EXTSW 12.54 mm ID x 37.84 mm OD x 31.76 mm Thick 316 Stainless Washer

EXTSW 12.54 mm ID x 37.84 mm OD x 31.76 mm Thick 316 Stainless Washer

Actual size .494” ID x 1.490” OD x 1.250” thick

(+/- .003 on all dimensions)

Made in USA on a CNC lathe

It is a beautiful fit for your 12 mm Stainless bolts or shafts

We can make as many as you need, just contact me.


316 Grade Alloy Stainless contain a higher percentage of nickel than 304SS. The resultant composition gives a much improved corrosion resistance in many aggressive environments. The molybdenum addition ensures more resistance to pitting and crevice corrosion in chloride-containing media, sea water and chemical environments such as sulfuric acid compounds, phosphoric and acetic acids. The lower rate of general corrosion in mildly corrosive environments gives 316 SS a good atmospheric corrosion resistance in polluted marine atmospheres. 


316 SS offers good strength and creep resistance and also possesses excellent mechanical and corrosion-resistant properties at sub-zero temperatures.

Same-day shipping — cutoff times (12 PM for Next Day Air, 2 PM for 2nd Day Air) with color-coded badges

Shipping methods — all USPS flat rates and UPS variable options in a clean card grid

Order tracking — email notification and 24hr update window

Delivery & locations — US-only, business-day estimates, carrier delay disclaimer

Lost or damaged — clickable email and phone contact links

Business Name: EXTSW
Owner/Operator: Thomas Hoffman

Business Address:
19506 Industrial Drive, Ste F
Sonora, CA 95370
United States

Customer Service Contact:
Email: contact@extsw.com
Phone: +1 (209) 517-3150

Customer Support Hours:
Monday – Friday: 9:00 AM – 5:00 PM