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About Flat Head Screws
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Mil. Spec. Steel Phillips Flat Head Screws
Standard Profile
Choose these screws for their adherence to strict military standards for material and construction. They're cadmium plated to resist corrosion in wet environments. These screws are angled under the head to sit flush within countersunk holes. Length is measured from the top of the head. Screws with a 100° countersink angle distribute pressure over a wide area to prevent crushing soft materials.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Flat Head Profile | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi  | Specifications Met | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel—100° Countersink Angle | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
4-40 | ||||||||||
| 1/4" | Fully Threaded | Standard | 0.225" | 0.049" | No. 1 | 60,000 | MS24693-S2, NASM24693 | 100 | 000000000 | 000000 |