From The Anvil Heavy Duty Latch - Silver

This heavy-duty tubular mortice latch features an extra-strong spring, making it suitable for use ...

Best current price£12.48from B&Q

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B&QB&Q - Polished Nickel 3" Heavy Duty Latch
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£12.48
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eBayFrom The Anvil 51744 Polished Nickel 3"" Heavy Duty Latch
£3.00 delivery
£13.30
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Wayfair UKPolished Nickel 3" Heavy Duty Latch
£4.99 delivery
£14.99
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Cast In StylePolished Nickel Heavy Duty Latch
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£26.40
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Product Information

Full details

The From The Anvil Heavy Duty Tubular Mortice Latch is a robust, professional-grade hardware solution designed for homeowners and contractors who require reliable door operation with heavy door furniture. Its defining benefit is an extra-strong spring mechanism that provides consistent return action for both heavy knob sets and unsprung lever handles, though users should ensure their door thickness accommodates the specific latch length chosen.

All features

ColourSilver
Model Part Number51757
BrandFrom The Anvil

Extended Product Information

FAQs

Is this latch suitable for front doors?

This is a tubular mortice latch designed for internal doors. It does not provide locking functionality on its own.

Can I use this with any door handle?

It is designed for use with knob sets or unsprung lever handles. Sprung handles may feel too stiff when paired with this heavy-duty spring.

What does FD-30 mean in the product description?

FD-30 refers to the fire door rating, meaning the product is certified to provide 30 minutes of fire resistance when installed correctly.

What tools do I need for installation?

You will need a drill, a selection of wood drill bits, a sharp wood chisel, a hammer, and a screwdriver.

Does the latch come with a strike plate?

Yes, it is supplied as a complete kit including the latch mechanism, strike plate, and matching wood screws.

How do I know which size to choose?

Choose based on the backset of your door furniture and the distance from the edge of the door to the center of the handle spindle.

Troubleshooting

The handle does not return to the horizontal position

Verify that the latch is centered correctly in the mortice and that the spindle is not binding against the door furniture.

The door is hard to latch or requires force to shut

Check the alignment of the strike plate on the door frame; adjust the strike plate position if the latch bolt is hitting the frame edge.

The latch bolt makes a grinding noise

Clean away any wood shavings or debris inside the mortice cavity and apply a light silicone lubricant to the bolt mechanism.

Pros and Cons

Pros

  • Extra-strong spring mechanism prevents sagging handles
  • Suitable for high-traffic and fire-rated doors
  • Industry-certified to BS EN12209:2003 standards
  • Includes all necessary matching wood screws for installation
  • Compatible with a wide range of knob and lever sets

Cons

  • Requires precise mortice cutting for a flush fit
  • May require more force to operate than standard light-duty latches
  • Not suitable for doors thinner than the minimum latch mechanism depth

Setup, Compatibility & Care

Installation requires a standard mortice chisel set to create a cavity in the door edge. Ensure you measure your door thickness and check the backset measurement of your specific knob set before installation to select the correct size (3, 4, or 5 inches). The latch comes with matching silver-tone wood screws, which should be piloted to prevent splitting the timber. For maintenance, keep the moving parts free of debris and lightly lubricate the latch bolt periodically with a high-quality silicone-based lubricant to maintain smooth operation. Do not use heavy oils that can attract dust and grime.

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