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DFARS Specialty Metals
Steel Socket Head Screws
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Fully Threaded |
 |
Partially Threaded |
Made of alloy steel, these screws are the standard for high-strength fastening. Use them in high-load applications such as dies, presses, and heavy equipment. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.
Length is measured from under the head.
Black-Oxide Alloy Steel—Best for dry environments since moisture will cause these screws to rust. They have a dark, matte appearance.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Threading | Thread Spacing | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
Black-Oxide Alloy Steel | ||||||||||
3-56 | ||||||||||
| 1/8" | 0.161" | 0.099" | Fully Threaded | Fine | 170,000 | 10 | 90044A244 | 000000 | ||
| 3/16" | 0.161" | 0.099" | Fully Threaded | Fine | 170,000 | 5 | 90044A245 | 0000 | ||
| 1/4" | 0.161" | 0.099" | Fully Threaded | Fine | 170,000 | 5 | 90044A246 | 0000 | ||
| 5/16" | 0.161" | 0.099" | Fully Threaded | Fine | 170,000 | 5 | 90044A247 | 0000 | ||
| 3/8" | 0.161" | 0.099" | Fully Threaded | Fine | 170,000 | 5 | 90044A248 | 0000 | ||
| 1/2" | 0.161" | 0.099" | Fully Threaded | Fine | 170,000 | 5 | 90044A249 | 0000 | ||
| 3/4" | 0.161" | 0.099" | Fully Threaded | Fine | 170,000 | 5 | 90044A250 | 00000 | ||
| 1" | 0.161" | 0.099" | Partially Threaded | Fine | 170,000 | 5 | 90044A251 | 00000 | ||
Stainless Steel Socket Head Screws
 |  |
Fully Threaded | Partially Threaded |
These screws won't rust or corrode when exposed to moisture and chemicals. Their deep, six-point socket keeps hex keys from slipping out and damaging the drive.
Length is measured from under the head.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel screws can.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Threading | Thread Spacing | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | ||||||||||
3-56 | ||||||||||
| 1/8" | 0.161" | 0.099" | Fully Threaded | Fine | 70,000 | 100 | 92196A163 | 00000 | ||
| 3/16" | 0.161" | 0.099" | Fully Threaded | Fine | 70,000 | 100 | 92196A182 | 0000 | ||
| 1/4" | 0.161" | 0.099" | Fully Threaded | Fine | 70,000 | 25 | 92196A501 | 0000 | ||
| 5/16" | 0.161" | 0.099" | Fully Threaded | Fine | 70,000 | 50 | 92196A183 | 00000 | ||
| 3/8" | 0.161" | 0.099" | Fully Threaded | Fine | 70,000 | 25 | 92196A505 | 00000 | ||
| 1/2" | 0.161" | 0.099" | Fully Threaded | Fine | 70,000 | 50 | 92196A184 | 00000 | ||
| 5/8" | 0.161" | 0.099" | Fully Threaded | Fine | 70,000 | 50 | 92196A185 | 00000 | ||
| 3/4" | 0.161" | 0.099" | Fully Threaded | Fine | 70,000 | 50 | 92196A186 | 00000 | ||
| 1" | 0.161" | 0.099" | Partially Threaded | Fine | 70,000 | 100 | 90696A166 | 0000 | ||
Steel Hex-Drive Flat Head Screws
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Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Countersink Angle | Flat Head Profile | Dia. | Ht. | Threading | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
Black-Oxide Alloy Steel | |||||||||||
3-56 | |||||||||||
| 1/4" | 82° | Standard | 0.226" | 0.073" | Fully Threaded | 130,000 | 10 | 91253A097 | 00000 | ||
| 3/8" | 82° | Standard | 0.226" | 0.073" | Fully Threaded | 130,000 | 10 | 91253A098 | 0000 | ||
| 1/2" | 82° | Standard | 0.226" | 0.073" | Fully Threaded | 130,000 | 10 | 91253A099 | 0000 | ||
Stainless Steel Button Head Hex-Drive Screws
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These button head screws won't corrode from moisture and chemicals, but they aren't as strong as alloy steel screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.
Length is measured from under the head.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.
Steel Button Head Hex-Drive Screws
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Made of alloy steel, these screws have nearly twice the tensile strength of other steel screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.
Length is measured from under the head.
Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Threading | Tensile Strength, psi | Specs. Met | Pkg. Qty. | Pkg. | |||
Black-Oxide Alloy Steel | ||||||||||
3-56 | ||||||||||
| 1/4" | 0.188" | 0.052" | Fully Threaded | 120,000 | ASME B18.3, ASTM F835 | 10 | 91255A099 | 00000 | ||
| 3/8" | 0.188" | 0.052" | Fully Threaded | 120,000 | ASME B18.3, ASTM F835 | 10 | 91255A101 | 00000 | ||
| 1/2" | 0.188" | 0.052" | Fully Threaded | 120,000 | ASME B18.3, ASTM F835 | 10 | 91255A102 | 0000 | ||
Brass Button Head Hex-Drive Screws
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These button head screws have a shiny look and won't rust in damp environments. Made of brass, they're also conductive and nonmagnetic, making them useful for electrical applications. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.
Length is measured from under the head.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
