Bolt Screw for Zambelli Downspout Brackets (Painted & Galvanized)


Exact replacement Bolt Screw for Zambelli Downspout Brackets

If you are ordering our painted or galvanized downspout brackets, do not order! This part is already included with your brackets!

Important: Zambelli colors do not always correspond to American gutter colors, for example, Zambelli Dark Bronze is a very close match to Senox Musket Gray, but not at all similar to their Dark Bronze. If your expectation is to color match another gutter manufacturer’s colors, please contact us for a  color sample prior to placing an order.

Quantity Pricing Discount (%) Price
1 - 24 $5.36
25 - 49 6.16 % $5.03
50+ 12.69 % $4.68


This is the exact bolt screw we ship with all Zambelli painted & galvanized steel downspout brackets.

This bolt screw features one end with an M10 machine thread and will fit any bracket that uses an M10 thread. The other end is a coarse thread suitable for installation directly into wood (pre-drilling required). The Torx drive makes installation a breeze using any standard screw gun or impact driver (bit not included)


  • Overall length: 3-7/8″
  • M10 machine thread for insertion in brackets
  • Coarse lag bolt thread for installation in wood (pre-drilling required)
  • Torx drive (on machine thread end) makes installation fast and clean (driver bit not included)
  • Heavy zinc plating for corrosion resistance
  • Perfect fit for Zambelli painted and galvanized downspout brackets, will fit others with an M10 socket


Additional information

Weight 1.75 oz
Dimensions 4 × 0.375 × 0.375 in