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Read Full Story >Mil-Carb MC® Grade 8 Washers
Whenever high-strength hardened steel bolts are used specify High Strength Mil-Carb Washers with the exclusive MC®, MC2® , or MCx mark of a quality product identification.
Dimensions listed are to ANSI specifications. These washers maintain the integrity of high-strength fastener assemblies in OEM or replacement applications. To be used with SAE Grade 5, Grade 8, or better bolts.
Fabricated from prime quality medium carbon steel. Through hardened (quenched and tempered) R/C 38-45, and electro zinc-plated.
MC® washers are available in 1/4" through 1-1/2" bolt sizes in U.S. Standard dimensions and 1/4" through 2" bolt sizes in SAE dimensions. Other sizes are available through special order.
Certificates of compliance are available upon request.
U.S Standard Dimensions
| Bolt Size | Outside Diameter |
Inside Diameter |
Thickness | Approx Lbs per M Pcs |
Approx pcs per Carton |
Add to Cart |
|---|---|---|---|---|---|---|
| 1/4 | .750 | .313 | .055/.065 | 6.4 | 7,500 | Add to Cart |
| 5/16 | .875 | .375 | .064/.080 | 10 | 5,000 | Add to Cart |
| 3/8 | 1.000 | .438 | .064/.080 | 13 | 3,500 | Add to Cart |
| 7/16 | 1.250 | .500 | .064/.080 | 21 | 2,500 | Add to Cart |
| 1/2 | 1.375 | .563 | .100/.116 | 38 | 1,500 | Add to Cart |
| 9/16 | 1.500 | .625 | .100/.116 | 45 | 1,100 | Add to Cart |
| 5/8 | 1.750 | .688 | .122/.138 | 77 | 700 | Add to Cart |
| 3/4 | 2.000 | .813 | .122/.138 | 100 | 500 | Add to Cart |
| 7/8 | 2.250 | .938 | .136/.160 | 138 | 350 | Add to Cart |
| 1 | 2.500 | 1.063 | .136/.160 | 169 | 300 | Add to Cart |
| 1-1/8 | 2.750 | 1.250 | .136/.160 | 198 | 250 | Add to Cart |
| 1-1/4 | 3.000 | 1.375 | .136/.160 | 234 | 200 | Add to Cart |
| 1-3/8 | 3.250 | 1.500 | .136/.160 | 271 | 185 | Add to Cart |
| 1-1/2 | 3.500 | 1.625 | .136/.160 | 316 | 150 | Add to Cart |
S.A.E Dimensions
| Bolt Size | Outside Diameter |
Inside Diameter |
Thickness | Approx Lbs per M Pcs |
Approx pcs per Carton |
Add to Cart |
|---|---|---|---|---|---|---|
| 1/4 | .625 | .281 | .055/.065 | 4.6 | 10,000 | Add to Cart |
| 5/16 | .688 | .344 | .055/.065 | 5.1 | 10,000 | Add to Cart |
| 3/8 | .813 | .406 | .055/.065 | 7.2 | 7,000 | Add to Cart |
| 7/16 | .922 | .469 | .055/.065 | 9.1 | 5,000 | Add to Cart |
| 1/2 | 1.063 | .531 | .100/.116 | 18.2 | 2,425 | Add to Cart |
| 9/16 | 1.188 | .594 | .100/.116 | 23.4 | 2,250 | Add to Cart |
| 5/8 | 1.313 | .656 | .122/.138 | 38.4 | 1,340 | Add to Cart |
| 3/4 | 1.469 | .813 | .122/.138 | 44.5 | 1,120 | Add to Cart |
| 7/8 | 1.750 | .938 | .136/.152 | 66.8 | 695 | Add to Cart |
| 1 | 2.000 | 1.063 | .136/.160 | 89.4 | 555 | Add to Cart |
| 1-1/8 | 2.250 | 1.250 | .136/.160 | 111 | 435 | Add to Cart |
| 1-1/4 | 2.500 | 1.375 | .136/.160 | 138 | 350 | Add to Cart |
| 1-3/8 | 2.750 | 1.500 | .136/.160 | 173 | 289 | Add to Cart |
| 1-1/2 | 3.000 | 1.625 | .136/.160 | 209 | 240 | Add to Cart |
| 1-3/4 | 3.375 | 1.875 | .178/.196 | 328 | 150 | Add to Cart |
| 2 | 3.750 | 2.125 | .178/.196 | 398 | 125 | Add to Cart |