Value priced security for basic applications. 2-3/4" (70mm) wide stainless steel case. Brass 4-pin tumbler mechanism. 3/8" (10mm) hardened steel shackle. Clearances: Vertical 3/4" (20mm); horizontal 3/4" (20mm). 2 keys included. Newer Version will use M1 key blank. Newer version designated with BQ stamped on reverse side of padlock. Older version uses key blank Model No. K1870BAGDIB.