This shape weatherstrip is used for the head and sills of double hung wood windows with interlocking style weatherstrip. See details below. This particlular size is used for the head of a 1-3/8" thick sash. Nails available separately. See below for other widths. Measures 1" wide. Head & Sill Weatherstrip 2PB x 36"$12.72, 10/$101.80 Detail of Head Section Detail of Sill Section Head & Sill Weatherstrip 1-3/8" Wide BronzeUsed for the sill on 1-3/8" thick sash and on the head of 2" and 2-1/4" thick sash. Measures 1-3/8" wide. 4PB x 36"$15.78, 10/$126.20 Sill Weatherstrip 1-3/4" Wide BronzeFor the sill of 1-3/4" thick windows. Measures 1-3/4" wide. 7PB x 36"$18.48, 10/$147.80 Sill Weatherstrip 2" Wide BronzeFor the sill of 2" thick windows. (No photo, similar to 7PB but 1/4" wider.) 9PB x 36"$20.22, 10/$161.80 Head Weatherstrip 1" Wide ZincHead weatherstrip for 1-3/8" or 1-3/4" thick sash. Measures 1" wide. 2P x 36"$6.06, 20/$97.00 Head or Sill Weatherstrip 1-3/8" Wide ZincSill weatherstrip for 1-3/8" wide sash or head weatherstrip for 2" or 2-1/4" thick sash. Measures 1-3/8" wide. 4P x 36"$6.48, 20/$103.60 Sill Weatherstrip 1-3/4" Wide ZincSill weatherstrip for 1-3/4" wide sash. Measures 1-3/4" wide. 7P x 36"$7.50, 20/$120.00 Coppered Nails 3/4" x 17Copper plated steel nails suitable for weatherstripping. Traditionally used with spring bronze weatherstrip. 1-1/2 oz. package. Contains about 150 nails. If you nail every 1-1/2" this will fasten 18 feet 9 inches of weatherstrip. If you nail every 2" this will fasten 25 feet of weatherstrip. If you nail every 1.6" 5 packages will fasten 100 feet. 51758$1.19, 5/$4.50 Nail Stainless 3/4" x 17Stainless steel nails suitable for weatherstrip. 2 oz. package. Contains about 200 nails. If you use 1 nail every 1-1/2" this will fasten 25 feet of weatherstrip. 5061379$1.99 Solid Bronze Nails 3/4"Although the copper plated steel nails were traditionally used for all bronze weatherstripping installations, we also offer solid bronze nails for use in salt water or other corrosive environments. Bronze nails measure 3/4" long with a 5/32" diameter head. If you nail every 1.6", two packages will nail 100 feet. 3/4" Bronze Nail 375 Pk.$9.60 Solid Bronze Nails 1"Although the copper plated steel nails were traditionally used for all bronze weatherstripping installations, we also offer solid bronze nails for use in salt water or other corrosive environments. Bronze nails measure 1" long with a 5/32" diameter head. If you nail every 1.6", five packages will nail 100 feet. 1" Bronze Nail 150 Pk.$6.00