WASHERS
ASTM F436 Type 1 Hardened Circular Washers
Type 1 Hardened Circular Washers for specified bearing and bolted-joint requirements.
Product Overview
A hardened circular washer provides a specified bearing component for mechanical or structural bolting assemblies. The material type, dimensional system and washer style must be identified independently, since the standard includes different configurations. A complete enquiry should pair the washer with the intended bolt and nut assembly rather than specify hardness or nominal size in isolation.
Provide the nominal bolt size, washer dimensions, material and hardness requirement, plus the mating bolt grade and surface finish. Confirm the bearing surface and the intended service environment. Requested combinations remain subject to technical and supply review.
Key Features
- Hardened steel washer family
- Circular style
- Type 1 material designation
Specifications
- Standard
- ASTM F436/F436M-24, Type 1, circular style
- Grade
- Type 1; required hardness and testing to confirm
- Diameter
- Specify nominal bolt size and actual washer ID/OD
Materials & Finishes
- Material
- Carbon steel for Type 1; conformity unconfirmed
- Finish
- Subject to material, service conditions and specification
Typical Applications
- Structural bolt assemblies
- Specified mechanical joints
- Steel fabrication
Size Range / Technical Notes
- Size Range
- Standard scope: nominal fastener diameters 1/4-4 in or M12-M100, using each system independently. Exact size and material combinations require confirmation.
- Technical Notes
- Specify inch or metric dimensions, material type and style. Do not mix the dimensional systems or equate Type 1 with weathering-steel Type 3. Compliance and matched-bolt suitability need documentary confirmation.
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.