High Strength Red Threadlocker, Fasteners Over 1″ – MIL-S-46163A – MRO
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- ✓ High-strength red, formulated for large-diameter fasteners over 1″
- ✓ Permanent-grade lock and seal against heavy vibration and load
- ✓ Meets MIL-S-46163A, Type I, Grade L
- ✓ Stocked from 10 ml bottles up to 1-liter jugs
High Demand Item – Frequently Reordered by Contractors
Solution 14 is a high-strength, high-viscosity single-component anaerobic red threadlocker formulated for large-diameter fasteners – those greater than 1 inch. It cures in the absence of air between metal threads for a permanent-grade hold on big bolts and studs that see heavy load and vibration.
Supplied as a red liquid; because it’s a high-strength grade, disassembly is difficult and typically requires heat. Its higher viscosity suits large, coarse threads, and it is sized through 1-liter jugs for large-fastener and high-volume work.
Applications
- Large-diameter bolts and studs greater than 1 inch
- Heavy structural and equipment fastening
- High-load flanged and bolted connections
- Permanent assemblies on large equipment
- Sealing large threaded connections against leaks and corrosion
Key Features
- High strength – permanent-grade hold
- Higher-viscosity formula for large, coarse threads
- Formulated for fasteners larger than 1 inch
- Anaerobic cure – sets only between metal threads
- Red color for quick identification
- Meets MIL-S-46163A, Type I, Grade L
- Sets in 5–15 min; reaches full strength in 24 hours
Specifications
| Type | Anaerobic threadlocker, single-component |
| Strength | High (permanent; removal requires heat) |
| Color | Red |
| Service Temperature | –65°F to +300°F |
| Fixture Time | 5–15 min |
| Full Cure | 24 hours |
| Viscosity | 6000–8000 cP |
| Max Gap Fill | 0.010 in |
| Breakaway Torque | 220–305 in-lb |
| Prevailing Torque | 170–260 in-lb |
| Shelf Life | 1 year (minimum) |
| Fastener Size | Larger than 1″ diameter |
| Military Spec | MIL-S-46163A, Type I, Grade L |
| Available Sizes | 10 ml, 50 ml, 250 ml, 1 L Jug |
Best Used For
- Large-diameter bolt and stud assemblies
- Heavy equipment and structural fastening
- High-load connections that must not loosen
- Higher-volume production with large fasteners
FAQ
How is this different from standard red threadlocker?
It’s a higher-viscosity grade formulated specifically for large-diameter fasteners – those greater than 1 inch.
Can treated fasteners be removed?
It’s a high-strength, permanent grade – disassembly is difficult and typically requires heat.
Does it meet a military specification?
Yes – MIL-S-46163A, Type I, Grade L.
Does it need mixing?
No. It’s a single-component product that cures between metal threads.
Why Contractors Choose This
- Purpose-built for the large fasteners standard grades aren’t optimized for
- Permanent, high-strength hold at distributor pricing
- Backed by a recognized military spec (MIL-S-46163A)
- Single-component and fast to apply
- Case pricing that drops as the order grows
- ✓ Meets MIL-S-46163A, Type I, Grade L
- ✓ Higher-viscosity formula for fasteners larger than 1″
- ✓ Bulk and case pricing built for shops and contractors
- ✓ Sold and supported by a distribution team with decades in the trade
Buy More. Save More.
Save 10% when you order a full case. Case and volume pricing available on every size – contact us for shop and contractor pricing on multi-case orders.