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Warning: Products have one, but not necessarily all, of the selected characteristics.
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![]() | Rounded |
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![]() | Fully Threaded |
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About Rounded Head Screws
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Mil. Spec. Stainless Steel Pan Head Phillips Screws

Passivated
Choose these pan head screws for their adherence to strict military standards for material and construction. Made from 18-8 stainless steel, they are chemical resistant and may be mildly magnetic. Length is measured from under the head.
Passivated screws meet Fed. Spec. QQ-P-35 for added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
Lg. | Threading | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Passivated 18-8 Stainless Steel | |||||||||
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4-40 | |||||||||
1 3/8" | Fully Threaded | 0.219" | 0.080" | No. 1 | 80,000 | Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, MS51957-122 | 50 | 000000000 | 000000 |