Surface bolt is one of the popular choice for fastening doors. Door is lock in place through surface bolt. This bolt functions by sliding up into the jamb above the door, and down into the threshold or floor below door. It is mainly used for application in double door where one door is mainly used and other is kept locked in place. The locked door can be open any time if required. Surface bolts are used on both wood or metal doors, either interior or exterior.
For various applications, surface bolts are always supplied with keeps or strikes. They are available in lot of sizes due to which they can be fitted on doors of different thickness and lengths. Surface bolts can be designed in various styles plain style, ornamental style or architectural style. Normally the ornamental surface bolts are used in heavy and long doors.

Materials Used in Surface Bolts

Surface bolts are constructed out of various materials:

• Brass
• Aluminum
• Iron
• Bronze
• Steel
• Wrought Iron

Finishes on Surface Bolts

Surface bolts are given more attractive appearance by various finishes. The popular finishes in which the surface bolts come are:

• Polished Chrome
• Satin Chrome
• Satin Nickel
• Antique Nickel
• Polished Brass
• Lacquered Brass
• Polished Nickel
• Satin Black
• Burnished Antique
• Antique Brass
• Oil Rubbed Bronze