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McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100
McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100

McMaster 91166A250 Zinc-Plated Steel General Purpose Washer, for M6 Screw Size, 6.4 mm ID, 12.0 mm OD, Pack of 100

UPC: | Harmonization / Schedule B : 7318.22.0000

Country of Origin: China | Shipping Weight: 0.225 lbs

$41.67 - $41.67
$41.67
$41.67 - $41.67
$41.67

Your go-to metal washer for every screw size. Washers take the pressure off nuts and screws to protect mounting surfaces.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

Material Certificate — Washers include a report with a traceable lot number.

Washer Designation General Purpose
Material Zinc-Plated Steel
For Screw Size M6
ID 6.4 mm
OD 12.0 mm
Thickness 1.4 mm to 1.8 mm
Certificate Form Digital
Certificate Type Material Certificate with Traceable Lot Number
Hardness Rockwell B75
Specifications Met DIN 125, ISO 7089
System of Measurement Metric
Washer Type Flat
Country of Origin China
DFARS Compliance Specialty Metals COTS-Exempt
Export Control Classification Number (ECCN) EAR99
REACH Compliance REACH (EC 1907/2006) (06/25/2025, 250 SVHC) Compliant
RoHS Compliance RoHS 3 (2015/863/EU) Compliant
Schedule B Number 731822.0000
U.S.–Mexico–Canada Agreement (USMCA) Qualifying No