Skip to content

McMaster 91144A123 Steel Structural Washer, for M14 Screw Size, 15.0 mm ID, 28.0 mm OD, Pack of 10

Original price $46.67 - Original price $46.67
Original price
$46.67
$46.67 - $46.67
Current price $46.67

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.

Steel — Best for dry environments since moisture will cause these washers to rust.

High-Strength Fastener—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.

Application Structural
Material Steel
For Screw Size M14
ID 15.0 mm
OD 28.0 mm
Thickness 2.7 mm to 3.3 mm
For Fastener Strength Grade/Class Class 10.9
Specifications Met DIN 6916
Fastener Strength Rating High
Hardness Rockwell C31
System of Measurement Metric
Washer Type Flat
Country of Origin China, Germany
DFARS Compliance Specialty Metals COTS-Exempt
Export Control Classification Number (ECCN) EAR99
REACH Compliance REACH (EC 1907/2006) (02/04/2026, 253 SVHC) Compliant
RoHS Compliance RoHS 3 (2015/863/EU) Compliant
Schedule B Number 731816.0000
U.S.–Mexico–Canada Agreement (USMCA) Qualifying No