Wej-It Nail-It DN1422 Drive Anchor， Zamac Alloy， Zinc Plated Finish， Meets GSA FFS-325 Group V Type 2 Class 2 Specifications， 1/4" Diameter， 2-1/2" Length (Pack Of 100)<img src="http://ecx.images-amazon.com/images/I/41ZgC5BQb6L.jpg" noproxy>