Traditional Hand-Forged Door Bolts – Cast Iron & Armor Coat Options for Outdoor Use

Image of an ancient hand forged door bolt on and old wooden door
Image of an ancient hand forged door bolt on and old wooden door

Published: 13 October 2025 | Last Reviewed: 1 October 2026

This post is part of our regularly reviewed content series, ensuring all advice remains accurate and relevant to your home project.

Author: Carl Benson

Carl is the founder of Suffolk Latch Company, with a background in engineering and over 20 years’ experience in home hardware. He works closely with suppliers and designers to develop quality ironmongery that stands the test of time. Read Carl’s full bio.

Carl Benson, founder of Suffolk Latch Company

Introduction

Traditional door bolts provide a simple way to hold a door, cupboard or shutter closed while adding character to period and country-style interiors. However, not every bolt or finish is suitable for every location.

Hand-forged mild-steel bolts in black beeswax or pewter are primarily intended for interior use. Exterior doors, gates and exposed joinery require a product specifically described as suitable for outdoor use, such as a coated Tudor bolt or an Armor-Coat door bolt.

This guide explains the main designs, sizes, finishes and fitting options so you can choose a suitable product for your project. You can also browse our complete collection of traditional door bolts.

What Is a Traditional Door Bolt?

A traditional door bolt is a surface-mounted fitting with a sliding bar that engages with a receiver fitted to the adjoining frame or surface. It can be used to keep an internal door closed, provide privacy in a bedroom or bathroom, secure a cupboard or hold part of a stable door in position.

Our hand-forged designs are individually made from mild steel. The forging process leaves subtle hammer marks and variations, giving each fitting its own character. These products coordinate particularly well with traditional Suffolk latches, hinges and pull handles.

Cast-iron Tudor bolts and steel Armor-Coat bolts are separate product ranges. Although they share traditional styling, their construction and finishes differ from those of the black beeswax and pewter hand-forged products.

Traditional Door Bolt Designs

Fishtail Door Bolts

Fishtail bolts have a broad, flattened handle that is easy to grip and provides a distinctive traditional detail. They are available in black beeswax and pewter finishes for suitable interior doors, cupboards and shutters.

Explore our pewter fishtail door bolts or browse the complete traditional door bolt collection for other finishes.

Shepherd’s Crook Door Bolts

The Shepherd’s Crook design has a curved handle inspired by the familiar shape of a shepherd’s staff. It provides an easy grip while coordinating with other traditional ironmongery in the same style.

Our black Shepherd’s Crook door bolts are individually hand-forged from mild steel and are intended for interior use.

Tudor Cast-Iron Door Bolts

Tudor door bolts are made from cast iron and have a black UV- and rust-resistant coating. They are suitable for interior and exterior use, including garden gates and barn doors, but are not recommended for coastal locations.

The protective coating should be checked periodically. If it becomes worn or damaged, the exposed cast iron may begin to rust, particularly around moving parts and fixing points.

Armor-Coat Door Bolts

Door bolts with Armor-Coat are steel bolts with a specialist UV- and rust-resistant finish. They are suitable for both interior and exterior use and are available in straight and cranked versions.

The Armor-Coat finish has been independently tested to BS EN 1670:2007 Grade 5 and is listed as compatible with Accoya timber. This makes the range a practical option for exposed exterior joinery and projects using timber that requires compatible hardware.

French Door Bolts

French door bolts have an extended cranked handle that makes them easier to operate when positioned near the top or bottom of a tall door. They are supplied with a selection of keeps for different door configurations and can be fitted vertically or horizontally.

Because the available finishes have different care requirements, always check the current product information before selecting a French door bolt for a particular environment.

Straight or Cranked Door Bolts?

The correct shape depends on the relationship between the face of the door and the surface receiving the bolt.

  • Straight bolts are intended for surfaces that are flush. They are normally supplied with a receiver bridge through which the bolt slides.
  • Cranked bolts, sometimes called necked or offset bolts, are designed for surfaces at different levels. They are normally supplied with a mortice receiver plate.

Close the door and compare the door face with the frame before ordering. If the two surfaces are not level, measure the offset and consult the product dimensions to ensure the selected bolt and receiver will align correctly.

Choosing the Correct Size

Door bolt sizes vary between product ranges. Common hand-forged and Armor-Coat sizes include 4-inch and 6-inch options, while Tudor and French door bolts are offered in their own size ranges.

  • Smaller bolts are commonly used on cupboards, shutters and lighter internal doors.
  • Larger bolts are better suited to larger internal doors, stable doors and heavier joinery.
  • Long-reach bolts help when a fitting needs to be operated from a more accessible height on a tall or double door.

Measure the available space on the door and frame, allowing room for the bolt to slide fully in both directions. Check that the handle and receiver will not clash with architrave, door stops or other fittings, and choose a position that the intended users can reach comfortably.

Size alone does not establish security or load capacity. Check the individual product description, dimensions, intended environment and fixing surface before ordering.

Can Traditional Door Bolts Be Used Outside?

Only use a door bolt outside when its product description specifically confirms that it is suitable for exterior use.

Traditional black beeswax and pewter hand-forged bolts are intended for interior use. Beeswax provides limited protection during storage and in dry indoor conditions, but it is not a weatherproof exterior coating. Pewter-finished hand-forged bolts are also listed for internal use.

For an exterior door, gate or outbuilding, consider one of the following:

  • Tudor cast-iron bolts: suitable for interior and exterior use, excluding coastal locations.
  • Armor-Coat bolts: suitable for interior and exterior use, with a high-performance corrosion-resistant coating.

External hardware should still be inspected regularly. Scratches, worn coating and movement around screw holes can expose the underlying metal and allow corrosion to develop.

How to Fit a Traditional Door Bolt

A door bolt must be positioned so that its sliding bar enters the receiver cleanly without rubbing or being forced out of alignment.

  1. Close the door and decide where the bolt can be reached comfortably.
  2. Confirm whether the two fitting surfaces are flush or offset.
  3. Hold the bolt in position and check that there is sufficient timber for every fixing screw.
  4. Extend the bolt and align the receiver with the end of the sliding bar.
  5. Mark the fixing holes for both parts with a pencil or bradawl.
  6. Drill suitable pilot holes, taking care not to drill through the door.
  7. Fit the bolt body loosely and test its movement before fully tightening the screws.
  8. Fit the receiver and check that the bolt opens and closes freely while the door is in its normal position.

Traditional slotted screws can be damaged if they are overtightened. Use a correctly sized hand screwdriver and stop when the fitting is secure. If you are unsure about the fixing surface or the position of hidden glazing and services, ask a competent joiner to install the bolt.

Door Bolt Finishes

Black Beeswax

Black beeswax creates a rich, traditional appearance that highlights the irregularities of hand-forged steel. It is intended for dry interior locations and requires occasional care to maintain the protective surface.

Rustic Pewter

Rustic pewter provides a lighter, softly aged appearance while retaining the texture of forged steel. Pewter products are lightly oiled rather than coated in beeswax and are intended for interior use unless the individual product description states otherwise.

Black Powder Coating

The Tudor cast-iron range has a hard-wearing, UV- and rust-resistant black powder coating. The coating improves exterior suitability, but damaged or worn areas should be treated promptly to limit corrosion.

Armor-Coat

Armor-Coat is a specialist external-grade finish designed to provide a high level of corrosion protection. It is a good choice for exposed doors and gates where a traditional black appearance is required with greater weather resistance.

Care and Maintenance

Maintenance depends on the material and finish:

  • Black beeswax: remove excess wax with a soft cloth and, if necessary, a small amount of mild solvent. Apply a light coat of beeswax occasionally and buff the surface with a soft cloth.
  • Rustic pewter: wipe with a soft cloth before fitting. Apply a small amount of light oil to moving contact points if the action becomes stiff.
  • Tudor cast iron: inspect the coating and apply light oil to moving parts and screw holes. Treat any damaged areas before corrosion spreads.
  • Armor-Coat: clean gently and inspect for chips or scratches. If the coating is damaged, follow the current product-care advice for treating the exposed area.

WD-40 or another mild solvent may be used sparingly to remove excess beeswax where the care instructions recommend it. It should not be treated as a replacement for the long-term beeswax coating.

If a Bolt Becomes Stiff or Loose

With the door open and the bolt clear of its receiver, check whether the bar slides freely. If it only sticks when entering the receiver, check the alignment before adding lubricant. Keep the moving contact points clean and use a small amount of suitable light oil only where the product-care instructions recommend it.

If the bolt will not stay in its intended position, ask us for advice on that particular model. Avoid forcing the bar or bending the bolt body or spring without product-specific instructions.

For more detailed advice, read our guide to caring for hand-forged door furniture.

Privacy, Safety and Security

A surface-mounted door bolt can provide privacy or help keep a door closed, but it should not automatically be treated as a certified security lock.

When fitting a bolt to a bedroom or bathroom, consider whether children or vulnerable occupants could accidentally lock themselves inside. Positioning the bolt higher on the door may reduce this risk, although a bathroom privacy lock with an external emergency release may be a better option in some homes.

For entrance doors and other locations requiring security, select an appropriate tested locking system and check any insurance, fire-safety and door-manufacturer requirements. Do not fit a padlock or bolt arrangement to an escape door if it could prevent occupants from opening the door quickly in an emergency.

Choosing the Right Traditional Door Bolt

The best door bolt depends on the door construction, the relationship between the fitting surfaces and the surrounding environment.

For a dry interior, a hand-forged fishtail or Shepherd’s Crook bolt in black beeswax or pewter provides authentic traditional detail. For an exterior gate or outbuilding away from coastal conditions, a coated Tudor cast-iron bolt may be suitable. For more exposed joinery or Accoya timber, an Armor-Coat bolt provides a higher level of corrosion protection.

Check the individual dimensions and product information before ordering, particularly when choosing between straight and cranked versions. Browse our traditional door bolt collection to compare the available designs, sizes and finishes.


Frequently Asked Questions

Are black beeswax door bolts suitable for outdoor use?

No. The black beeswax hand-forged door bolts in this range are intended for interior use. Choose a product specifically described as exterior suitable, such as an Armor-Coat bolt or a suitable Tudor cast-iron bolt.

What is the difference between a straight and cranked door bolt?

A straight bolt is designed for fitting surfaces that are level or flush. A cranked bolt has an offset shape for surfaces at different levels, such as a recessed door or shutter.

Which door bolt finish is suitable for Accoya?

The Armor-Coat door bolts are specifically listed as compatible with Accoya timber. Always check the current product description before ordering hardware for modified or acidic timber.

Can a traditional door bolt be used on a bathroom door?

Yes, an interior-rated bolt can provide bathroom privacy. Consider the risk of accidental lock-ins and whether a privacy fitting with an external emergency release would be more appropriate.

Are Tudor door bolts suitable for coastal locations?

No. The current Tudor door bolt product information states that they are suitable for interior and exterior use but excludes coastal locations.

Do traditional door bolts provide security?

A door bolt can help keep a door closed, but it should not be assumed to provide certified security. Entrance doors and other security-sensitive locations should use an appropriate tested locking system.

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