What Size Screws Go On Outside Doors?

The standard screw size for door hinges is typically 8 x 1-1/2 inch or 10 x 2 inch wood screws, which provide a secure and stable installation for residential doors. These screws are suitable for various materials such as wood, plastic, metal, or masonry. However, the choice of screw size depends on the type of door and hinge, as well as the dimensions, materials, and weight of the doors.

For heavy-duty door hinges, it is crucial to choose the right screw size based on the dimensions, materials, and weight of the doors. The exterior door hinge should be chosen with screw number 9, as the security of the exterior door is essential. To determine the perfect screw size for the exterior door hinge, unscrew all the screws on only one door hinge using a phillips-head screwdriver or drill with a phillips-head bit.

When installing door hinges, ensure that you use the right size screws. Too small a screw can strip the hole and the hinge. The standard screw size for most residential door hinges is No. 9 screw, which is used for main doors and entry doors to houses. To secure the hinges to the stud, attach an 8 X 2-1/2″ or 3″ exterior grade screw, such as the SPAX Unidrive Combination Flat Head Multi-Material.

In general, 1 1/4″ (32mm) long screws are fine, but it may be necessary to wallow out old screw holes to prevent “biting”. All standard door hinges are squares and sized in 1/2″ increments (EX: 3 Inches, 3 1/2 inches, 4 Inches).