M12 Large OD Washer – Maximum Surface Protection & Load Distribution
Upgrade your fastening setup with the M12 Large Outer Diameter Washer, designed to provide enhanced load distribution and material protection. Manufactured to DIN 9021 / ISO 7093-1 standards, this fender washer features a 37 mm outer diameter, making it ideal for use with M12 bolts where extra coverage and strength are required.
Whether you're working with thin sheet metal, soft materials, or oversized holes, this washer delivers reliable support and prevents pull-through, deformation, or damage to the work surface.
✅ Key Features:
Inner Diameter: 13 mm (for M12 bolts)
Outer Diameter: 37 mm – extra-wide for superior load spread
Thickness: 3.0 mm nominal
Material Options: Zinc-plated steel, Stainless Steel A2 (304), or A4 (316 marine grade)
Item Attributes
| Nominal diameter | 13 mm (±0 / +0.27 mm)(Inner Diameter) , 37 mm (± 0 / –0.62 mm)(Outer Diameter) |
| Weight | ~22.2 kg (per 1,000 washers) |
| Thickness | 3.0 mm nominal (min 2.7 mm – max 3.3 mm) |
| Thread Size | M12 (fits 12 mm bolts) |