TORNILOCK® T-43 

Per the TDS, handling time is 10 to 12 minutes, work time is 1 to 3 hours, and full cure is reached in 24 hours at 22°C on carbon steel M10 fasteners. On passive substrates such as zinc-plated steel, cure is significantly slower — use an activator to accelerate the process.

Yes. T-43 is a medium strength threadlocker (break torque: 180 lbf·in (20 N·m) on M10). Fasteners are removable with standard hand tools without heating. For easier disassembly, consider T-22 (low strength, 53 lbf/in (5 N·m)). For permanent locking, T-63 (high strength, 250 lbf·in (28 N·m)).

Yes. T-43 is formulated to be oil tolerant and cures rapidly on plated, oily, or inactive metal surfaces. For best performance, remove excess oil before application.

A thixotropic threadlocker maintains its consistency at rest but flows when agitated or applied. In practice, this means T-43 will not drip or run when applied to vertical or overhead surfaces, staying exactly where placed.

T-43 is rated for threads up to 3/4" diameter with a gap fill of 0.79 in (20 mm). For larger diameters up to 1 in. (M24), consider TORNILOCK® T-63.

T-43 is a medium strength anaerobic threadlocker: blue color, oil tolerant, temperature range −67°F to +302°F (−55°C to +150°C). Key differentiator: thixotropic viscosity of 2,250 cps and 0.008 in (0.20 mm) gap fill. Contact us to request a direct comparison sheet.

Blue color in an anaerobic threadlocker signals medium strength with controlled disassembly. TORNILOCK® T-43 — blue — balances secure locking (180 lbf·in (20 N·m) break torque) with maintenance practicality: removable with standard hand tools, no heating required. This makes it the most versatile thread lock blue option for OEM and industrial MRO production, replacing lock washers and nylon inserts.

A blue threadlocker like TORNILOCK® T-43 reaches handling strength in 10-12 minutes at 22°C on carbon steel — meaning the part can be moved on the assembly line. Working strength develops in 1 to 3 hours, and full cure in 24 hours. Anaerobic threadlockers do not "dry" by solvent evaporation — they cure between metal threads in the absence of oxygen. On passive substrates such as zinc-plated steel, cure is significantly slower; use an activator to accelerate.

The T-43 is a medium strength, fully removable threadlocker. It locks against vibration with a break torque of 180 lbf·in (20 N·m) on M10 carbon steel — yet the fastener can still be released with standard hand tools, no heat or solvents required. This is the differentiator vs a permanent grade: the T-43 is engineered for assemblies that may need future maintenance. For permanent locking on heavy-vibration or critical structural fasteners up to 1 in. (M24), see TORNILOCK® T-63.

No. Once cured, an anaerobic blue threadlocker like the T-43 forms a thermoset polymer that is electrically insulating in standard low-voltage industrial conditions. The T-43 contains no metallic fillers and no solvents. For applications with specific dielectric requirements (high voltage, EMI, conductive paths) request the dielectric strength data from our technical team.