# Bolts
# JIS
A hex socket head bolt is a type of fastener with a hexagonal socket head, widely used in many industries.
The partially threaded type refers to a bolt that is threaded only on a portion of the shank starting from the head.
It is available in various material grades, sizes, and surface treatments.
※ Thread length:
When bolt length ≤ 125 mm:
Thread length = (diameter × 2) + 6
When bolt length ≥ 130 mm:
Thread length = (diameter × 2) + 12
When bolt length ≥ 220 mm:
Thread length = (diameter × 2) + 25
Available Materials
Available Surface Treatments
