MARKWELL L3D 9/16″

The MARKWELL L3D 9/16″ Staples are professional-grade heavy-duty staples engineered to provide maximum holding strength for commercial, industrial, and construction applications. Manufactured from galvanized steel wire and built to exacting standards, the MARKWELL L3D 9/16″ Staples deliver smooth feeding, dependable driving, and exceptional fastening performance in compatible Markwell L3 Series tackers. Whether you’re securing mechanical insulation, installing HVAC duct wrap, fastening vapor barriers, assembling cartons, or completing production work, these staples are built to withstand demanding jobsite conditions while delivering consistent results.

Featuring a 9/16-inch (14 mm) leg length, a wide 7/16-inch flat crown, and heavy-duty 20-gauge galvanized wire construction, the MARKWELL L3D 9/16″ Staples provide superior penetration and outstanding holding power in a variety of materials. Precision-formed chisel-point legs drive cleanly into insulation facings, wood, corrugated materials, and other substrates while helping reduce staple jams and misfires. The galvanized finish offers excellent corrosion resistance, making these staples suitable for both indoor and outdoor commercial applications where long-term durability is important.

The MARKWELL L3D 9/16″ Staples are designed for use with Markwell L3 Series stapling tools, including the L3 Regular Straight Shoot Tacker and the L3-CS Outward Clinch Tacker. Mechanical insulation contractors rely on these staples for securing fiberglass pipe insulation, duct wrap, insulation jackets, and vapor barriers, while packaging facilities, warehouses, manufacturers, and industrial maintenance professionals use them for carton assembly, product labeling, crating, and general fastening applications. Their longer leg length provides increased holding power for thicker materials and demanding installations.

Every box of MARKWELL L3D 9/16″ Staples is manufactured with strict quality control to ensure consistent dimensions, reliable feeding, and dependable fastening performance from the first staple to the last. Contractors appreciate the reduced downtime, excellent penetration, and secure fastening these staples provide, helping improve productivity on every project. Whether you’re completing a commercial HVAC installation, mechanical insulation project, warehouse packaging operation, or industrial manufacturing task, MARKWELL L3D 9/16″ Staples deliver the durability, consistency, and professional-grade performance skilled tradespeople expect every day.

Features

• Genuine Markwell heavy-duty staples
• Model L3D
• 9/16-inch (14 mm) leg length
• Heavy-duty 20-gauge galvanized steel wire
• Approximately 7/16-inch flat crown
• Precision chisel-point legs
• Smooth, reliable feeding
• Corrosion-resistant galvanized finish
• Compatible with Markwell L3 Series tackers
• Ideal for insulation, HVAC, packaging, crating, and industrial fastening

Specifications

Manufacturer: Markwell

Model: L3D

Leg Length: 9/16″ (14 mm)

Crown Width: Approximately 7/16″ (11 mm)

Wire Size: 0.050″ × 0.020″ (1.27 × 0.50 mm)

Gauge: 20

Material: Galvanized Steel

Packaging: 5,000 Staples per Box

Compatible Tools: Markwell L3 Regular Straight Shoot Tacker, Markwell L3-CS Outward Clinch Tacker

Applications: Mechanical Insulation, HVAC Duct Wrap, Pipe Insulation, Vapor Barriers, Packaging, Carton Assembly, Warehousing, Manufacturing, Industrial Fastening