/4" diameter, 20 threads per inch, class 2A thread fit, grade 5 hex head
cap screws identified by 3 radial lines on top of the head
- Head width across flats: 7/16"
- Head height: 5/32"
- Thread length: 3/4" for screws 6" and shorter; over 6" long: 1"
- Minimum tensile strength: 120,000 psi; Rockwell hardness: C25-C34
- ASME B18.2.1 compliant
- Tight tolerances allow a hex cap screw to fit where a hex bolt could be too large
- Grade 5 � heat treated, meets SAE J-429 standards
- Made
from medium strength steel with Zinc plating � good to excellent
corrosion resistance; clear chromate coating seals, protects, and
reinforces against early tarnish and corrosion
- Sold individually; also available in package quantities.