Bostitch 73349 PC4000-OC2 Outward Clinch Insulation Tacker

Product Description

The Bostitch 73349 is the PC4000-OC2 Outward Clinch Insulation Tacker, a purpose-built fastening tool designed for insulation installation in residential and commercial construction. HVAC contractors, insulation installers, and general contractors rely on outward clinch tackers to secure batt insulation, vapor barriers, and fiberglass blankets to wall studs, ceiling joists, and floor framing. The outward clinch mechanism sets this tacker apart from standard staplers. When a staple is driven, the legs of the staple clinch outward rather than inward, spreading apart to grip the material firmly on the back side. This creates a secure mechanical hold that resists pullout, which is critical when fastening flexible insulation that can sag or shift over time. The result is a clean, professional installation that holds insulation in place without tearing or bunching the facing material. The PC4000-OC2 model is specifically engineered for high-volume insulation work. It is a pneumatic tacker, meaning it runs on compressed air, which allows for rapid, consistent fastening without the fatigue associated with manual or electric tools. Pneumatic tools like this one are standard equipment on insulation crews because they deliver repeatable driving force across hundreds or thousands of staples per shift. For HVAC technicians, this tacker is commonly used to secure duct wrap insulation, pipe insulation blankets, and flexible duct insulation to framing or mechanical components. Plumbers and building envelope contractors also use outward clinch tackers when installing vapor retarders and thermal barriers. The Bostitch brand is widely recognized in the professional trades for durable, dependable pneumatic tools built to handle demanding jobsite conditions.

• Outward clinch staple mechanism provides superior pullout resistance for insulation and vapor barrier installation
• Pneumatic operation delivers consistent fastening force across high-volume applications without operator fatigue
• Built for use by HVAC contractors, insulation installers, and commercial construction crews

Product Highlights

The Bostitch 73349 PC4000-OC2 Outward Clinch Insulation Tacker is a pneumatic fastening tool engineered for professional insulation installation, delivering secure outward clinch holding power across demanding construction and mechanical applications.

Product Information

Standard Information

• Brand: BOSTITCH
• Manufacturer Part Number: 73349

Technical Specifications

• Model Number: 73349
• Model Name: PC4000-OC2
• Clinch Type: Outward Clinch
• Tool Type: Pneumatic Insulation Tacker
• Application: Insulation, Vapor Barrier, Duct Wrap Fastening