• Happy Diwali from Dropy
  • 🎁 Free CeraVe gift on every order
  • 🚚 Free delivery from ₹1,499
  • 🎁 Free Squalane from ₹3,999
  • ✓ 100% genuine products, imported from the USA
  • 🎥 Every order packed on video
Diwali offerOffer
Prime-Line carriage bolts front view showing stainless steel finish and domed head.

PRIME-LINE

Prime-Line 9062545 Carriage Bolts 1/4 Inch-20 X 4 Inch Grade 18-8 Stainless Steel 15 Pack

Why you'll like it

  • Corrosion Resistance — Crafted from grade 18-8 stainless steel to withstand outdoor and marine environments without rusting.
  • Secure Installation — Features a square shoulder beneath the head that grips materials to prevent spinning during tightening.
  • Enhanced Safety — Smooth rounded domed head leaves no exposed sharp edges when fully fastened for a clean finish.
  • Standard Compatibility — Designed with a coarse 1/4 inch-20 thread size and a 4 inch length meeting ASME and ASTM specifications.

Product details

Upgrade your hardware collection with the Prime-Line 9062545 Carriage Bolts, designed for secure and reliable fastening across various woodworking, marine, and outdoor projects. Manufactured from premium grade 18-8 stainless steel, these fasteners offer exceptional corrosion resistance and durability, making them ideal for environments exposed to moisture.

Each bolt features a smooth, rounded domed head that eliminates sharp edges for a clean aesthetic finish and enhanced safety on playground equipment, docks, and wooden beams. Beneath the head lies a square shoulder designed to self-lock into wood or metal, effectively preventing the bolt from spinning while you tighten or loosen the nut from the opposite side.

This 15-pack provides reliable performance for professionals and DIY enthusiasts tackling heavy-duty assembly tasks.

  1. Insert the carriage bolt through a pre-drilled hole matching the 1/4 inch diameter.
  2. Ensure the square shoulder under the domed head seats firmly into the wood or metal material to prevent rotation.
  3. Attach a compatible nut and washer of the same diameter on the threaded end, and tighten securely using a wrench.

Grade 18-8 Stainless Steel

As printed by the brand. Check the pack label if you have an allergy.

BrandPRIME-LINE
UPC049793132871
Ships fromUSA (sourced directly), checked in Navi Mumbai
Sold byDropy.in

Ratings & reviews

From our customers

No reviews yetBe the first to review this product.
Write a reviewPrime-Line 9062545 Carriage Bolts 1/4 Inch-20 X 4 Inch Grade 18-8 Stainless Steel 15 Pack

More from PRIME-LINE

View all

FAQs

What is the size of a 1/4 inch-20 bolt?

A 1/4 inch-20 bolt has a nominal body diameter of 1/4 inch and features 20 coarse threads per inch under the Unified National Coarse thread standard.

What size hole is needed for a 1/4 inch carriage bolt?

You should drill a hole that matches the 1/4 inch diameter of the bolt shank, allowing the square neck directly beneath the head to bite snugly into the material for a secure, non-spinning fit.

Are nuts and washers included in this pack?

No, nuts and washers are not included with this 15-pack of carriage bolts. You should ensure that any separately purchased nuts and washers match the 1/4 inch-20 thread diameter.

Are these Prime-Line carriage bolts authentic USA-imported products?

Yes, all products available on Dropy India are 100% authentic items directly sourced from the United States, ensuring you receive genuine manufacturer quality.

What applications are best suited for these carriage bolts?

These carriage bolts are commonly used for fastening wooden beams, constructing outdoor docks, assembling playground equipment, and securing projects where the bolt head cannot be easily accessed with standard tools.

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.