---
product_id: 499485788
title: "3/8-16 x 4 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 6 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner"
brand: "glvaner"
price: "$32.60"
currency: USD
in_stock: true
reviews_count: 9
category: "Glvaner"
url: https://www.desertcart.us/products/499485788-3-8-16-x-4-inch-carriage-bolt-kit-304
store_origin: US
region: United States of America
---

# 3/8-16 x 4 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 6 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner

**Brand:** glvaner
**Price:** $32.60
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 3/8-16 x 4 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 6 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner by glvaner
- **How much does it cost?** $32.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/499485788-3-8-16-x-4-inch-carriage-bolt-kit-304)

## Best For

- glvaner enthusiasts

## Why This Product

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

## Description

3/8-16 x 4 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 6 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner: desertcart.com: Industrial & Scientific

Review: Good price - Great carriage bolts
Review: Wear bar bolts and nuts - Very good price and quality. Exact fit for my Denali snow plow wear bar.

## Features

- Ready to Use – Save Time & Effort: This complete 6-piece set includes 6 precisely matched 3/8-16 x 4" Carriage Bolts, 6 Hex Nuts, and 6 Flat Washers; No more separate purchases or surprise missing parts—get everything you need to start and finish your project efficiently
- Engineered from Grade A2-70 304 (18-8) Stainless Steel, these fasteners deliver significantly greater corrosion resistance and strength compared to zinc-plated or lower-grade alternatives. Designed to perform reliably in both indoor and demanding outdoor environments
- Precision Machining – For a Smooth, Flawless Fit: Every bolt is manufactured to meet ANSI B18.5 standards, ensuring consistent quality, precise threads, and accurate dimensions. This ensures smooth installation, prevents cross-threading, and delivers a secure, reliable fit in every application
- Full Thread Design & Locking Square Neck – Unmatched Strength & Easy Installation: Featuring Full Thread Coverage from neck to tip for maximum nut engagement and superior strength. Moreover, the integrated square neck is designed to bite securely into wood, preventing the bolt from spinning during nut tightening—saving you time and frustration. This robust combination ensures a vibration-resistant and permanently secure connection
- Versatile, Heavy-Duty Fastening Solution: Perfect for a wide range of critical applications. From securing deck boards to joists and reinforcing trailer beds and ramps, to building fences, pergolas, and outdoor furniture. Also ideal for agricultural equipment repair, workshop jigs, playground structures, and securing ledger boards to framing. Designed to provide a secure, permanent connection where strength and reliability matter most

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09D92FFHK |
| Best Sellers Rank | #3,892 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Carriage Bolts |
| Brand | Glvaner |
| Color | Silver |
| Customer Reviews | 4.7 4.7 out of 5 stars (716) |
| Drive System | External Hex |
| Exterior Finish | Stainless Steel |
| Fastener Size | 3/8-16 x 4" |
| Fastener Type | Carriage Bolt |
| Finish Types | Brushed |
| Grade Rating | Grade A2-70 |
| Head Type | Round |
| Item Diameter | 0.38 Inches |
| Item Hardness | Rockwell B70 |
| Manufacturer | Glvaner |
| Manufacturer Grade | Grade 304 |
| Material Type | Stainless Steel |
| Model | GVNA36057-6 |
| Number of Pieces | 6 |
| Part Number | GVNA36057-6 |
| Screw Head Style | Round |
| Size Name | 3/8-16 x 4" |
| Thread Class | 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | 3/8"-16 |
| Thread Style | Right Hand |
| Thread Type | Thread Type: Coarse |
| UPC | 793869888604 |
| Unit Count | 6.0 Count |

## Product Details

- **Exterior Finish:** Stainless Steel
- **Head Style:** Round
- **Manufacturer Grade:** Grade 304
- **Material:** Stainless Steel
- **Thread Size:** 3/8"-16

## Images

![3/8-16 x 4 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 6 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner - Image 1](https://m.media-amazon.com/images/I/6152oo1b9ZL.jpg)
![3/8-16 x 4 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 6 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner - Image 2](https://m.media-amazon.com/images/I/71iVL-auBKL.jpg)
![3/8-16 x 4 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 6 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner - Image 3](https://m.media-amazon.com/images/I/71kitRflmTL.jpg)
![3/8-16 x 4 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 6 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner - Image 4](https://m.media-amazon.com/images/I/81iSDeGJq1L.jpg)
![3/8-16 x 4 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 6 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner - Image 5](https://m.media-amazon.com/images/I/61EJiOLG6HL.jpg)

## Available Options

This product comes in different **Size, Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good price
*by C***T on February 21, 2026*

Great carriage bolts

### ⭐⭐⭐⭐⭐ Wear bar bolts and nuts
*by J***. on November 6, 2025*

Very good price and quality. Exact fit for my Denali snow plow wear bar.

### ⭐⭐⭐⭐⭐ Good
*by J***D on November 11, 2025*

Solid, well made, nice set price , correct size

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-06-07*