JX3206 TWO STEP NON STANDARD BOLTS
A non-standard customized cup head bolt is a bolt with unique specifications designed and manufactured according to specific customer requirements. Unlike standard bolts that follow national or industry standards in terms of head shape, thread specification, and length, non-standard cup head bolts can be customized in aspects such as head size (e.g., diameter and height of the cup head), thread length, thread precision, and material.