EXTSW BEVELED .443” ID x .990" OD x .250” Thick 316 Stainless washer, Fits #401-8306 ARP 12 pt Nut

EXTSW BEVELED 7/16”(.443") ID x 1" (.990") OD x .250” Thick 316 Stainless Washer

(Fits 7/16" 12 point ARP 401-8603 Nuts)
(Recessed .080" x .700") Beveled
(+/- .003 on all dimensions)

(.030 inch Radius OD) / Slightly countersunk ID (no sharp edges)
 Made in USA. 316 Stainless has the ULTIMATE corrosion resistance.

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