Type of Head. flat,oval,truss,PF.round ,button,pan(JIS,ANSI),fillister,square. Surface Treatment. Zinc,nickel,gold brass,black/black oxide etc. Shank Diameter. M1.2-M30 customized by your need. Overall Length. 6-120MM. Salt Spray Test. 24hr-1000hr. Testing equipment. Automatic Optic Inspector,Projecting Apparatus,Salt Spray Test,Hardness/Tensile Machine. Certification
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