APPROVALS: Complies with Manufactures' Standardization Society (MSS) SP-58 & SP-69 (Type 1). Complies with Federal Specifications A A-1192A (Type 1). Complies with Underwriters' Laboratories (UL) & (cUL) (20161226-E484234), 3/8" & 1/2” UL & cUL approved, 

FINISH: Plain,Zinc Plated, Hot Dip Galvanized,

NOTES: Other materials，finish & lengths are available upon request