---
product_id: 43899977
title: "Type 316 Stainless Steel Hex Head Bolts - Size 1/4-20 x 1/2\" (pack of 25pcs) Marine Bolt Supply"
brand: "marine bolt supply"
price: "R505"
currency: ZAR
in_stock: true
category: "Marine Bolt Supply"
url: https://www.desertcart.co.za/products/43899977-type-316-stainless-steel-hex-head-bolts-size-1-4
store_origin: ZA
region: South Africa
---

# Hex Head Design - Easy wrench compatibility Coarse Thread - Superior grip & fastening strength 316 Marine Grade Steel - Ultimate corrosion resistance Type 316 Stainless Steel Hex Head Bolts - Size 1/4-20 x 1/2" (pack of 25pcs) Marine Bolt Supply

**Brand:** marine bolt supply
**Price:** R505
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock in strength, resist rust, and lead the pack with marine-grade bolts!

## Quick Answers

- **What is this?** Type 316 Stainless Steel Hex Head Bolts - Size 1/4-20 x 1/2" (pack of 25pcs) Marine Bolt Supply by marine bolt supply
- **How much does it cost?** R505 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/43899977-type-316-stainless-steel-hex-head-bolts-size-1-4)

## Best For

- marine bolt supply enthusiasts

## Why This Product

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

## Key Features

- • **Hex Head Efficiency:** Standard six-sided hex head design allows for effortless tightening with common tools, saving you time on every job.
- • **Glossy Stainless Finish:** Sleek, polished exterior not only looks professional but also adds an extra layer of rust resistance.
- • **Marine-Grade Durability:** Type 316 stainless steel engineered to withstand harsh saltwater and chemical environments, ensuring long-lasting performance.
- • **Precision Coarse Threading:** Optimized 1/4-20 coarse threads deliver maximum holding power and quick installation for professional-grade projects.
- • **Pack of 25 for Bulk Projects:** Generous quantity ensures you’re always ready for large-scale or multiple repairs without running out.

## Overview

These Type 316 stainless steel hex head bolts (1/4-20 x 1/2", pack of 25) are marine-grade fasteners designed for superior corrosion resistance in saltwater and chemical environments. Featuring coarse threading and a standard hex head, they provide reliable grip and easy installation, making them ideal for professionals demanding durability and performance.

## Description

These bolts are coarse threaded and made of quality "Marine Grade" type 316 stainless steel and are suited for resisting rust & corrosion in most environments. (For chemical, salt water or coastal environments type 316 stainless is a must! Standard 304/18-8 will not hold up!) These are standard six sided external hex heads and depending on length can be fully or partially threaded. Length is measured from underneath the head.

## Features

- Superior Quality Type 316 Stainless Steel Hex Head Bolts To Resist Rust & Corrosion

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01NBJT5OR |
| Best Sellers Rank | #45,026 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #169 in Hex Bolts |
| Brand | Marine Bolt Supply |
| Compatible Groove Diameter | 0.25 Inches |
| Customer Reviews | 4.7 4.7 out of 5 stars (126) |
| Drive System | External Hex |
| Exterior Finish | Stainless Steel |
| Fastener Size | 1/4-20 x 1/2" |
| Fastener Type | Hexagon Bolt |
| Finish Types | Glossy |
| Grade Rating | Marine Grade |
| Head Type | Hex |
| Item Diameter | 0.25 Inches |
| Item Hardness | marine grade |
| Manufacturer | CMC Industrial Supply |
| Manufacturer Grade | Grade 316 |
| Material Type | Type 316 Stainless Steel |
| Number of Pieces | 25 |
| Part Number | 6-FHC |
| Screw Head Style | Hex |
| Screw Point Style | Hex |
| Size Name | 1/4-20 x 1/2" |
| Thread Class | 1B |
| Thread Coverage | Partially Threaded |
| Thread Size | 1/4"-20 |
| Thread Style | Coarse |
| Thread Type | Coarse Threaded |
| UPC | 634385957132 |
| Unit Count | 25 Count |

## Product Details

- **Exterior Finish:** Stainless Steel
- **Head Style:** Hex
- **Manufacturer Grade:** Grade 316
- **Material:** Type 316 Stainless Steel
- **Thread Size:** 1/4"-20

## Images

![Type 316 Stainless Steel Hex Head Bolts - Size 1/4-20 x 1/2" (pack of 25pcs) Marine Bolt Supply - Image 1](https://m.media-amazon.com/images/I/61c2nwL8a-L.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.co.za/products/43899977-type-316-stainless-steel-hex-head-bolts-size-1-4](https://www.desertcart.co.za/products/43899977-type-316-stainless-steel-hex-head-bolts-size-1-4)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-07-21*