Use GRK Bit T-30
Unique Caliburn Thread Design
Patented Climatek Coated
Pre-Drill with 3/16-Inch Bit
Case Hardened Steel

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.4 inch
Height : 1.4 inch
Length : 7.5 inch

Item Weight: 1.65 pounds (View shipping rates and policies)
Shipping Weight: 1.15 pounds (View shipping rates and policies)

ASIN : B001TINYWI

Product Description

Drive Style: Star. Self Tapping. Diameter: 1/4 in. Length: 2-1/4 in. Finish: Yellow Zinc. Self Drilling. Head Type: Bugle. Number in Package: 50 pc. Color: Yellow. Material: Steel. Indoor and Outdoor. Size: 1/4 x 2-3/4 inch. Thread Type: Self Tapping. Unit of Measurement: SAE. Zero stripping with six points of contact. Aggressive heavy duty threads lock into concrete and can be removed and reinserted without screw damage. ESR-3251 approved for use in anchoring to concrete. Caliburn XL washer head designed for superior holding power. Climatek coating is AC257 code approved for use in treated lumber.