Newport Fasteners 3/8 Inch-24 x 1-1/4 Inch Hex Cap Screws Grade 8 Alloy Steel Zinc Yellow 100 Pack Fully Threaded
Why you'll like it
- Superior Strength — Manufactured from heat-treated medium-carbon alloy steel providing a minimum tensile strength of 150,000 psi for high-stress applications.
- Corrosion Resistance — Finished with a yellow zinc-chromate plating to protect against rust and wear in demanding environments.
- Maximum Engagement — Fully threaded fine UNF design ensures deep thread contact and secure fastening in tapped holes.
- Industry Compliance — Built to strict ASME B18.2.1 and SAE J429 specifications for reliable performance in automotive and structural projects.
Product details
Description
Engineered for demanding automotive, structural, and heavy-duty mechanical applications, these high-strength hex cap screws deliver exceptional durability and holding power. Manufactured from medium-carbon alloy steel and heat-treated to meet stringent ASME B18.2.1 and SAE J429 specifications, they offer a minimum tensile strength of 150,000 psi, outperforming standard grade 5 hardware.
The fully threaded shank provides maximum thread engagement in tapped holes or paired assemblies, ensuring a secure and reliable hold under intense stress. Coated with a yellow zinc-chromate plating, these fasteners offer reliable corrosion resistance and rust protection in demanding environments.
Featuring a standard six-sided hexagonal head with a washer face designed for easy tightening using a 9/16-inch wrench or socket, this 100-pack of fine UNF thread fasteners is built for professionals and industrial requirements.
How to use
- Select the correct hole size and tap with fine UNF threads if necessary.
- Align the components and insert the hex cap screw.
- Tighten securely using a compatible 9/16-inch wrench or socket wrench to the recommended torque specifications for high-strength grade 8 fasteners.
Ingredients
Medium-carbon alloy steel with yellow zinc-chromate protective plating.
As printed by the brand. Check the pack label if you have an allergy.
Specifications
| Brand | Newport Fasteners |
|---|---|
| EAN | 8945136578189 |
| Ships from | USA (sourced directly), checked in Navi Mumbai |
| Sold by | Dropy.in |
Ratings & reviews
From our customers
FAQs
What is a grade 8 cap screw?
A grade 8 cap screw is a high-strength fastener made from medium-carbon alloy steel that has been heat-treated. It features six radial lines on the head and offers a significantly higher tensile strength than standard grade 5 fasteners, making it ideal for high-stress automotive and structural uses.
What is grade 8 yellow zinc?
Grade 8 yellow zinc refers to alloy steel fasteners coated with a yellow zinc-chromate plating. This coating provides moderate corrosion resistance and helps easily identify the fastener grade.
Are these authentic USA-imported fasteners available on Dropy India?
Yes, these authentic USA-imported Newport Fasteners are sourced directly from the United States and delivered straight to your doorstep by Dropy India.
What wrench size is required for these screws?
These 3/8-inch diameter hex cap screws require a standard 9/16-inch wrench or socket for proper installation and tightening.
How long will delivery take?
Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.
Is cash on delivery available?
Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.
Are your products genuine?
Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.
What if my order arrives damaged or wrong?
Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.
Is delivery free?
Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.