GRK PHEFT8318HP Trim SS Handy FIN 8 by 3-1/8-Inch Screws, 100 Screws per Package From the Manufacturer GRK PHEINOX Stainless Steel FIN/Trim Head Screws are an excellent choice for most fine carpentry applications, as well as window extension jambs and more. GRK FIN/Trim Head screws have the smallest screw head available and range in length from 1-1/4-Inch to 5-Inch. Almost all material splitting is prevented because of the Trim Head screw's exceptional small head and the W-cut thread design. Pre-drilling is only necessary if the material's limitations require a pilot hole to be drilled, as in hardwoods like Mahogany and Ipe'. Features PHEINOX Stainless Steel with limited lifetime warranty Use GRK Bit T-10 Self-Tapping W-cut thread design Zip-Tip Finish Trim Head Screw USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.