GCi G-16 Bolt Pinch Clamps for Inside-Mount Tonneau Covers – 6 Pack, USA Made

Overview

Elevate your inside-mount tonneau installation with the GCi G-16 1.75 bolt pinch clamps. Crafted in the USA from durable 6000-series structural aluminum, these clamps deliver a solid, dependable grip while protecting the aluminum surface with a carefully designed shoulder bolt that prevents digging during tightening. The result is a clean, secure mounting that remains responsive to routine adjustments and road wear.

Durable construction you can feel

Each clamp is built from high-strength aluminum and finished for consistent performance across weather, dust, and daily use. The shoulder bolt guides tightening pressure away from vulnerable edges, helping to preserve the rail and payload without sacrificing grip strength.

Key specifications

• Jaw opening range A: 1/4" to 5/8" and mounting width B: 1 1/2"
• Pack size: 6 clamps per bundle (also offered in a 4-pack)
• Material: 6000-series structural aluminum for rigidity and longevity
• Made in the USA with quality control focused on reliable performance
• Shoulder bolt design reduces the risk of gouging aluminum while tightening

Installation and usage notes

Measure the mounting dimensions of your tonneau system before purchasing. This set is designed for inside-mount applications and partners with a range of rail and lip configurations. For a larger jaw opening (A) in the 1/2" to 3/4" range, search ASIN B09RTLGVL7.

Real-world benefits and scenarios

Ideal for securing tonneau covers on trucks with cargo rails, caps, or camper shells. The 1.5" mounting width supports common fit profiles, while the 1/4"–5/8" jaw range accommodates typical mounting lips without over-tightening. Expect a straightforward installation process, a sturdy hold, and a mounting system that can be reconfigured as needed when you swap or remove covers.

Compatibility snapshot

While designed for inside-mount setups, these clamps are part of a family aligned with various model notes in the listing. Always verify your specific rail, cap, or shell configuration and consult the product notes for guidance on related clamp variants if your vehicle uses unique mounting points.

What you’ll appreciate

• Made in the USA with a focus on quality and strength
• Secure interior mounting that protects aluminum surfaces
• Clear dimensions and a straightforward 6-pack for complete coverage