2.1 & ASTM A307 Gr A. The 6 sided head makes them easy to install using a standard wrench or socket tool.Size: 5/16 inch-18 X 1-1/2 inchOne of the most common and versatile fastenersDesigned for use with a nut or a threaded hole of the same diameter and thread sizeFeatures a 6 sided head and can be fastened using a wrench or socket toolNuts & washers not includedThread Type: Coarse, Thread Class: UNC-2A, Point Style: BluntSpecification(s) Met: ASME B18.
1 in.This quarter-size wall stop is constructed of a cast brass cover and a protruding rubber bumper.Constructed of solid rubber to cushion and stop fast swinging doors Comes off-white in color to blend and/or compliment finished wall surfaces bestDesigned for use to prevent hinged entry doors from impacting adjacent walls, but can be used with other hinged doors where knob hardware may cause damageFeatures an easy to mount designEasy to install with only a few simple toolsFasteners includedA Phillips head screwdriver is required for installationFor further dimensional information, please see the line drawing., Cast Brass, Brushed Chrome, Wall Stop with Convex Bumper This item will not repair holes caused by door knobs, but can prevent them when installed correctly.