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DFARS Specialty Metals
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 | ||||||||||
2-64 | ||||||||||
| 1/4" | 0.164" | 0.046" | Fully Threaded | 120,000 | ASME B18.3, ASTM F835 | 5 | 91255A082 | 000000 | ||
| 3/8" | 0.164" | 0.046" | Fully Threaded | 120,000 | ASME B18.3, ASTM F835 | 5 | 91255A083 | 00000 | ||
| 1/2" | 0.164" | 0.046" | Fully Threaded | 120,000 | ASME B18.3, ASTM F835 | 5 | 91255A084 | 00000 | ||
Stainless Steel Fillister Head Slotted Screws
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The most corrosion-resistant fillister head slotted screws we offer. With a deeper drive than others, fillister heads reduce the likelihood that basic slotted drivers slip as you hand-tighten them. Since they also have a narrow diameter, they fit into tight spaces, such as holes tucked away inside machinery.
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.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Threading | Tensile Strength, psi | Specs. Met | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | ||||||||||
2-64 | ||||||||||
| 1/2" | 0.14" | 0.083" | Fully Threaded | 70,000 | ASME B18.6.3 | 50 | 91794A218 | 000000 | ||
