We-re nuts about bolts. Imperial, Unified & Metric.
5/16 UNC x 3/4 A2 ST/ST SWH08120NTERSUNK
Product Code: SSCNC0310075
Socket Countersunk Screws also known as Countersunk Caps, Countersunk Sockets or Allen Countersunk are generally manufactured from High Grade Alloy Steel and are also available in Stainless Steel in more common thread types.
from Kerridge Commercial Systems Ltd