40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
40+
Years fabrication
experience
10+
Years selling
washers & spacers
2
Premium grades
304 & 316
100% US Manufactured
Beveled and Recessed Washers for ARP Bolts
304 and 316 Stainless Steel Washer and Spacer Collections
Why Choose EXTSW
EXTSW combines more than 40 years of fabrication experience with 10 years of focused washer and spacer sales. We manufacture custom 304L and 316L stainless steel washers and spacers in the United States using domestic raw materials, with traceability supported by Material Test Reports and certification paperwork.
40+ Years of Fabrication Experience
EXTSW is a dedicated United States manufacturer of custom 304L and 316L stainless steel washers and spacers. With over four decades of fabrication expertise and ten years specifically focused on selling precision washers and spacers, we deliver consistent, reliable components for industrial, marine, and commercial applications.
100% Domestic Materials & Manufacturing
Every washer and spacer we sell is manufactured in our Sonora, California facility using 100% domestic raw materials. We provide full traceability with Material Test Reports (MTR) and certification paperwork available for all our products. By buying direct from the source, you ensure quality control and eliminate middleman markups.
Our Products and Services
Choose catalog washers and spacers or discuss a custom stainless steel solution with the EXTSW team. We ship to all 50 states, with orders typically processed within 1 to 2 business days. Contact us at contact@extsw.com or (209) 517-3150 for product and service support.
Custom Stainless Steel Washers
We manufacture custom 304L and 316L stainless steel washers to your exact specifications. From extra-thick structural washers to precision beveled designs, our custom capabilities ensure you get the exact dimensions and material grade required for your project. Explore our custom stainless steel washer capabilities.
Precision Spacers & Manufacturing Services
In addition to our standard catalog, we provide specialized manufacturing services including precision turning, beveling, and recessing for ARP bolts. We ship to all 50 states with orders typically processed within 1 to 2 business days. View our manufacturing services.
Frequently Asked Questions
Find answers to common questions about our materials, manufacturing, and applications.
304 stainless steel is ideal for general industrial and fabrication use with strong corrosion resistance. 316 stainless steel includes molybdenum for enhanced resistance against chemicals, saltwater, and harsh cleaning environments.
Yes. All EXTSW washers and spacers are manufactured in the United States.
Yes. Our spacers are precision-turned for consistent sizing, alignment, and dependable fitment.
Our products are commonly used in beverage equipment, dairy processing, marine applications, industrial fabrication, machinery assembly, and structural mounting systems.
Yes. EXTSW specializes in extra-thick stainless washers designed for improved load distribution and durability.
Yes. 316 stainless steel is specifically recommended for marine, chemical, and high-moisture environments because of its superior corrosion resistance.










