标准
AN/ANSI/AS/ASME/ASTM/DIN/ISO/SAE
Drive Type
External Hex/ External Square/ Hex Socket/ Phillips/ Slotted/ Torx
Sample time
Commonly 2-7 days
Package
Plastic bag/Box + Master Carton or Customized
Testings
Mechanical dimentions, Hardness test, Salt Spray Test
Service
Customized Degin/Logo/Package