J-B Weld 24206 6ML Perma Lock Blue Medium Strength Threadlocker

J-B Weld 24206 6ML Perma Lock Blue Medium Strength Threadlocker – World’s Strongest Bond

J-B Weld Perma-Lock Blue (24206) is a medium strength threadlocker for locking and sealing metal fasteners that see shock and vibration. Use it anywhere you want hardware to stay put but still be removable later with standard hand tools. The 6 mL tube dispenses small, controlled drops onto bolt threads or the nut’s engagement area, then cures to a durable bond that resists loosening in service. Per the packaging, it’s temperature resistant to 300°F and ideal for 1/4″–1″ fasteners, covering the most common sizes found across vehicles, equipment, and fixtures. Typical uses shown on-pack include rocker arms, stud bolts, frame bolts, fasteners & bushings, loose screws, and other vibration-sensitive items—the exact places where clamp load must be maintained.

Compared with permanent red threadlockers, this blue threadlocker is designed for serviceability. Assemblies can be disassembled with hand tools after cure, making it a smart choice for repairs and routine maintenance on automotive and industrial equipment. Clean the threads, shake, apply several drops, assemble, and tighten to spec—no torque compensation required.

J-B Weld 6ML Perma Lock Blue Threadlocker At a Glance

• Medium Strength Formula: Holds under vibration yet allows removal with hand tools.
• 300°F Temperature Resistance: Reliable under-hood and shop conditions.
• Sized for 1/4″–1″ Fasteners: Covers common studs, bolts, and nuts.
• Prevents Back-Out: Locks clamp load on rocker arms, frame bolts, and bushings.
• For Metal Threads: Optimized for steel and other metal hardware.
• Easy Application: Small 6 mL tube with precision tip; no torque change needed after applying.
• Made in the USA: Consistent quality for professional use.

Markets

• Automotive Repair & Performance: Keeps engine and chassis hardware from loosening.
• Heavy Truck & Equipment: Reduces re-torque intervals on vibration-prone fasteners.
• Industrial Maintenance (MRO): Locks machine fasteners on pumps, guards, and fixtures.
• Construction & Fabrication: Secures jigs, rails, and equipment hardware.
• Powersports & Marine: Motorcycles, ATVs, and boats with frequent vibration.
• Municipal & Facility Maintenance: Doors, railings, carts, and shop equipment.
• Trade Schools & Training Labs: Demonstrates proper use of blue threadlocker on serviceable joints.

Mechanics choose a medium strength threadlocker when they need a dependable hold without making a joint permanent. On vehicles and equipment, Perma-Lock Blue helps keep stud bolts and frame bolts tight through vibration and heat cycles, cutting down on callbacks and re-torque checks. Industrial maintenance teams value the controlled application: a few drops on clean threads, tighten to specification, and the job moves forward. When parts must come apart later—brake service, bracket changes, or inspection—the joint can be broken loose with standard hand tools. For everyday fastener locking across automotive, MRO, and fabrication, this blue threadlocker hits the sweet spot between reliability and serviceability.

J-B Weld 24206 6ML Perma Lock Blue Medium Strength Threadlocker Features

• Medium-Strength Anaerobic Seal: Locks and seals metal threads against vibration-induced loosening.
• 300°F Rating: Maintains clamp load in hot engine bays and shop environments.
• 1/4″–1″ Fastener Range: Viscosity and strength tuned for common hardware sizes.
• Serviceable: Disassembles later with hand tools after full cure.
• Clear Instructions: Clean, shake, apply several drops, assemble, and tighten—no torque compensation required.
• Made in the USA: Consistent manufacturing quality

J-B Weld 24206 6ML Perma Lock Blue Medium Strength Threadlocker Includes

• (1) 6 mL (0.20 fl oz) tube of Perma-Lock Blue Medium Strength Threadlocker

J-B Weld 24206 6ML Perma Lock Blue Medium Strength Threadlocker Specifications

• Type: Medium strength blue threadlocker
• Volume: 6 mL (0.20 fl oz) (1) tube
• Temperature Resistance: Up to 300°F (149°C)
• Recommended Fastener Size: 1/4″–1″
• Fixture Time: 20 minutes
• Full Cure: 24 hours
• Typical Applications: (6) Rocker arms; Stud bolts; Frame bolts; Fasteners & bushings; Loose screws; Vibration-sensitive items
• Substrates: Metal fasteners and assemblies
• Country of Origin: USA
• UPC: 043425242068

Why Customers Select the J-B Weld 6ML Perma Lock Blue Medium Strength Threadlocker

Techs pick this blue threadlocker because it prevents loosening from shock and vibration while still allowing easy disassembly with hand tools. On 1/4″–1″ fasteners commonly found on rocker arms, brackets, and frames, the 300°F rating covers typical under-hood temperatures. The small tube applies precise drops that wick into threads and set in about 20 minutes, reaching full strength in 24 hours. For daily service work where joints must hold firm but remain serviceable, Perma-Lock Blue delivers the right balance of strength, temperature tolerance, and convenience.