Acme Seal Lead Seal

The Round Lead Seals is designed with two parallel holes and a knot chamber. During fitting the wire or string is threaded through the two parallel holes of the lead sealsand crossed inside the knot chamber before closing with the sealing tool to prevent slippage.

The LS31F Seal Cross-hole Lead Seals is designed so that the lashed wire is crimped together when the seal is compressed with the sealing tool. The effect of crimping the lashed wire together alleviates any chance of twisting the wire out of the hole without leaving clear evidence of tampering.

To optimize security the sealing tool dies can be engraved to emboss or deboss characters /numbers/logo onto the lead seals, giving reference to the application user.

Recommended Applications

Gas, Water & Electric meters, Drums, Valves,

Refineries, Post Bags, Cages, Lockers



99.9% Pure Lead



Plain or Company name/logo embossed or debossed using sealing tool with engraved dies.


Sealing Tool

LS29F & LS41F - YPL 9062 supplied with plain 10mm dies as standard

LS4F - YPL 9083 supplied with plain 12mm dies as standard


Ref Sizes in mm LS 4F LS 29F LS 41F
A Diameter 12.5 9.0 10.0
B Thickness 5.5 4.5 4.0
C Hole diameter 3.2 2.4 2.5
D Hole width 3.2 2.3 2.2
E Chamber width 9.0 6.3 7.0


Ref Sizes in mm LS 31F
A Diameter 11
B Thickness 5.8
C Hole size 1.8


Acme Lead Seals datasheet (176kb)

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Do you know that you can customise our products by imprinting your company logo on to our seals?