HEX BOLTS
ASTM F3125 Grade A490 Heavy Hex Structural Bolts
A490 heavy hex structural bolts for engineered steel connections with matched assembly requirements.
Product Overview
Grade A490 heavy hex bolts are specified for structural steel connections that require this bolting grade and style. Procurement should cover the complete joint requirement, including compatible nuts and washers, inspection documentation and the installation method. An A490 bolt is not a direct replacement for another structural grade solely because the diameter and length match.
For an accurate quotation, specify the thread size, nominal length, material requirement and surface finish, together with the intended mating component. Dimensions, inspection requirements and the exact material and finish combination must be agreed before order confirmation.
Key Features
- A490 grade designation
- Heavy hex structural style
- Assembly-level selection required
Specifications
- Standard
- ASTM F3125/F3125M-26, Grade A490
- Grade
- A490; type and documentary compliance to confirm
- Diameter
- 1/2-1-1/2 in standard scope; supply unconfirmed
- Length
- Specify nominal length in RFQ
- Head type
- Heavy hexagon
- Drive type
- External hexagon
- Thread type
- Inch thread; ordered specification governs
Materials & Finishes
- Material
- Steel/alloy steel as required by the specified A490 type; supply unconfirmed
- Finish
- To be agreed under the ordered A490 coating restrictions
Typical Applications
- Engineered steel connections
- Structural fabrication
- Specified construction joints
Size Range / Technical Notes
- Size Range
- Published A490 heavy-hex scope: 1/2 to 1-1/2 inch. Metric A490M is a separate designation. Exact size and material combinations require confirmation.
- Technical Notes
- ASTM A490 and A325 were consolidated into F3125. The existing A325 product is excluded from this batch. Confirm the ordered edition, type, matched assembly and test evidence. Do not assume galvanizing or other coatings are permitted for A490. No JC certification or mechanical guarantee is claimed.
Packaging & Customization
- Packing
- Packing method and pack quantity to be agreed
- MOQ
- Subject to specification/size and order quantity
- Customization Notes
- Submit drawings, finish requirements and packaging or marking requests for feasibility review. Custom production and OEM support require separate confirmation.