4-48 x 1/8 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 serves automation systems where reduced snag potential and internal hex drive access are useful.
It is commonly used on robotics and packaging machinery where internal hex drive access supports repeatable assembly work in tight spaces. It is also suited to precision assemblies and repair work when buyers can match the listed thread and length to drawings or service records. Unlike a standard socket head cap screw, the button head emphasizes a lower rounded profile and broader exposed head for applications that benefit from that geometry.
For engineering layouts using 4-48 thread and 1/8 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 keep fit review, tool selection, and replacement ordering tied to verified reference values.
Reference dimensions may vary slightly by manufacturer.
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