✨ Christmas Special: Get 35% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Xmas Gift Idea 3/8-16 X 6 Grade 5 Hex Cap Screw Zinc Plated Domestic Usa (175) Full Package [Jy6lIBHO]

$43.99 $140.99 -69%

Top-Quality 3/8-16 Hex Cap Screws Introducing our premium 3/8-16 x 6 Grade 5 Hex Cap Screws, a reliable choice for your mechanical fastening needs. These screws are crafted with precision in the USA from high-quality medium carbon steel, ensuring dur

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Xmas Gift Idea 3/8-16 X 6 Grade 5 Hex Cap Screw Zinc Plated Domestic Usa (175) Full Package [Jy6lIBHO]

Top-Quality 3/8-16 Hex Cap Screws

Introducing our premium 3/8-16 x 6 Grade 5 Hex Cap Screws, a reliable choice for your mechanical fastening needs. These screws are crafted with precision in the USA from high-quality medium carbon steel, ensuring durability and strength. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications, guaranteeing top-notch quality and performance. With a wide range of applications, these screws are an essential component for any project that requires a secure and long-lasting fastening solution.

Robust Specifications and Features

Our 3/8-16 x 6 Grade 5 Hex Cap Screws are engineered to meet the highest industry standards. They feature rolled threads for increased strength and reduced threading friction. The typical hardness on diameters 1/4 to 1 inch is HRC 25-34, while diameters over 1 inch to 1 1/2 have a hardness range of HRC 19-30. This ensures that these screws can withstand the toughest conditions. With a tensile strength of a minimum of 120,000 psi for diameters 1/4 to 1 inch and 105,000 psi for diameters over 1 inch to 1 1/2, these screws are built to last.
  • Strength: Tensile strength up to 120,000 psi for diameters 1/4 to 1 inch
  • Hardness: Consistent hardness across different diameters for reliability

Practical Applications and Benefits

Whether you're working on construction, automotive, or general assembly projects, these Grade 5 Hex Cap Screws are a versatile and practical choice. Their zinc plated finish offers excellent corrosion resistance, making them suitable for outdoor and harsh environments. With a domestic USA origin, you can trust in the quality and reliability of these products.
  • Corrosion Resistance: Zinc plated finish for outdoor and harsh conditions
  • Domestic USA Origin: Trust in the quality and reliability of USA-made products
Upgrade your project with our top-quality 3/8-16 x 6 Grade 5 Hex Cap Screws and experience the difference in strength and performance.

What Our Customers Say

January 17, 2026

Absolutely no complaints!

The performance is solid and incredibly steady.

- Manfred M..

January 17, 2026

Absolutely no complaints!

This is a truly useful and a very quality product.

- Rhianedd Q..

January 17, 2026

Absolutely no complaints!

This is a really nice and a very, very useful gadget.

- Hywel I..

Write a Review

You Might Also Like

Discover more great products from our collection.

Let's lie together, my friend

Let's lie together, my friend

(103)
$88.99 $284.99 -69%
Cannondale Trail Neo 1

Cannondale Trail Neo 1

(291)
$63.99 $204.99 -69%

Copyright 2026 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY