INCLUDES: (100) AnchorsFEATURES: Bit Size 1/4" Thread Length 2-7/16" Zinc Plated For Indoor Use Do Not Use In Vibratory Loads Packaged With Zinc Plated Nuts And Washers 1/4" Inch Diameter X 3-1/4" Inch Long Spacing Must Be A Minimum Of 10 Anchor DiametersSPECIFICATIONS: Anchor Diameter: 1/4" Anchor Length: 3-1/4" Anchor Material: Zinc Drill Bit Diameter: 1/4" Thread Length (in.): 2-7/16A Wedge-Type Expansion Anchor Designed For Optimal Performance In Cracked And Uncracked Concrete As Well As Uncracked Masonry. The Strong-Bolt 2 Is Available In Carbon Steel, Type 304 And Type 316 Stainless Steel.