ASME B18.22.1 SAE Flat Washer, Carbon Steel and Stainless Steel Washer for Construction and Machinery
Product Overview
SAE Flat Washer ASME B18.22.1 Carbon Steel Stainless Steel Washer is manufactured strictly in accordance with ASME B18.22.1 specification. Compared with USS wide flat washers, this narrow style features a compact outer diameter, which fits installation spaces with limited clearance and can be well matched with UNC and UNF inch fasteners.
We prepare two material solutions for SAE Flat Washer ASME B18.22.1 Carbon Steel Stainless Steel Washer. The carbon steel version brings cost advantages for general indoor assembly, while the stainless steel version provides reliable anti-corrosion performance for outdoor and humid working environments.
Basic Specification Table
|
Item |
Specification |
|
Standard |
ASME B18.22.1 |
|
Product Type |
SAE Narrow Flat Washer |
|
Material Options |
Carbon Steel, Stainless Steel (304 / 316) |
|
Stock Sizes |
#4, #6, #8, 1/4", 5/16", 3/8", 1/2", 5/8" |
|
Available Finish |
Zinc plated, black oxide, hot dip galvanized, passivation |
|
Typical Application |
Construction connection, machinery equipment assembly |
Material Performance Introduction
Different materials bring completely different service limits for this washer. Carbon steel and stainless steel each have their own advantages, which helps buyers select the right model according to the site environment and budget.
Material Feature Table
|
Material |
Core Advantages |
Recommended Working Condition |
|
Carbon Steel |
Low cost, good stamping performance, high hardness after heat treatment |
Indoor assembly, dry environment, low corrosion risk |
|
304 Stainless Steel |
Good general rust resistance, stable performance |
Outdoor building, normal humid environment |
|
316 Stainless Steel |
Excellent salt fog and chemical resistance |
Coastal areas, marine auxiliary equipment |
Carbon Steel Version Features
- Provides stable mechanical strength under normal clamping load, not easy to deform or crack
- Supports multiple surface treatments to improve rust resistance and appearance
- Abundant stock and fast delivery for bulk construction orders
- Suitable for matching with A563, A307 and other American standard carbon steel fastener sets
Stainless Steel Version Features
- No extra plating required, natural passive film prevents rust erosion
- Maintains stable performance under frequent temperature changes
- Resists weak acid and moisture corrosion for long-term outdoor service
- Matches stainless steel bolts such as A194 Grade 8 for high-standard projects
Performance & Application
SAE Flat Washer ASME B18.22.1 Carbon Steel Stainless Steel Washer is designed to spread bolt pressure evenly, protect workpiece surfaces and reduce loosening risks under continuous vibration. Precision stamping guarantees smooth burr-free surfaces and tight dimensional tolerance for great interchangeability.
It is commonly stocked in popular inch sizes and supports bulk carton packing for large construction and machinery procurement orders.
FAQ
Q1: What is the difference between SAE flat washer and USS flat washer?
A: SAE flat washer is narrow type with smaller outer diameter for compact installation; USS flat washer is wide type for larger load dispersion. Both follow ASME B18.22.1.
Q2: Is surface treatment necessary for carbon steel washers used outdoors?
A: Yes. Untreated carbon steel washers are easy to rust. Zinc plating or hot dip galvanizing is required for outdoor use.
Q3: What fasteners match this SAE flat washer?
A: It is suitable for UNC and UNF inch bolts and nuts, such as 1/4-20, 5/16-18, 3/8-16.
Q4: Can you support customized packing?
A: Standard bulk carton packing is available, and customized packing solutions can be arranged on request.
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