Does it work on smaller screws like No. 8 & 10 since it specifically says 3/8 to 1 in?

Used on my new pub chairs 1/4" bolts. I would think it would.

I want to know after the red permatex dries is the color still red or does it turn clear like red loctite?

Hi, I'm assuming you are talking about the Permatex (Color Red) RTV high temperature. If that's what you are regarding to it will harden as the color red as you see it. Good luck

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Permatex Red Threadlocker

Product ID: 5576564

Details

Brand
Permatex
Specific Uses For Product
Fleet and
Material
Epoxy Resin
Item Form
Liquid
Special Feature

🔥Heat or special tool removal

🔧Locks against vibration loosening

🔩3,000 PSI holding power

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

£19.32

Duties & taxes included

In stock

Sold byAmazon UKDelivered 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 UK.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🔩 Lock it down like a pro—because your projects deserve nothing less!

PRECISION APPLICATION - Perfect for critical components like cylinder blocks, rocker arm studs, and shock absorber bolts.
PERMANENT LOCKING POWER - Ideal for studs and press fits, replacing set screws and snap rings effortlessly.
VIBRATION PROOF SECURITY - Engineered to prevent loosening even under intense vibration—no more unexpected failures.
UNMATCHED HOLDING STRENGTH - Delivers 3,000 PSI to secure slip and press fit assemblies with confidence.
PROFESSIONAL GRADE COMPLIANCE - Meets rigorous ASTM and military standards for reliable, industrial-strength performance.

27140 High Strength Threadlocker Red is a 36 ml liquid adhesive designed to provide a permanent, vibration-resistant bond with 3,000 PSI holding power. Perfect for metal assemblies such as studs and press fits, it replaces traditional fasteners like set screws and snap rings. Conforming to ASTM and military standards, it ensures professional-grade reliability in demanding mechanical applications.

Specifications

Item Dimensions	1 x 3.81 x 8 inches
Item Weight	1.6 Ounces
Color	Red
Style Name	High Strength
Surface Recommendation	Metal
Supported Standards	Conforms to ASTM D5363 AN0221 (Mil-S- 46163A, Type I, Grade K), Conforms to ASTM D 5363 AN0321 (Mil-S-46163A, Type II, Grade N)
Water Resistance Level	Not Water Resistant
Item Form	Liquid
Compatible Material	Metal
Material Type	Plastic

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.