stainless self drilling passivated tek screw

Stainless Hex Washer Head Screws

Self-Drilling Screws
Passivated

Hex Washer Head Screws

Stainless steel self-drilling screws are available in two different types of stainless. For simplicity’s sake, let’s call them ‘magnetic’ stainless and ‘non-magnetic’ stainless. 410 stainless (magnetic) and 18-8,or 300 series, stainless (non-magnetic). All Points Fasteners can also provide ‘bi-metal’ self-drilling screws. These are Tek® screws that have stainless bodies with drill bit points made of carbon steel so that they can do the job of drilling through sheets of stainless steel.

What are Stainless Self-Drilling Screws Used For?

Contractors often use hex washer head screws in metal-to-metal and wood-to-metal applications due to their durability and security. You can use them for fastening sheet metal and light steel, as well as for light metal framing. Use them to tightly secure gutter systems, or utilize them to install insulation in garage doors or other areas. Specifically, they use stainless self-drilling screws in environments where the projects are close to moisture.

These screws are also useful in metal roofing projects for sheds, warehouses and other industrial buildings. They’re also a favorite in the construction industry because of how quickly you can work with them.

Beyond the screw’s self-puncturing tips and double lead threads, the head features a design that minimizes slippage — which means that you can keep the socket on the screw without having to continually reset your grip. The built-in washer underneath the head also helps to distribute surface pressure, increasing structural integrity.

Stainless Steel Hex Washer Head Screws

Self-drilling stainless hex head screws are popular fasteners for construction projects because they have drill bit tips and self-tapping threads on the shank, allowing you to quickly and easily pierce and fasten together various types of material in one step without needing a pre-drilled pilot hole. Non-self-drilling fasteners require you to pre-drill pilot holes. If you use self-drilling screws for a compatible project, you can usually complete tasks significantly faster.

Hex heads on screws are a distinctive feature because of their hexagonal head shapes. Because these fasteners are made of solid stainless steel, they provide a firm, reliable hold that resists corrosion and yields exceptional longevity. These sturdy fasteners also have the best protection against corrosion and rust, which allows them to handle wetter outdoor environments. Many hex screws are threaded all the way up the shank right to the head, making them ideal for a variety of jobs requiring a high level of fastening power.

Common Applications of Stainless Hex Head Screws

Stainless hex screws work well for many installations since they can provide long-lasting hold even in adverse conditions. These unique fasteners are vital in demanding industries such as:

  • Solar Industry: Installation of mounting solar panels where the stainless steel hex screws with be exposed to the elements and you want to prevent rusting for as long as possible.
  • Metal Roof Industry:  Stainless hex head screws with bonded washers provide the longevity and easy installation or removal.
  • Gutter and Siding: Hex head screws make the job for gutter and siding installers much easier since they work so well with magnetic hex drivers.

These fasteners are popular in these fields because of the versatility they provide. The hexagonal shape allows users to adjust the screw from all angles, making them ideal for working in tight spaces. Whether you use a socket or a wrench, the hex head helps you achieve high levels of torque for excellent grip and a long-lasting installation.

When to Use Stainless Steel Hex Head Screws for Wood

Type 17 points, auger points, are manufactured for use in wood. The auger point allows the displaced wood a way of escape so that your screw starts easier and there is less chance of splitting the wood. These stainless screws also feature a special coating for additional rust resistance. These screws are particularly popular for gutter and metal roof installation.

At All Points Fasteners, we have a large selection of steel hex head screws to fit the depth and width of your builds. Thanks to their stainless steel construction, these fasteners won’t rust or stain the material you decide to use. We also provide you with painted heads to complement the color of your material for a cohesive aesthetic.

Stainless steel screws are an excellent choice when completing construction in harsh environments, as they help to ensure the longevity of your end product.

What Options Do We Carry?

All Points is a premier provider of all kinds of 1/4″, self-piercing hex washer head screws for gutters and siding We offer unpainted and painted versions, including popular colors like red, black and silver to match with your preferred material.

All of our indented, slotted hex washer head screws include needlepoints and twin lead thread designs, though gauges and lengths will vary. Both the painted and unpainted screws come in the following measurements:

#6 x 3/8″
#8 x 1/2″
#8 x 3/4″
#8 x 1″
#8 x 1-1/4″
#8 x 1-1/2″
#10 x 1″
#10 x 1-1/4″
#10 x 1-1/2″
#10 x 2″
#10 x 3″

Smaller sizes are excellent for thin substrates that require a tight hold without breaking their integrity. Longer sizes are often used in gutter installation due to their high withdrawal resistance, which allows them to bear the heavy loads of continued water flow and built-up debris. Sheet metal versions of these screws range into even higher sizes, with gauges going up to #14 and lengths pushing 4″.

Our screws feature a rust-resistance build, which means that they can handle both indoor and outdoor applications with little worry. You’ll have plenty of options with case quantities, depending on the selection. Some cases carry yields as low as 1,500, but they can scale up to 25,000 for large-scale projects and long-term applications.

Frequently Asked Questions

Examples of questions we hear regularly regarding stainless steel screws are:

Do stainless steel screws rust?

Stainless steel screws are more rust-resistant because they contain nickel and chromium, which combine to form a passivation layer. However, harsh environments and demanding applications can lead to corrosion or tarnish.

410 stainless steel will get surface rust over time but will not compromise the screw. Many of our 410 stainless screws have a ceramic coating to protect against surface rust. 18-8 and 300-series stainless steel are more rust-resistant, but we do not recommend driving them into thicker metals because they are much softer than 410 stainless steel.

How are stainless steel screws made?

Manufacturers use iron and carbon alloy steel combined with a precise amount of chromium to make stainless steel. Chromium is critical to the process because it provides the passive oxide layer that prevents rust. Other metals used to make stainless steel include nickel, silicon, manganese and molybdenum.

How do you tell if a screw is stainless steel?

410 stainless steel screws contain markings on the head that indicate the type of material. Manufacturers or distributors often supply charts explaining more specific markings. In addition, stainless steel has a distinct tone of silver or gray with a brushed texture.

Are stainless steel screws strong?

Although stainless steel screws boast excellent durability and strength, each screw differs based on the exact grade of material. At All Points Fasteners, our experts can help you choose the most practical and cost-effective stainless steel screw for your application.

Can you use stainless steel screws on aluminum?

In many cases, stainless steel screws are an excellent fastening choice for aluminum, specifically in dry conditions. Since there is a risk of galvanic corrosion between the metals in moist environments, creating a barrier using paint or a plastic washer can prevent any reaction. At All Points Fasteners, we apply a silver ceramic coating on many of our 410 stainless screws to prevent galvanic corrosion.

Find the Best Hex Washer Head Screws at All Points

Our staff understands the nuances of every fastener we carry, including our hex washer head screws. Browse our online inventory today.

We ship fasteners throughout the United States. Some of the top states we ship products to include: California, Illinois, Florida, Washington, South Dakota, Utah, and Texas.

stainless self drilling hex washer head tek passivated

INDENTED HEX WASHER HEAD UNSLOTTED

  • FULLY THREADED
  • SELF DRILLING POINT
  • 410 STAINLESS STEEL
  • #3 SELF DRILLING POINT
  • PASSIVATED
PART # SIZE HEAD SIZE DRILL POINT LBS/M CASE QUANTITY
SD-1040002 #6 x 3/8″ 1/4″ #1
SD-1040004 #6 x 1/2″ 1/4″ #2 2.6 20,000
SD-1040006 #6 x 5/8″ 1/4″ #2
SD-1040008 #6 x 3/4″ 1/4″ #2 3.2 16,000
SD-1040010 #6 x 1″ 1/4″ #2 3.8 10,000
SD-1040012 #6 x 1-1/4″ 1/4″ #2 3.8 10,000
SD-1040014 #6 x 1-1/2″ 1/4″ #2 3.1 20,000
SD-1040016 #8 x 3/8″ 1/4″ #1
SD-1040018 #8 x 1/2″ 1/4″ #2 3.1 20,000
SD-1040020 #8 x 5/8″ 1/4″ #2 3.8 16,000
SD-1040022 #8 x 3/4″ 1/4″ #2 4.1 14,000
SD-1040024 #8 x 1″ 1/4″ #2 5.5 10,000
SD-1040026 #8 x 1-1/4″ 1/4″ #2 4.6 7,000
SD-1040028 #8 x 1-1/2″ 1/4″ #2 6.8 5,000
SD-1040030 #8 x 1-3/4″ 1/4″ #2
SD-1040032 #8 x 2″ 1/4″ #2 8.8 4,000
SD-1040034 #10 x 1/2″ 5/16″ #2 4.6 10,000
SD-1040036 #10 x 5/8″ 5/16″ #3 5 10,000
SD-1040038 #10 x 3/4″ 5/16″ #3 6.3 10,000
SD-1040040 #10 x 1″ 5/16″ #3 6.9 8,000
SD-1040042 #10 x 1-1/4″ 5/16″ #3 8 6,000
SD-1040044 #10 x 1-1/2″ 5/16″ #3 9.5 4,000
SD-1040046 #10 x 1-3/4″ 5/16″ #3
SD-1040048 #10 x 2″ 5/16″ #3 12 3,000
SD-1040050 #10 x 2-1/2″ 5/16″ #3 15 2,000
SD-1040052 #10 x 3″ 5/16″ #3 17.3 1,500
SD-1040054 #10 x 3-1/2″ 5/16″ #3
SD-1040056 #10 x 4″ 5/16″ #3
SD-1040058 #12 x 3/4″ 5/16″ #3 8 8,000
SD-1040060 1#2 x 1″ 5/16″ #3 9.3 6,000
SD-1040062 #12 x 1-1/4″ 5/16″ #3 10.8 4,000
SD-1040064 #12 x 1-1/2″ 5/16″ #3 12.3 3,000
SD-1040066 #12 x 1-3/4″ 5/16″ #3
SD-1040068 #12 x 2″ 5/16″ #3 16 2,000
SD-1040070 #12 x 2-1/2″ 5/16″ #3 19.3 1,500
SD-1040072 #12 x 3″ 5/16″ #3 27.5 1,200
SD-1040074 #12 x 3-1/2″ 5/16″ #3
SD-1040076 #12 x 4″ 5/16″ #3 30 1,000
SD-1040078 #12 x 5″ 5/16″ #3
SD-1040080 #12 x 6″ 5/16″ #3
SD-1040082 #14 x 3/4″ 3/8″ #3 11.4 5,000
SD-1040084 #14 x 7/8″ 5/16″ #1 12 2,500
SD-1040086 #14 x 1″ 3/8″ #3 13.8 4,000
SD-1040088 #14 x 1-1/4″ 3/8″ #3 16.3 3,000
SD-1040090 #14 x 1-1/2″ 3/8″ #3 18 2,500
SD-1040092 #14 x 1-3/4″ 3/8″ #3
SD-1040094 #14 x 2″ 3/8″ #3 22 2,000
SD-1040096 #14 x 2-1/2″ 3/8″ #3 27.3 1,500
SD-1040098 #14 x 3″ 3/8″ #3 32.5 1,200
SD-1040100 #14 x 3-1/2″ 3/8″ #3 30 1,000
SD-1040102 #14 x 4″ 3/8″ #3 44 500
SD-1040104 #14 x 4-1/2″ 3/8″ #3 48 500
SD-1040106 #14 x 5″ 3/8″ #3 32 500
SD-1040108 #14 x 6″ 3/8″ #3 62 500

410 Stainless Self-Drilling Fasteners

 

Types of Fasteners

  • Self-drilling #8, #10, and #14 diameters with #2, #3, and #5 points

 

Recommended Usage 

  • Fastener to be used for sheet-to-sheet structural applications.

 

Strength of Fastener

 

#8 #10 #12 #14
Minimum Tensil Strength 1650 lbs. 2050 lbs. 2900 lbs. 4050 lbs.
Minimum Shear Strength  880 lbs. 1400 lbs. 2125 lbs. 2825 lbs.
Minimum Torsional Strength 48 inch lbs. 75 inch lbs. 120 inch lbs. 155 inch lbs.

(*These are conservative Values)

 

Pull Out Tests

To determine the tension required to remove properly drilled screws out of steel member.

Average pull out Values in LBS.

 

Thickness of Steel Hardness of Steel Rockwell #8 #10 #12 #14
20 gague 50 280 300 390 460
18 gauge  60 440 440 583 685
16 gauge 64 590 560 748 890
14 gauge 64 780 780 1001 1220
12 gauge 64 1090 1295 1610
3/16″ gauge 60 2610 3335

(*The test results shown are believed to be reliable. however, variances in testing and actual field conditions may alter the results. there is no expressed or implied warranty on test data.)

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