Description:Countersunk head bolt pattern within
Material: Carbon
size:M6-M56 1/4-2-1/8
Grade:4.8-12.9 Gr2-Gr8
Finish: Zinc Plated
Grade:4.8-12.9 Gr2-Gr8
Finish: Zinc Plated
Standard:non-standard
Fang neck in bolt mounting does not rotate. Used in the cart or hand car, because is wood, so use square, does not rotate, convenient tightened.