Door bolts with Armor-Coat have a UV and rust resistant protective finish making them suitable for internal or external use. These black knob bolts have a unique ball bearing system which allows them to keep their positive movement, unlike spring versions which lose tension over a period of time.

These door bolts are available in 4 inch and 6 inch sizes, with an option of cranked and straight styles.

Cranked Bolts: Also known as offset or necked bolts. These are designed for offset levels. Supplied with a mortice plate.

Straight Bolts: Designed for flush surfaces. Supplied with a receiver bridge.

Stonebridge Ironmongery offer premium door & window hardware collections. All items are designed and finished by hand in the Stonebridge Ironmongery Durham factory.

Armor-Coat Advanced Hardware Finish is a unique finish, specifically developed to provide corrosion protection in all weathers. Independent testing has awarded this finish BS EN 1670:2007 Grade 5, the highest anti-corrosion level for steel-based hardware in the industry. Compatible with Accoya wood, the world's leading high technology long-life wood. See our blog article .

• Material: Steel.
• Finish: Flat Black.
• Style: Door Bolts with Armor-Coat
  
• Advanced anti-corrosion Armor-Coat finish.
• Fixing screws included.
• 5 year guarantee (see for conditions).