Approved Vendor

Washer for Structural Applications

Manufacturer part: 91144A113

Distribute pressure under structural screws and nuts in columns, joists, and I-beams. These thick washers are tested and certified to meet industry standards for handling high-stress loads.Corrosion-Resistant Galvanized Steel—These washers combine the strength of steel with the rust resistance of stainless steel. They're an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.High Fastener Strength Rating—About 25% stronger than medium-strength steel washers, these are commonly used when fastening components in valves, pumps, and motors. Pair them with other high-strength steel nuts and bolts.For Fastener Strength Grade/Class—If you require screws or nuts with a specific fastener strength rating, make sure your washer matches the grade or class.

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Technical data

Specifications

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ID
21.0 mm
OD
37.0 mm
ECCN
EAR99
Hardness
Rockwell C45
Material
Galvanized Steel
Thickness
3.7 mm to 4.3 mm
Application
Structural
Performance
Corrosion Resistant
Washer Type
Flat
For Screw Size
M20
RoHS Compliance
RoHS 3 (2015/863/EU) Compliant
DFARS Compliance
Specialty Metals COTS-Exempt
REACH Compliance
REACH (EC 1907/2006) (06/27/2024, 241 SVHC) Compliant
USMCA Qualifying
No
Country of Origin
Germany
Schedule B Number
731816.0000
Specifications Met
DIN 6916, ISO 7416
System of Measurement
Metric
Fastener Strength Rating
High
Fastener Strength Grade/Class
ISO Class 10.9
For Fastener Strength Grade/Class
ISO Class 10.9

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