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18-8 Stainless Steel Phillips Flat Head Screws for Sheet Metal
18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. They're beveled under the head for use in countersunk holes. Screws penetrate 0.025" and thinner sheet metal. Length is measured from the top of the head.
Undercut screws allow for more threading.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Flat Head Profile | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
No. 0  | |||||||||
| 1/8" | Undercut | 0.112" | 0.025" | No. 0 | No. 55 | 48 | 50 | 000000000 | 00000 |
| 3/16" | Undercut | 0.112" | 0.025" | No. 0 | No. 55 | 48 | 50 | 000000000 | 0000 |
No. 1 | |||||||||
| 1/8" | Undercut | 0.137" | 0.031" | No. 0 | No. 52 | 42 | 50 | 000000000 | 0000 |
| 3/16" | Undercut | 0.137" | 0.031" | No. 0 | No. 52 | 42 | 50 | 000000000 | 0000 |
No. 2 | |||||||||
| 1/8" | Undercut | 0.162" | 0.036" | No. 1 | No. 48 | 32 | 50 | 000000000 | 0000 |
| 3/16" | Undercut | 0.162" | 0.036" | No. 1 | No. 48 | 32 | 50 | 000000000 | 0000 |
No. 4 | |||||||||
| 1/4" | Undercut | 0.212" | 0.047" | No. 1 | No. 44 | 24 | 100 | 000000000 | 0000 |
No. 6 | |||||||||
| 1/4" | Undercut | 0.262" | 0.059" | No. 2 | No. 32 | 20 | 100 | 000000000 | 0000 |
| 3/8" | Undercut | 0.262" | 0.058" | No. 2 | No. 32 | 18 | 100 | 000000000 | 0000 |
| 1/2" | Undercut | 0.262" | 0.058" | No. 2 | No. 32 | 18 | 100 | 000000000 | 0000 |
| 5/8" | Undercut | 0.262" | 0.058" | No. 2 | No. 32 | 18 | 100 | 000000000 | 0000 |
| 3/4" | Undercut | 0.262" | 0.058" | No. 2 | No. 32 | 18 | 100 | 000000000 | 0000 |
No. 8 | |||||||||
| 3/8" | Undercut | 0.312" | 0.07" | No. 2 | No. 29 | 18 | 100 | 000000000 | 00000 |
| 1/2" | Undercut | 0.312" | 0.07" | No. 2 | No. 29 | 15 | 100 | 000000000 | 0000 |
| 5/8" | Undercut | 0.312" | 0.07" | No. 2 | No. 29 | 15 | 100 | 000000000 | 00000 |
| 3/4" | Undercut | 0.312" | 0.07" | No. 2 | No. 29 | 15 | 100 | 000000000 | 00000 |
| 1" | Undercut | 0.312" | 0.07" | No. 2 | No. 29 | 15 | 100 | 000000000 | 00000 |
No. 10 | |||||||||
| 3/8" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 16 | 100 | 000000000 | 0000 |
| 1/2" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 12 | 100 | 000000000 | 0000 |
| 5/8" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 12 | 100 | 000000000 | 00000 |
| 3/4" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 12 | 100 | 000000000 | 00000 |
| 1" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 12 | 50 | 000000000 | 00000 |
No. 12 | |||||||||
| 1/2" | Undercut | 0.412" | 0.092" | No. 3 | 3/16" | 11 | 100 | 000000000 | 00000 |
| 5/8" | Undercut | 0.412" | 0.092" | No. 3 | 3/16" | 11 | 100 | 000000000 | 00000 |
| 3/4" | Undercut | 0.412" | 0.092" | No. 3 | 3/16" | 11 | 50 | 000000000 | 0000 |
No. 14 | |||||||||
| 1/2" | Undercut | 0.462" | 0.103" | No. 3 | 5.5 mm | 14 | 50 | 000000000 | 0000 |
| 5/8" | Undercut | 0.462" | 0.103" | No. 3 | 5.5 mm | 10 | 50 | 000000000 | 0000 |
| 3/4" | Undercut | 0.462" | 0.103" | No. 3 | 5.5 mm | 10 | 50 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel
Phillips Flat Head Screws for Sheet Metal
More corrosion resistant than 18-8 stainless steel screws, these have excellent resistance to chemicals and salt water and may be mildly magnetic. They're beveled under the head for use in countersunk holes. Screws penetrate 0.025" and thinner sheet metal. Length is measured from the top of the head.
Undercut screws allow for more threading.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Flat Head Profile | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||||
No. 4 | |||||||||
| 1/4" | Undercut | 0.212" | 0.047" | No. 1 | No. 44 | 24 | 100 | 000000000 | 00000 |
| 3/8" | Undercut | 0.212" | 0.047" | No. 1 | No. 44 | 24 | 100 | 000000000 | 0000 |
No. 6 | |||||||||
| 1/4" | Undercut | 0.262" | 0.059" | No. 2 | No. 32 | 18 | 100 | 000000000 | 0000 |
| 3/8" | Undercut | 0.262" | 0.059" | No. 2 | No. 32 | 18 | 100 | 000000000 | 0000 |
No. 8 | |||||||||
| 3/8" | Undercut | 0.312" | 0.07" | No. 2 | No. 29 | 15 | 100 | 000000000 | 0000 |
No. 10 | |||||||||
| 1/2" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 12 | 50 | 000000000 | 0000 |
| 5/8" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 12 | 50 | 000000000 | 0000 |
Steel Phillips Flat Head Screws for Sheet Metal
These steel screws are available with corrosion-resistant finishes. They're beveled under the head for use in countersunk holes. Screws penetrate 0.025" and thinner sheet metal. Length is measured from the top of the head.
Undercut screws allow for more threading.
Zinc-plated steel screws resist corrosion in wet environments.
Black-oxide steel screws are mildly corrosion resistant in dry environments. For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Flat Head Profile | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
No. 4 | |||||||||
| 1/4" | Undercut | 0.212" | 0.047" | No. 1 | No. 44 | 24 | 100 | 000000000 | 00000 |
No. 6 | |||||||||
| 1/4" | Undercut | 0.262" | 0.059" | No. 2 | No. 32 | 18 | 100 | 000000000 | 00000 |
No. 8 | |||||||||
| 3/8" | Undercut | 0.312" | 0.07" | No. 2 | No. 29 | 15 | 100 | 000000000 | 0000 |
No. 10 | |||||||||
| 3/8" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 12 | 100 | 000000000 | 0000 |
| 1/2" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 12 | 100 | 000000000 | 0000 |
No. 12 | |||||||||
| 1/2" | Undercut | 0.412" | 0.092" | No. 3 | 3/16" | 11 | 100 | 000000000 | 0000 |
No. 14 | |||||||||
| 1/2" | Undercut | 0.462" | 0.103" | No. 3 | 5.5 mm | 10 | 25 | 000000000 | 0000 |
| 5/8" | Undercut | 0.462" | 0.103" | No. 3 | 5.5 mm | 10 | 100 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Oval Head Screws for Sheet Metal
More corrosion resistant than 18-8 stainless steel screws, these have excellent resistance to chemicals and salt water and may be mildly magnetic. A decorative rounded top provides a finished appearance. These screws are beveled under the head for use in countersunk holes. They penetrate 0.025" and thinner sheet metal. Length is measured from the edge of the head.
Undercut screws allow for more threading.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel Oval Head Screws for Sheet Metal
18-8 stainless steel screws have good chemical resistance may be mildly magnetic. A decorative rounded top provides a finished appearance. These screws are beveled under the head for use in countersunk holes. They penetrate 0.025" and thinner sheet metal. Length is measured from the edge of the head.
Undercut screws allow for more threading.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Oval Head Profile | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
No. 8 | |||||||||
| 3/8" | Undercut | 0.312" | 0.123" | No. 2 | No. 29 | 15 | 100 | 000000000 | 00000 |
No. 10 | |||||||||
| 3/8" | Undercut | 0.362" | 0.142" | No. 2 | No. 21 | 12 | 100 | 000000000 | 0000 |
| 1/2" | Undercut | 0.362" | 0.142" | No. 2 | No. 21 | 12 | 100 | 000000000 | 0000 |
| 5/8" | Undercut | 0.362" | 0.142" | No. 2 | No. 21 | 12 | 100 | 000000000 | 0000 |
No. 12 | |||||||||
| 1/2" | Undercut | 0.412" | 0.161" | No. 3 | 3/16" | 11 | 100 | 000000000 | 00000 |
Steel Oval Head Screws for Sheet Metal
These steel screws have a black-oxide finish to resist corrosion in dry environments. A decorative rounded top provides a finished appearance. They are beveled under the head for use in countersunk holes. Screws penetrate 0.025" and thinner sheet metal. Length is measured from the edge of the head.
Undercut screws allow for more threading.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Flat Head Blunt Screws for Sheet Metal
Made from 18-8 stainless steel, these screws are chemical resistant and may be mildly magnetic. They're beveled under the head for use in countersunk holes. Often referred to as Type B thread-forming screws, they require a drilled hole and are typically used in 0.050"-0.200" material. Length is measured from the top of the head.
Undercut screws allow for more threading.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Flat Head Profile | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
No. 4 | |||||||||
| 1/4" | Undercut | 0.212" | 0.047" | No. 1 | No. 44 | 24 | 100 | 000000000 | 00000 |
No. 8 | |||||||||
| 3/8" | Undercut | 0.312" | 0.07" | No. 2 | No. 29 | 18 | 100 | 000000000 | 00000 |
No. 10 | |||||||||
| 3/8" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 16 | 100 | 000000000 | 00000 |
| 1/2" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 16 | 100 | 000000000 | 00000 |
Steel Flat Head Blunt Screws for Sheet Metal
These steel screws are zinc plated to resist corrosion in wet environments. All are beveled under the head for use in countersunk holes. Often referred to as Type B thread-forming screws, they require a drilled hole and are typically used in 0.050"-0.200" material. Length is measured from the top of the head.
Undercut screws allow for more threading.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Flat Head Profile | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||
No. 4 | |||||||||
| 1/4" | Undercut | 0.212" | 0.047" | No. 1 | No. 44 | 24 | 100 | 000000000 | 000000 |
No. 8 | |||||||||
| 3/8" | Undercut | 0.312" | 0.07" | No. 2 | No. 29 | 18 | 100 | 000000000 | 00000 |
No. 10 | |||||||||
| 3/8" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 16 | 100 | 000000000 | 00000 |
| 1/2" | Undercut | 0.362" | 0.081" | No. 2 | No. 21 | 16 | 100 | 000000000 | 00000 |
Stainless Steel Flat Head Drilling Screws for Metal
Made from stainless steel, these screws are more corrosion resistant than steel, and almost as strong. All are beveled under the head for use in countersunk holes. They save you time and effort by drilling their own holes and fastening in a single operation. Length is measured from the top of the head.
410 stainless steel screws are stronger and more wear resistant than 18-8 stainless steel. They are also mildly chemical resistant. Not for use with aluminum, you can use them to drill through steel, stainless steel, and sheet metal.
For technical drawings and 3-D models, click on a part number.
Drill Tip | Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Flat Head Profile | Type | Lg. | Max. Drilling Thick. | Dia. | Ht. | Drive Size | Approximate Threads per Inch | For Use In | Pkg. Qty. | Pkg. | |
410 Stainless Steel | ||||||||||||
1/4" | ||||||||||||
| 3/4" | Undercut | No. 3 | 5/16" | 0.21" | 0.477" | 0.107" | No. 3 | 14 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
Steel Phillips Flat Head Thread-Cutting Screws for Metal
These steel screws cut threads in drilled holes as they’re turned, so they require less driving torque and cause less stress on your material than thread forming screws. They're beveled under the head for use in countersunk holes. Length is measured from the top of the head.
Screws meet ASME B18.6.3 dimensional standards. They also meet SAE J933 for material quality.
Zinc-plated steel screws resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Flat Head Profile | Dia. | Ht. | Drive Size | Drill Bit Size | Tapping Screw Type | For Use In | Pkg. Qty. | Specifications Met | Pkg. | |
Zinc-Plated Steel | |||||||||||
2-56 | |||||||||||
| 1/8" | Undercut | 0.162" | 0.036" | No. 1 | No. 49 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 000000 |
| 3/16" | Undercut | 0.162" | 0.036" | No. 1 | No. 49 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
4-40 | |||||||||||
| 1/4" | Undercut | 0.212" | 0.047" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/16" | Undercut | 0.212" | 0.047" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
6-32 | |||||||||||
| 1/4" | Undercut | 0.262" | 0.059" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
8-32 | |||||||||||
| 3/8" | Undercut | 0.312" | 0.07" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
10-24 | |||||||||||
| 1/2" | Undercut | 0.362" | 0.081" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
10-32 | |||||||||||
| 1/2" | Undercut | 0.362" | 0.081" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
Stainless Steel Phillips Flat Head Thread-Cutting Screws for Metal
Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant. They're beveled under the head for use in countersunk holes. Screws cut threads in drilled holes as they’re turned, so they require less driving torque and cause less stress on your material than thread forming screws. Not for use with aluminum. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Flat Head Profile | Dia. | Ht. | Drive Size | Drill Bit Size | Tapping Screw Type | For Use In | Pkg. Qty. | Pkg. | |
410 Stainless Steel | ||||||||||
8-32 | ||||||||||
| 3/8" | Undercut | 0.312" | 0.07" | No. 2 | No. 26 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
10-24 | ||||||||||
| 1/2" | Undercut | 0.362" | 0.081" | No. 2 | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
10-32 | ||||||||||
| 1/2" | Undercut | 0.362" | 0.081" | No. 2 | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
Hinge Screws
Commonly used with door hinge hardware, these screws cut threads in soft material such as aluminum and brass. They're beveled under the head for use in countersunk holes. They are undercut to allow more threading. Screws cut threads in drilled holes as they’re turned, so they require less driving torque and cause less stress on your material than thread forming screws. Length is measured from the top of the head.
Zinc-plated steel screws resist corrosion in wet environments.
Brass, bronze, and chrome-plated steel screws have a bright and attractive finish. They're corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | Thread Size | Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Tapping Screw Type | For Use In | Pkg. Qty. | Pkg. | |
| Brass-Plated Steel | 12-24 | 1/2" | 0.412" | 0.092" | No. 3 | No. 8 | F | Aluminum, Brass, Sheet Metal | 10 | 000000000 | 00000 |
| Bronze-Plated Steel | 12-24 | 1/2" | 0.412" | 0.092" | No. 3 | No. 8 | F | Aluminum, Brass, Sheet Metal | 25 | 000000000 | 00000 |
| Chrome-Plated Steel | 12-24 | 1/2" | 0.412" | 0.092" | No. 3 | No. 8 | F | Aluminum, Brass, Sheet Metal | 25 | 000000000 | 00000 |
| Zinc-Plated Steel | 12-24 | 1/2" | 0.412" | 0.092" | No. 3 | No. 8 | F | Aluminum, Brass, Sheet Metal | 25 | 000000000 | 0000 |
Stainless Steel Phillips Drilling Screws for Joining Wood to Metal
18-8 stainless steel screws have good chemical resistance and are a good choice for ACQ-treated (arsenic-free) lumber. They speed installation by drilling, tapping, and fastening wood and metal in a single operation. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Drill Point Size | Drill Tip Lg. | Dia. | Ht. | Drive Size | Thread Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Galvanic Barrier Coated 18-8 Stainless Steel | ||||||||||||
No. 12 | ||||||||||||
| 1" | No. 2 | 19/64" | 0.415" | 0.09" | No. 3 | __ | 14 | Fully Threaded | __ | 10 | 000000000 | 00000 |
| 1 1/2" | No. 2 | 19/64" | 0.415" | 0.09" | No. 3 | __ | 14 | Fully Threaded | __ | 10 | 000000000 | 00000 |
1/4" | ||||||||||||
| 3" | No. 3 | 5/16" | 0.48" | 0.1" | No. 3 | 1/4"-20 | __ | Partially Threaded | 1 1/2" | 5 | 000000000 | 00000 |
| 4" | No. 3 | 5/16" | 0.48" | 0.1" | No. 3 | 1/4"-20 | __ | Partially Threaded | 1 1/2" | 5 | 000000000 | 00000 |
Blunt Screws for Wood
Often used for drawer slides and cabinet hardware, these screws—also known as Euro and Type B screws—create a strong hold in small, shallow holes in wood. They have a blunt tip that distributes strength throughout the entire length of the thread. They also form deep threads in materials such as particleboard, medium-density fiberboard, and hardwood. All of these screws are beveled under the head for use in countersunk holes. They require a drilled hole.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Length | Diameter | Height | Drive Size | Approximate Threads per Inch | Threading | Tapping Screw Type | Pkg. Qty. | Pkg. | |
Steel | |||||||||
1/4" | |||||||||
| 3/8" | 0.295" | 3/32" | No. 2 | 11 | Fully Threaded | B | 50 | 000000000 | 00000 |
| 7/16" | 0.295" | 3/32" | No. 2 | 11 | Fully Threaded | B | 50 | 000000000 | 0000 |
| 1/2" | 0.295" | 3/32" | No. 2 | 11 | Fully Threaded | B | 50 | 000000000 | 0000 |
| 9/16" | 0.295" | 3/32" | No. 2 | 11 | Fully Threaded | B | 50 | 000000000 | 0000 |
| 13/16" | 0.295" | 3/32" | No. 2 | 11 | Fully Threaded | B | 50 | 000000000 | 00000 |