---
product_id: 506914999
title: "(4 pc)3/8-16 x 5\" Long Square-Neck Carriage Bolts Set w/Nuts & Washers,Zinc-Plated,Carbon Steel Grade 2,by Fullerkreg"
brand: "fullerkreg"
price: "S$26"
currency: SGD
in_stock: true
reviews_count: 13
url: https://www.desertcart.sg/products/506914999-4-pc-3-8-16-x-5-long-square-neck
store_origin: SG
region: Singapore
---

# 5" length 3/8" diameter Zinc-plated (4 pc)3/8-16 x 5" Long Square-Neck Carriage Bolts Set w/Nuts & Washers,Zinc-Plated,Carbon Steel Grade 2,by Fullerkreg

**Brand:** fullerkreg
**Price:** S$26
**Availability:** ✅ In Stock

## Summary

> 🔩 Fasten with Confidence: The Ultimate Carriage Bolt Set!

## Quick Answers

- **What is this?** (4 pc)3/8-16 x 5" Long Square-Neck Carriage Bolts Set w/Nuts & Washers,Zinc-Plated,Carbon Steel Grade 2,by Fullerkreg by fullerkreg
- **How much does it cost?** S$26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/506914999-4-pc-3-8-16-x-5-long-square-neck)

## Best For

- fullerkreg enthusiasts

## Why This Product

- Trusted fullerkreg brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **🔧 Complete Set:** Includes 10 bolts, nuts, and washers for all your fastening needs.
- • **⚖️ Grade 2 Strength:** Ideal for light-duty applications without compromising quality.
- • **💧 Corrosion Resistant:** Zinc plating ensures durability in wet environments.
- • **🔒 Self-Locking Design:** Square neck prevents loosening in square holes.
- • **✅ Satisfaction Guaranteed:** Fullerkreg stands behind their products with a 100% satisfaction promise.

## Overview

This 4-piece set of 3/8-16 x 5" long square-neck carriage bolts, complete with nuts and washers, is crafted from durable zinc-plated carbon steel grade 2. Designed for light-duty fastening, these bolts feature a self-locking mechanism and are resistant to corrosion, making them perfect for various applications. Backed by a satisfaction guarantee, this set conforms to ANSI standard B18.5, ensuring reliability and quality.

## Description

Full description not available

## Features

- Carriage Bolts are a robust and durable fastener solution. Carriage Bolts feature a square section underneath their head, which makes them self-locking when used within a square hole.
- About half the strength of medium-strength bolts, these Grade 2 bolts are for light duty fastening.
- Zinc-plated steel bolts resist corrosion in wet environments.Fullerkreg Fasteners are always backed by a 100% satisfaction guarantee
- Imperial Carriage Bolts conform to ANSI standard B18.5. Diameters is 3/8 inch and lengths is 5 inch.
- Package includes ten each of bolts, hex nuts & washers

## Images

![(4 pc)3/8-16 x 5" Long Square-Neck Carriage Bolts Set w/Nuts & Washers,Zinc-Plated,Carbon Steel Grade 2,by Fullerkreg - Image 1](https://m.media-amazon.com/images/I/61hFUTYHqAL.jpg)
![(4 pc)3/8-16 x 5" Long Square-Neck Carriage Bolts Set w/Nuts & Washers,Zinc-Plated,Carbon Steel Grade 2,by Fullerkreg - Image 2](https://m.media-amazon.com/images/I/516lihfBQ0L.jpg)
![(4 pc)3/8-16 x 5" Long Square-Neck Carriage Bolts Set w/Nuts & Washers,Zinc-Plated,Carbon Steel Grade 2,by Fullerkreg - Image 3](https://m.media-amazon.com/images/I/51lmkwx6KtL.jpg)
![(4 pc)3/8-16 x 5" Long Square-Neck Carriage Bolts Set w/Nuts & Washers,Zinc-Plated,Carbon Steel Grade 2,by Fullerkreg - Image 4](https://m.media-amazon.com/images/I/51Lehh7GUbL.jpg)
![(4 pc)3/8-16 x 5" Long Square-Neck Carriage Bolts Set w/Nuts & Washers,Zinc-Plated,Carbon Steel Grade 2,by Fullerkreg - Image 5](https://m.media-amazon.com/images/I/510FcAd-rpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Good
  

*by A***R on Reviewed in the United States on December 12, 2022*

Good

### ⭐⭐⭐⭐⭐ 







  
  
    Good quality bolts
  

*by L***Y on Reviewed in the United States on November 13, 2022*

Worked out great, no issues

### ⭐⭐⭐ 







  
  
    Good enough.
  

*by J***. on Reviewed in the United States on April 4, 2021*

Obviously not grade 8 hardware but good enough for mild use. I used it for in bed tie downs on my car, work well enough, just dont over tighten them.

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**Shop now:** [https://www.desertcart.sg/products/506914999-4-pc-3-8-16-x-5-long-square-neck](https://www.desertcart.sg/products/506914999-4-pc-3-8-16-x-5-long-square-neck)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-11*