Product name
Wing Butterfly Screws Bolts Thumb Butterfly Wing Hand Bolts
Surface treatment
Bright ,Black Oxide,Zinc Plated
Grade
4.8/ 8.8/ 10.9/ 12.9 Ect
Type
Precision Nonstandard Parts(OEM Service)
Head type
Hexagon Flange Head
Feature
High Strength Bolt Nut
Materia
Steel and Stainless steel