HoloKrome Socket Low Head Cap Screws in Black Oxide Class 12+ High Tensile Steel
Holo-Krome branded socket cap low screws, in alloy steel with a tensile strength of 10.9, and finished with black oxide. Manufactured in the USA, these
are high precision screws, similar to Unbrako, with precision 3A threads for greater clamping force. The fillet between the head and
the body is closely controlled for maximum fatigue strength. Similar to DIN 7984, socket cap low head screws are designed to be
used in applications where the head height needs to limited. The reduced head height and therefore more shallow socket depth, means
that the preload can not be as high as for standard socket head cap screw (see data sheet).