | Bolt cutters; eye protection required |
| Catalogue pages | 58 |
Source: MANCHAO Security Seal Catalogue 2024, PDF pages 58. 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: containers, trucks, oil tanks and doors. The linked design reduces mix-ups at busy loading docks: the pin and body share one serial number and stay together until installation. Images are product photos and the original catalogue drawing.

Insert the steel pin through the aligned holes of the closed hasp and fixed tab, then push it fully into the locking body. Check engagement and record the identifier. Confirm clearance and required model-specific transport documents.
AI-generated application illustration; confirm closure fit with a sample.MARKING & COLORS
Catalogue marking: company logo and/or name and serial number on the ABS-coated pin and body. The drawing shows a flat 15 mm-wide marking face on the body. MANCHAO offers laser marking, screen printing, UV printing and hot stamping on plastic surfaces; the process for this ABS surface is confirmed on a production sample against your artwork, serial format and required contrast. Catalogue colors: white, yellow, blue, green, orange, or a custom color on request.
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.

White, yellow, blue, green, orange; custom colors on request
INSTALLATION & INSPECTION
1. Break the pin away from the moulded link. 2. Push the pin through the aligned hasp holes. 3. Press it fully into the locking body until it clicks; pull to confirm. 4. Record the serial number. 5. Remove with bolt cutters, wearing eye protection. Single-use.
PACKING & ORDERING
10 pieces per box, 250 pieces per carton; carton 51 × 32 × 12.5 cm; gross weight 20.5 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 pin and body are moulded together, so they arrive as a matched pair with one serial number. This avoids loose parts and mismatched numbers at the loading dock.
The drawing shows an 87 mm pin with an 8 mm tip and 11 mm shank, a body 34 mm high and 24 mm wide, and an overall width of 54 mm before use.
With bolt cutters. Wear eye protection, because the steel pin can break sharply. The seal is single-use.
Ask before ordering. We provide documents only when they identify this exact model; catalogue text and photos alone do not establish a certification.
MOQ 500 pieces. Packing is 10 per box and 250 per carton (51 × 32 × 12.5 cm, 20.5 kg gross).
MC-BS03 / START YOUR ENQUIRY
Tell us your quantity, colors and marking requirements.