Flathead screws come in many sizes and materials. To find the best price, you first must know how you will use the flat head fasteners. Flathead wood screws may be made of steel, brass, aluminum or bronze and have zinc or silicone coating. Applications that have sanitation requirements call for stainless flat head screws. High moisture and exterior environments call for higher grade screws, which are more expensive. Prices vary from low-cost steel screws to stainless steel and silicone bronze, the most expensive.

To further determine price, you must know the size, from #4 to #14, with higher numbers being the bigger diameters. You must know the length required, and you need to know the thread type. Replacing screws may require a metric flathead screw, a flathead cap screw or a flathead machine screw, depending on the threads of the nut it has to fit into.

When determining pricing and costs of flathead screws, you will also want to know:

1. The best flathead screw for the material, such as wood, metal or fiberglass, being fastened.

2. If you want to use a slot head or Phillips head flathead screw.

3. The number of flathead fasteners required to do your job.

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Find a flat head screw manufacturer or wholesaler for large purchases

Bulk prices are cheaper than small lots. If you need a large number of fasteners, it may pay to find a flat head screw manufacturer or other flat head screw suppliers that sell wholesale.

I recommend: Grainger lists a multitude of screws in packages of 100 starting at $2, depending on diameter, length, thread type, and head type. Mutual Screw & Supply sells stainless steel screws in lots of 1000 to 5000 with prices in the $65 to $400 depending on diameter and length of screw. Search this site by using flathead screw dimensions and number of screws needed.

Find the perfect flat head screw specialty fastener

You can find screws for specialty applications. Screws for marine use require moisture and corrosion resistance, for example.

I recommend: GreenBoatStuff lists silicone bronze screws applicable to boating uses. They quote prices per screw and run from $.45 to $11 for sizes ranging from .75 inch to 6 inches in length. Fastener-Express handles metric applications with materials such as steel, stainless steel and aluminum. Prices are per 25, 50, or 100 and range from $5 into the $30's depending on size.

Compare prices of flathead screws

Hardware dealers everywhere carry flathead screws, so finding a source is no problem, but pricing will take a little more time. You may be able to buy bulk screws from your local hardware store by the pound. Most flat head screw suppliers quote prices per lots of 25 to 5000.

I recommend: Jamestown Distributors lists flathead screws of many sizes sold in boxes of 100 starting at $12 for the smallest sizes. Bolt Depot has a great site that displays close-ups of all kinds of screws, with prices from a single screw to lots of 1000. Prices range from $.08 for a single #8 screw .5 inches in length to $115 for a lot of 1000 #8 screws 3.5 inches in length, for one example. You will find a huge variety of sizes, lengths, thread types and materials.

When it comes to screws, flathead screws are the most widely used. A flathead screw is the fastener-of-choice for everything from general construction projects to joining small hinges and making furniture.

You’ll find flathead screws on the shelves of every local hardware store, but if you are looking for specialty flathead screws or flat head fasteners, like a metric flathead screw or flathead pickguard screws, you may have to expand your search. Some things to keep in mind when searching for flat head screws or flat head fasteners:

1. Flathead screw dimensions vary in size, length and width. Your particular project dictates which flat head screw is best for the job.

2. Flathead screw comparison guides are available that compare screw heads, threads and sizes for indoor and outdoor use.

3. You can purchase stainless flat head screws, flathead wood screws, a flathead machine screw, a metric flathead screw or industrial flathead screws in small quantities or in bulk.

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Purchase flathead screws made for your particular job

For outdoor projects, use stainless flat head screws that won't rust. A flathead machine screw works best for joining metal and flathead wood screws are best for working with sheetrock.

I recommend: Purchase a flathead machine screw or stainless flat head screws at Nuts and Bolts. If you are in the market for a flathead machine screw or flathead wood screws, Grainger offers a diverse selection in a variety of sizes. Jamestown Distributors is a wholesale building supplier, who also specializes in marine fasteners and other construction materials.

Order flathead screws and flat head fasteners directly from flat head screw suppliers

Just about every type of flathead screw and flat head fasteners can be found online from a flathead machine screw, flathead woods screws and a metric flathead screw to a flathead cap screw, industrial flathead screws and stainless flat head screws.

I recommend: McFeely's is the best source for all types of flathead screws and flat head fasteners. Its product descriptions include size, length, bit size, recess and thread, plating and a picture of that particular flathead screw. It also features a metric conversion chart. Other flat head screw suppliers and manufacturers include Hillco Fasteners and Fastener-Express.

Search out flat head screw suppliers or a flat head screw manufacturer who sells in bulk

Many flat head screw vendors offer their customers better deals if they buy in bulk or larger-than-average quantities.

I recommend: You can buy items, such as a flathead cap screw, at an attractive price if you purchase them by the carton from Aaron's General Store. Prices rise dramatically when you order less than 1,000 items. Buy a single flathead machine screw or a box of 100 or 1,000 at BoltDepot. The more flathead screws you order the lower the price.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Take advantage of toll free customer service telephone numbers provided by flat head screw suppliers or a flat head screw manufacturer. Sales representatives are on hand to help you determine the best flat head screw for your project.

Learning flat head screws key terms can help you determine which type of flat head screw is best suited for any project. Whether you need you purchase screws for a project or are looking to help a customer purchasing screws from your business, gaining knowledge about flathead screws key terms can help you purchase and stock the screws and tools you and your customers need to complete projects right.

A flathead screw is one that has a flat top with a tapered underside. Learning flat head screws key terms will help you gain a better understanding of the various types of flat head screws and the accompanying tools specifically designed for use with flat head screws.

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Countersunk

Countersunk refers to the positioning of the screw in relation to the surface of the material being fastened with the screw. Flat head screws are designed to be countersunk. This means that a flathead screw should be flush with the surface.

I recommend: Learn more about countersunk at K-T Bolt.

Screw drive

Screw drive refers to the various types of tools used to drive in or extract screws. Slotted and Phillips are the most common types of screw drives.

I recommend: Read more about screw drives at Knowledgerush.com.

Engagement

Engagement is a term referring to how far the screw is drilled into the material it is being used to fasten. This measurement is expressed as thread engagement and length of engagement.

I recommend: Find out more about engagement at Bolt Depot.

Masonry screw anchors

Masonry screw anchors are used to fasten flathead screws into concrete and other brick or hollow surfaces. Masonry flathead screw anchors can be easily removed.

I recommend: Learn more about masonry screw anchors at Fastener Mart.

Machine screw

Machine screws are described with a two-digit number. The first number indicates the diameter of the screw while the second digit reflects the screw's number of threads per inch.

I recommend: Find out more about machine screws at Short Run Pro.

Wood screw

Wood screws have fewer threads per pitch than machine screws. Wood screws also usually have an unthreaded shank.

I recommend: Find out more about wood screws at Curious Inventor.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  For best results, flat head screws should be three times as thick as the material you are trying to fasten. When purchasing flat head screws, it's important that you clearly specify the diameter you need for you project.