heavy hex bolts. b7 alloy steel in plain finish. wider hex head provides greater wrenching area for heavy duty industrial work. hex cap screws. most common type of hex bolt. available in grade 2, grade 5, grade 8 & stainless steel. partially threaded in most cases. hex flange & frame bolts. supplied in high strength grade 8 with black phos
a grade 8 bolt is stronger than the more commonly used grade 5. it is made of alloy steel and has six radial lines on the top of the bolt head. grade 8 bolts have a tensile strength of 150,000 pounds per square inch. we recommend using grade 8 nuts, flat washers and high alloy lock washers with any grade 8 bolts / hex cap screws.
our strongest screws, these grade 9 steel screws have a tensile strength of 180, 000 psi about 20 stronger than our high strength steel screws. use them for heavy duty stamping applications as well as earth moving machinery such as bulldozers and excavators. the zinc yellow chromate plating resists corrosion in wet environments. grade 9 steel hex head screws are marked with nine radial lines.
grade 10.9 carbon steel allen cap screw suppling at morocco, high tensile carbon steel gr 12.9 hex domed cap nuts suppling at indonesia, carbon steel grade 8.8 hexagon nut, carbon steel gr 12.9 head erw neck bolts manufacturing at tanzania, high tensile cs grade 10.9 threaded stud, carbon steel gr 12.9 hex head screw supplier & exporter in mumbai india.
use in conjunction with drawer 63005 and insert card 9701728 38523 m4 0.7 x 12mm 8.8 din 933 full thread zinc hex cap screw pack qty. 50
made from grade 8 steel, these bolts can be used in high stress applications, such as valves, pumps, motors, and automotive suspension systems. carriage bolts have a smooth, rounded head for a finished look. the square neck keeps these bolts from turning when tightening a nut.
fasteners are used for fastening and securing materials such as wood, metal, plastic, or concrete. they include nuts and bolts, threaded rods, structural bolts, machine screws, wedge anchors, washers, rivets, and more in a variety of types and sizes, including metric and inch.
us bolts head marking grade and material nominal size range (inches) mechanical properties ; proof load (psi) min. yield strength (psi) min. tensile strength (psi) 307a low carbon steel 1/4" thru 4" n/a n/a 60,000 no markings grade 2 low or medium carbon steel 1/4" thru 3/4" 55,000 57,000 74,000 over 3/4" thru 1 1/2" 33,000 36,000