Grade 9 Bolts Specifications

Use with astm a325 structural bolts.

Grade 9 bolts specifications.

Special alloy steels and heat treatments are used to achieve 180 000 psi tensile strength. 180 000 psi tensile strength. Grade bb bolts studs alloy steel quenched and tempered 1 4 thru 2 2 thru 4 80 000 75 000 83 000 78 000 105 000 100 000 astm a354 grade bc bolts studs alloy steel quenched and tempered 1 4 thru 2 2 thru 4 105 000 95 000 109 000 99 000 125 000 115 000 astm j429 grade 7 bolts and screws medium carbon alloy steel. Use them for heavy duty stamping applications as well as earth moving machinery such as bulldozers and excavators.

16mm 72mm. Sae j429 grade 5 k 0 15 k 0 17 103 121 128 171 105 120 141 3706 245 1817 2371 2688 3162 278 1363 46 82 92 109 k 0 20 fnl grade 9 clamp tightening torque load tightening torque sae j429 grade 8 k 0 15 4169 k 0 15 k 0 17 k 0 20 unified coarse thread series fine thread series 3544 k 0 15 383 91 325 78 287 68 327 157 k 0 17 281. Similar to grade 2. Use with astm a325 structural bolts.

5mm 100mm. 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. They are similar to grade 8 but have a tensile strength of 180 000 psi compared to grade 8 at 150 000 psi. Grade 9 steel hex head screws are marked with nine radial lines.

Similar to grade 5. Hex head cap screws are typically used to create a bolted joint in which a threaded shaft exactly fits a corresponding tapped hole or nut. Yield strength mpa min. The highest metric.

Grade 9 steel. They are domestically made in the usa and fabricated from high grade alloy steel providing extremely high mechanical strength from an off the shelf fastener. Grade 9 hex head bolts. The zinc yellow chromate plating resists corrosion in wet environments.

1 proofload is the published number that full size headed bolts are tested to. The screw head is designed to fit a ratchet or spanner torque wrenches allowing you to tighten the screw to your exact specifications. For bolting specifications that do not have a published proofload it is usually calculated at 92 of minimum yield strength. Grade 9 yellow zinc chromate 180 000 psi.

Made in the usa. Proof load mpa min. Head marking class and material nominal size range mm mechanical properties. Wholesale grade l9 fasteners.

Class 10 9 alloy steel quenched and tempered. F911 or l9 zinc yellow plated. Strength is similar to grade 5. L9 pfc9 or f911.

The bolt is stressed up to the proofload value and if there is no deformation elongation or fracture then the bolt is deemed to have passed. Similar to grade 8. Tensile strength mpa class 8 8 medium carbon steel quenched and tempered.