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Certification:ISO9001:2008
ASTM A490 A490M Black 10.9 Grade Heavy Hex Bolt M24X100 Hex head Bolts
Product Description
Hex Heavy structural bolts are designed for steel-to-steel structural connections. The ASTM A325 and A490 specifications cover high strength heavy hex structural bolts from 1/2" to 1-1/2" diameter. These bolts are intended for use in structural connections and it have shorter thread lengths than standard hex bolts. The A325 and A490 specifications are not intended for general applications.
The ASTM A490 specification covers quenched and tempered, alloy steel, heavy hex structural bolts from 1/2" to 1-1/2" diameter with a 150 ksi to 173ksi tensile. A490 bolts are similar in application and dimensions to A325 Hex Cap Screws heavy hex structural bolts but are made from an alloy steel rather than a medium carbon steel, resulting in a higher strength fastener
The bolts are intended for use in structural connections. these connections are covered under the requirements of the specification for structural joints using ASTM A325 OR A490 Bolts,approved by the research Council on Structural connections. Endorsed by the Amercican Institute of steel Construction and by the industrial Fasteners Institure.
A490 Chemical Properties| Type 1 Bolts | ||
|---|---|---|
| Element | Sizes 1/2 to 1-3/8 | Size 1-1/2 |
| C, max | 0.30 - 0.48% | 0.35 - 0.53% |
| P, max | 0.040% | 0.040% |
| S, max | 0.040% | 0.040% |
A490 Mechanical Properties
| Size | Tensile, ksi | Yield, ksi | Elong. %, min | RA %, min |
|---|---|---|---|---|
| 1/2 - 1-1/2 | 150-173 | 130 | 14 | 40 |
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