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Specifications Met Specifications Met | Show |
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Specifications Met Specifications Met | Hide |
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Warning: Products have one, but not necessarily all, of the selected characteristics.
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Head Type Head Type |
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![]() | Flat |
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Drive Style Drive Style |
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Flat Head Profile Flat Head Profile |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Hardness Hardness |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Thread Fit Thread Fit |
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Tensile Strength Tensile Strength |
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Threading Threading |
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![]() | Fully Threaded |
About Flat Head Screws
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Mil. Spec. Stainless Steel Phillips Flat Head Screws

Passivated

Undercut Profile
Choose these screws for their adherence to strict military standards for material and construction. They have good chemical resistance and may be mildly magnetic. Screws are angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Screws with an undercut profile have a shallow head for use in thin materials. Passivated stainless steel screws protect against oxidation and corrosion.
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. | |
Passivated 18-8 Stainless Steel—82° Countersink Angle | ||||||||||
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4-40 | ||||||||||
3/16" | Fully Threaded | Undercut | 0.225" | 0.047" | No. 1 | 70,000 | Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, MS51959-12, SAE AMS2700 | 50 | 000000000 | 00000 |