Stanley Bostitch CAPPAK-1M Cap Staples 1 Inch 18 Gauge

Product Description

The STANLEY BOSTITCH CAPPAK-1M is a 1,000-count pack of cap staples designed for pneumatic cap staplers used in residential and light commercial construction. Each staple features a 1 inch leg length, 5/16 inch crown, and 18 gauge wire construction with a diamond point and smooth shank for consistent penetration and holding power. The steel staple pairs with a plastic cap to distribute load across the fastened material, reducing pull-through on flexible substrates. Staples are electro galvanized for corrosion resistance and collated with wire collation for reliable feeding.

These cap staples are suited for installation work involving felt paper, house wrap, and foam board insulation on exterior wall assemblies and roof decks. The cap-and-staple design prevents the fastener from pulling through lightweight or porous materials under wind load or during application. This makes them a practical choice for weatherization and building envelope work where standard staples or roofing nails would compromise the material. Installers use them during framing, sheathing, and insulation phases of residential and commercial construction projects.

Key Features

• 1 inch leg length with 5/16 inch crown for secure material engagement
• 18 gauge wire construction with diamond point for consistent drive
• Smooth shank design for clean penetration into sheathing substrates
• Steel staple with plastic cap distributes load and eliminates pull-through
• Electro galvanized finish provides corrosion resistance for exterior applications
• Wire collation format compatible with pneumatic cap stapler magazines

Compatibility

Suitable for use with the Bostitch SB150SLBC and SL1838BC pneumatic cap staplers.

Installation Notes

Cap staples of this type are installed by construction crews using compatible pneumatic cap staplers connected to a regulated compressed air supply. Verify air pressure settings are within the stapler manufacturer's specified range before loading. Inspect collation for damage before feeding to avoid jams. Follow applicable building code requirements for fastener spacing when securing house wrap or insulation to structural sheathing.