Rivet Lock Bolt

Rivet lock bolts, also known as lockbolts, are two-piece high-strength fasteners consisting of a pin (bolt) with a factory-installed head and a separate collar. During installation, the collar is swaged into the pin’s locking grooves using a specialized hydraulic or pneumatic tool, creating a permanent, 360° mechanical lock. Unlike threaded fasteners, lockbolts cannot loosen under vibration and require no secondary tightening or maintenance.

Available Head Styles

Head Type	Description	Applications
Button Head	Low-profile, streamlined design; enhances aesthetics and reduces interference	Ideal for applications where space is limited or a clean appearance is desired
Truss Head	Larger head surface area; provides better force distribution and minimizes protrusion	Suitable for applications requiring a larger bearing surface to prevent material deformation

Materials

Material	Properties	Common Grades
Carbon Steel	High strength, cost-effective	Various heat-treated grades
Stainless Steel	Corrosion resistance, durability	304, 316

Surface Finishes

Zinc Plating (clear, yellow)
Passivation (stainless steel)
Other finishes (Dacromet, Geomet, etc.) available upon request

Mechanical Performance

Shear Strength: Typically 30–50% higher than structural blind rivets
Vibration Resistance: Exceptional – the swaged collar design prevents loosening even under high-frequency vibration
Clamp Force: Uniform and consistent across all installed fasteners
Tensile Strength: Superior to conventional bolts of comparable size

Applicable Standards