Why is this labeled as a primerless thread locker? Literally the first step on the package instructions is to prep your surface with a primer.

Loctite 263 is actually primerless on most metals. This is an automotive aftermarket package, and there is a Klean 'n' Primer product sold that is usually suggested for all anaerobic products. You can just clean the parts with alcohol or acetone. No primer is required. If you need further assistance, please contact the LOCTITE Technical team at 1-800-LOCTITE

Does Loctite 263 have a limited shelf life?

Yes, Loctite 263 threadlocker has a limited shelf life of 730 days from the date of manufacture. This means that it is important to check the expiration date on the product before using it. If the product is expired, it may not perform as expected.

Approximately how many 1/4" studs can be set with the 6m tube?

For small threads, we typically recommend applying 1 big drop (or 2 drops small/medium drop max) to the male threads at the engaging area, vs the female thread in the hole in a blind. The idea is to ensure a good coverage in the engaging/mating area of the nut and bolt. For 1/4" bolt, I estimate 200 bolts with a 6ml tube, of a manual application from the bottle.

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Loctite 263 Threadlocker for Automotive: High-Strength, Oil Tolerant, High-Temp, Fluorescent, Anaerobic | Red, 6mL Tube (PN: 2203451)

Loctite 263 Threadlocker for Automotive: High-Strength, Oil Tolerant, High-Temp, Fluorescent, Anaerobic | Red, 6mL Tube (PN: 2203451)

Product ID: 319115162

Details

Brand
LOCTITE
Item form
Liquid
Material
Acrylic
Special features
Strong
Specific uses for product
Automotive

🔥Heat resistant -65°F to 360°F

🔩High-strength hold up to 1 inch fasteners

🛢️Oil tolerant for dirty surfaces

$34.15

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Description

🔧 Lock it down like a pro — no slip, no stress!

UNBREAKABLE BOND - Locks and seals threaded fasteners permanently, preventing loosening from shock and vibration.
OIL TOLERANT FORMULA - Works flawlessly even on surfaces with cutting oils, lubricants, and anti-corrosion fluids.
FAST EFFICIENT CURE - Achieves full strength in just 10 minutes, speeding up your automotive repairs.
HIGH TEMP PERFORMANCE - Maintains strength and integrity in extreme temperatures from -65°F to 360°F.
VERSATILE METAL COMPATIBILITY - Cures reliably on active and passive metals including stainless steel, brass, and plated surfaces.

Loctite 263 Threadlocker is a high-strength, red acrylic adhesive designed for permanent locking and sealing of metal fasteners up to 1 inch. It cures anaerobically on a wide range of metals, tolerates oil contamination, and withstands extreme temperatures from -65°F to 360°F. Ideal for heavy-duty automotive applications, it fully cures in 10 minutes, ensuring durable, vibration-resistant joints that keep your machinery running smoothly.

Specifications

ASIN	B07FMP2TBK
Best Sellers Rank	#86,140 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #491 in Hardware Sealers
Brand	LOCTITE
Brand Name	LOCTITE
Color	red
Colour	red
Compatible Material	Metal
Container Type	Tube
Customer Reviews	4.8 out of 5 stars 601 Reviews
Full Cure Time	10 Minutes
Global Trade Identification Number	00079340011649
Included Components	(1) Threadlocker 263 Surface Insensitive-High Strength Tube, Red, 6-ml
Item Form	Liquid
Item Package Quantity	1
Item Type Name	automotive-thread-lock-sealers
Item Weight	0.01 Ounces
Item form	Liquid
Manufacturer	LOCTITE
Material	Acrylic
Material Type	Acrylic
Model	2205310
Number of Pieces	1
Other Special Features of the Product	Strong
Part Number	2203451
Special features	Strong
Specific Uses For Product	Automotive
Specific uses for product	Automotive
UPC	079340011649
Unit Count	6 Milliliters
Viscosity Level	Medium
Volume	6 Milliliters
Water Resistance Level	Water Resistant

Reviews

L**.

Item as described!

18.09.2026

L**S

Great product. It works.

This product helped fix my car. Its still going strong.

15.05.2026

G**O

La mejor marca para aplicaciones críticas, total seguridad si se instala bien

Compré este fijador específicamente para la instalación de unos separadores de rueda en mi Jeep, y la verdad es que es la mejor marca del mercado para este tipo de trabajos. Al tratarse de componentes que exigen la máxima seguridad, este producto te da toda la confianza del mundo. Hasta el momento no he tenido ningún tipo de detalle y los tornillos se mantienen perfectamente firmes. Eso sí, recomiendo ampliamente seguir las instrucciones de manera muy cuidadosa y adecuada para asegurar el correcto funcionamiento del producto. Nuevamente, es un artículo para el cual se debe tener el conocimiento técnico básico sobre su aplicación y tiempos de curado; no es para tomarse a la ligera. Totalmente recomendado si buscas calidad profesional.

12.07.2026

T**N

Great

21.05.2026

M**U

Cumple con sus especificaciones. Loctite es una garantía.

La marca es una garantía. Lo recomiendo.

18.09.2025

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$34.15

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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TrustScore 4.5 | 7,300+ reviews

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