National Hardware N168-336 294BC Hinge Straps in Zinc, 16" To be used as a replacement piece for National's #29 or #229 hinge Mounting bolt NOT included For new installations: use with National's #291 or #293 hooks Strap punched for 3/8" bolts Tested and verified to withstand extreme weather conditions Manufactured from hot-rolled steel Strap punched for 5/16 inch (6 or 8 inch sizes) or 3/8 inch ((10, 12, 14, 16, 18, 20 and 24 inch sizes) bolts Mounting bolts NOT included Lifespan Limited Lifetime Warranty As a replacement part: use with National's #290 or #292 hinges