TYPE: ASTM A307
SIZES: 4 x 20 , 5 x 20
TENSILE STRENGTH: Min. 414 MPa
ELONGATION %: Min. 18%
COATING: Black, White Zinc Electroplated
A307/ Grade 2
Flat Head Stovebolt
Fastening wood to metal or metal to metal with wrench leaving a flat surface. Like a bolt or hex head capscrew, it features a straight, untapered shank and a blunt end, but it is usually driven with a screwdriver instead of a wrench. External machine thread runs entire length of shank.