We-re nuts about bolts. Imperial, Unified & Metric.
2-56 UNC x 1/2 SOCKET BUTTON HEAD HT S/COL
Product Code: HSBNB020050
Socket Button Head screws, also known as Button Head Capscrews or Dome Head Capscrews, are generally manufactured from High Grade Alloy Steel and are also available in Stainless Steel.
from Kerridge Commercial Systems Ltd