Metric Flat Washers

Metric Flat Washers sit under a bolt head or nut to spread the clamp load and protect the work surface. The right washer protects the joint, spreads the load, and keeps the fastener from working loose over time. South Coast Fasteners keeps Metric Flat Washers in stock and ready to ship, with fast 3-5 day shipping. Popular options include alloy steel metric flat washers, zinc plated metric flat washers, and plain steel metric flat washers.

Bolt or Screw Size	Inside Diameter	Outside Diameter	Thickness	Material	Finish
M18 (19 MM x 34 MM x 3 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Plain	248029	M18	19 MM	34 MM	3 MM	Steel	Plain	View Details
M20 (21 MM x 37 MM x 3 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Plain	248030	M20	21 MM	37 MM	3 MM	Steel	Plain	View Details
M22 (23 MM x 39 MM x 3 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Plain	248031	M22	23 MM	39 MM	3 MM	Steel	Plain	View Details
M24 (25 MM x 44 MM x 4 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Plain	248032	M24	25 MM	44 MM	4 MM	Steel	Plain	View Details
M27 (28 MM x 50 MM x 4 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Plain	248033	M27	28 MM	50 MM	4 MM	Steel	Plain	View Details
M30 (31 MM x 56 MM x 4 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Plain	248035	M30	31 MM	56 MM	4 MM	Steel	Plain	View Details
M36 (37 MM x 66 MM x 5 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249017	M36	37 MM	66 MM	5 MM	Steel	Zinc Cr+3	View Details
M4 (4.3 MM x 9 MM x 0.8 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249019	M4	4.3 MM	9 MM	0.8 MM	Steel	Zinc Cr+3	View Details
M5 (5.3 MM x 10 MM x 1 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249020	M5	5.3 MM	10 MM	1 MM	Steel	Zinc Cr+3	View Details
M6 (6.4 MM x 12 MM x 1.6 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249021	M6	6.4 MM	12 MM	1.6 MM	Steel	Zinc Cr+3	View Details
M7 (7.4 MM x 14 MM x 1.6 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249022	M7	7.4 MM	14 MM	1.6 MM	Steel	Zinc Cr+3	View Details
M8 (8.4 MM x 16 MM x 1.6 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249023	M8	8.4 MM	16 MM	1.6 MM	Steel	Zinc Cr+3	View Details
M10 (10.5 MM x 20 MM x 2 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249024	M10	10.5 MM	20 MM	2 MM	Steel	Zinc Cr+3	View Details
M12 (13 MM x 24 MM x 2.5 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249025	M12	13 MM	24 MM	2.5 MM	Steel	Zinc Cr+3	View Details
M14 (15 MM x 28 MM x 2.5 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249026	M14	15 MM	28 MM	2.5 MM	Steel	Zinc Cr+3	View Details
M16 (17 MM x 30 MM x 3 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249027	M16	17 MM	30 MM	3 MM	Steel	Zinc Cr+3	View Details
M18 (19 MM x 34 MM x 3 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249028	M18	19 MM	34 MM	3 MM	Steel	Zinc Cr+3	View Details
M20 (21 MM x 37 MM x 3 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249029	M20	21 MM	37 MM	3 MM	Steel	Zinc Cr+3	View Details
M22 (23 MM x 39 MM x 3 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249030	M22	23 MM	39 MM	3 MM	Steel	Zinc Cr+3	View Details
M24 (25 MM x 44 MM x 4 MM) Metric Flat Washers, DIN 125A (200 HV), Steel, Zinc Cr+3	249031	M24	25 MM	44 MM	4 MM	Steel	Zinc Cr+3	View Details

Showing 41-60 of 198 Results

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Showing 41-60 of 198 Results

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Materials and Finishes

Choose Metric Flat Washers by grade and finish, with carbon steel for general work, alloy for strength, and stainless for corrosion resistance, plus zinc and hot-dip galvanized options for the outdoors. Pair them with fender washers, fasteners, and Bolts to round out the assembly.

How to Choose

Match the grade to the working load and the finish to the environment after locking in diameter, thread pitch, and length. Harsh or corrosive settings call for alloy or stainless.

Metric Flat Washers Industry Applications

Metric Flat Washers are specified across the trades. Manufacturing and electrical spread clamping load and protect surfaces with them, while HVAC and construction add tension to keep joints tight with them. Plain, zinc, and stainless, in SAE, USS, and structural sizes matched to the bolt diameter. Stocked in metric DIN and ISO sizes.

Frequently Asked Questions

What materials and finishes are metric flat washers available in?

Choose Metric Flat Washers by grade and finish, with carbon steel for general work, alloy for strength, and stainless for corrosion resistance, plus zinc and hot-dip galvanized options for the outdoors. Common options include flat washers and nylon flat washers.

What are metric flat washers used for?

Metric Flat Washers are relied on across manufacturing, electrical, HVAC, and construction, from structural framing and heavy equipment to machinery and general repair.

How do I choose the right metric flat washers?

Match the grade to the working load and the finish to the environment after locking in diameter, thread pitch, and length. Harsh or corrosive settings call for alloy or stainless.

Can I order in bulk or request a quote?

Yes. Stock covers small orders and full production runs. Reach out for a quote or product help.

Why Choose South Coast Fasteners?

South Coast Fasteners stocks fasteners, PPE, hand tools, cutting tools, abrasives, and industrial supplies at competitive pricing, with fast shipping and a team that works the products daily. We also stock Finished Hex Nuts, metric washers, and nuts.