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Mil-Spec designation: Aligns with MS35307-312 for military-grade hardware reliability
Finish: Hot-dip galvanized for extended life in harsh conditions
and marine settings
Defense and aerospace hardware assemblies requiring Mil-Spec fasteners
Drive: Phillips drive to ensure consistent torque and alignment
#4-40 X 1" Machine Screws | Pan Head | Phillips Drive | 18/8 Stainless Steel Black Oxide (2000/Pkg.) Wej-It Mil-Spec designation: Aligns with MS35307-312Specs Drive: Phillips Material: 18 8 stainless steel Finish: Black oxide Thread Size: 4 40 Length: 1 inch Head Style: Pan Type: Machine screw Part Number: MS51957 Quantity: 2,000 per package Features 18 8 stainless steel provides corrosion resistance suitable for electronics and machinery environments Black oxide finish offers a smooth, low glare surface for reduced reflections Phillips Pan Head allows flush seating with standard screwdrivers 4 40
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