---
product_id: 515382921
title: "(10 Sets) 5/16-18x4\" Stainless Steel Hex Head Screws Bolts, Nuts, Flat & Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg"
brand: "fullerkreg"
price: "$62.60"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/515382921-10-sets-5-16-18x4-stainless-steel-hex-head-screws
store_origin: US
region: United States of America
---

# 5/16-18x4" fully threaded precision Includes nuts, flat & lock washers for secure fastening 18-8 (304) stainless steel corrosion resistance (10 Sets) 5/16-18x4" Stainless Steel Hex Head Screws Bolts, Nuts, Flat & Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg

**Brand:** fullerkreg
**Price:** $62.60
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock it down with pro-grade strength and style!

## Quick Answers

- **What is this?** (10 Sets) 5/16-18x4" Stainless Steel Hex Head Screws Bolts, Nuts, Flat & Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg by fullerkreg
- **How much does it cost?** $62.60 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/515382921-10-sets-5-16-18x4-stainless-steel-hex-head-screws)

## 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 Fastening Kit:** Includes hex nuts, flat washers, and lock washers for a professional-grade assembly
- • **ASME Standard Compliance:** Meets industry standards for reliable, consistent performance every time
- • **Precision Full Threading:** Ensures maximum grip and secure fastening in every application
- • **Heavy-Duty Hex Head Design:** Robust hexagonal head for easy installation with standard spanners and enhanced torque
- • **Premium 18-8 Stainless Steel:** Durable, corrosion-resistant material built to last in demanding environments

## Overview

This set of ten 5/16-18x4" hex head bolts by Fullerkreg features fully threaded shafts made from durable 18-8 (304) stainless steel, offering excellent corrosion resistance and strength. Each kit includes matching hex nuts, flat washers, and lock washers, ensuring a secure, professional fastening solution that meets ASME specifications for heavy-duty applications.

## Description



## Features

- A Hexagon Bolt is a threaded fastener with a hexagonal head shape, and are designed to be installed using a spanner. Hexagon bolts are favoured for their robust shape, which makes them suitable for more heavy-duty fastening applications. Hexagon bolts are also generally available in larger sizes than alternative fasteners.
- As their name suggests, Full Thread Hexagon Bolts are fully threaded. This type of bolt is required when the shaft of a fastener is being inserted completely into a threaded hole. Fully Threaded Bolts are often used to securely fasten two threaded sections together.
- Made from 18-8 stainless steel, FullerkregⓇ brand screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.
- Screws that meet ASME specifications comply with these dimensional standards.DIMENSIONS: Diameter: 5/16" | Length: 4" | Thread Type: 18 tpi Coarse Thread (Standard)
- Package includes ten each of bolts, hex nuts , Flat & Lock washers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Head style | Hex |
| Shape | Hexagonal |
| Item diameter | 0.31 Inches |
| Number of pieces | 5 |
| Grade rating | Class 10.9 |
| Manufacturer | Fullerdongluo |
| UPC | 799862376933 |
| Part number | 1 |
| Item Weight | 231 g |
| Item model number | 1 |
| Head Style | Hex |
| Cutting Diameter | 0.31 Inches |
| Measurement System | Inch |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** (5 Sets) 5/16x4"
- **Colour:** Plain
- **Material:** Stainless Steel
- **Brand:** Fullerkreg
- **Fastener type:** Bolt

## Images

![(10 Sets) 5/16-18x4" Stainless Steel Hex Head Screws Bolts, Nuts, Flat & Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg - Image 1](https://m.media-amazon.com/images/I/81XHEf9ORHL.jpg)
![(10 Sets) 5/16-18x4" Stainless Steel Hex Head Screws Bolts, Nuts, Flat & Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg - Image 2](https://m.media-amazon.com/images/I/71KSvoS4shL.jpg)
![(10 Sets) 5/16-18x4" Stainless Steel Hex Head Screws Bolts, Nuts, Flat & Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg - Image 3](https://m.media-amazon.com/images/I/81JQ3ipokXL.jpg)
![(10 Sets) 5/16-18x4" Stainless Steel Hex Head Screws Bolts, Nuts, Flat & Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg - Image 4](https://m.media-amazon.com/images/I/811Vua-HkoL.jpg)
![(10 Sets) 5/16-18x4" Stainless Steel Hex Head Screws Bolts, Nuts, Flat & Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg - Image 5](https://m.media-amazon.com/images/I/81I1JA0jFML.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: Are these zinc coated? I wanna use them in a grill but im not sure if they will give off any bad fumes when exposed to high heat.**
A: They are Stainless Steel, not zinc coated

**Q: how many total bolts are there? is it 6 bolts like in the picture or is it 5 sets of 6 bolts for a total of 30 bolts?**
A: qty 6, not 30

**Q: Are the nuts and washers stainless steel too?**
A: Yes of course.  All are stainless steel.

**Q: does it come in 1/4"?**
A: I use them as wheel axils on a travel cart; so far since I bought them over a month ago; still working, not broken.

## Frequently Bought Together

- (5 Sets) 5/16-18x4" Stainless Steel Hex Head Screws Bolts, Hex Machine Nuts, Fender Flat Washer& Split Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg
- (4 Sets) 3/8-16x4 Stainless Steel Hex Head Screws Bolts, Nuts, Flat & Lock Washers, 18-8 (304) S/S, Fully Threaded by Bolt Fullerkreg
- Mywish (10 Sets) 1/4-20x4 Hex Head Assorted Screws Nuts and Bolts with Flat & Lock Washers, 304 Stainless Steel 18-8, Fully Threaded, 1/4 Bolt Metric Bolt Assortment

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-19*