4-40 x 7/16 Alloy Steel Button Head Socket Cap Screw is commonly specified when designers need internal-hex access with a broad, finished head profile. The alloy steel construction supports manufacturing equipment where a smooth button head and socket engagement are required.
It is commonly used on precision assemblies and repair work where buyers can match the listed thread and length to drawings or service records. It is also suited to machine covers and service panels when the finished head appearance is useful on exposed equipment. Engineers often choose this style when a standard socket head cap screw would stand taller than the assembly layout allows.
For assemblies specified with 4-40 thread and 7/16 in. length, the reference head diameter is 0.201-0.213 in. and the head height is 0.051-0.059 in. The nominal body diameter and hex-key information below help maintenance and purchasing teams verify fit and tool access.
Reference dimensions may vary slightly by manufacturer.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
