---
product_id: 492093461
title: "Steel Flat Washer, Black Oxide Finish, ASME B18.22.1, 5/16\" Screw Size, 11/32\" ID, 11/16\" OD, 0.065\" Thick (Pack of 100)"
brand: "small parts"
price: "₨15515"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/492093461-steel-flat-washer-black-oxide-finish-asme-b18-22-1
store_origin: LK
region: Sri Lanka
---

# Bulk pack of 100 washers Precision 5/16" screw size Durable black oxide corrosion resistance Steel Flat Washer, Black Oxide Finish, ASME B18.22.1, 5/16" Screw Size, 11/32" ID, 11/16" OD, 0.065" Thick (Pack of 100)

**Brand:** small parts
**Price:** ₨15515
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your build game with precision and protection!

## Quick Answers

- **What is this?** Steel Flat Washer, Black Oxide Finish, ASME B18.22.1, 5/16" Screw Size, 11/32" ID, 11/16" OD, 0.065" Thick (Pack of 100) by small parts
- **How much does it cost?** ₨15515 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/492093461-steel-flat-washer-black-oxide-finish-asme-b18-22-1)

## Best For

- small parts enthusiasts

## Why This Product

- Trusted small parts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Standardized Quality:** Meets ASME B18.22.1 specs for reliable, industry-grade performance.
- • **Bulk Pack Convenience:** 100 washers per pack to keep your projects running without interruption or extra trips.
- • **Perfect Fit Precision:** 11/32" inner diameter and 11/16" outer diameter tailored for 5/16" fasteners—no guesswork needed.
- • **Engineered for Strength:** Alloy steel construction ensures maximum load distribution and durability under pressure.
- • **Corrosion-Resistant Finish:** Black oxide coating provides mild rust protection and smooth installation every time.

## Overview

This pack of 100 flat washers, crafted from durable alloy steel with a black oxide finish, offers reliable load distribution and mild corrosion resistance. Sized for 5/16" screws and compliant with ASME B18.22.1 standards, these washers deliver professional-grade performance for all your fastening needs.

## Description



## Features

- Flat washer provides a bearing surface for fastener load distribution or acts as a spacer
- Steel is often used in applications where strength is the primary consideration
- Black oxide finish offers mild corrosion resistance and lubricity
- Meets ASME B18.22.1 specifications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Alloy Steel |
| Washer Type | Flat |
| Exterior Finish | Oxide Finish,Steel |
| Fastener Size | 5/16" |
| Item Thickness | 0.07 Inches |
| Size | Pack of 100 |
| Metal Type | Alloy Steel |
| Brand | Small Parts |
| Number of Pieces | 100 |
| Manufacturer | Small Parts, Inc |
| Country of Origin | USA |
| Item model number | 31WSAEBPK |
| Package Dimensions | 12.2 x 12.1 x 2.6 cm; 225 g |
| ASIN | B009OJHUKG |

## Product Details

- **Material:** Alloy Steel
- **Washer Type:** Flat
- **Exterior Finish:** Oxide Finish,Steel
- **Fastener Size:** 5/16"
- **Item Thickness:** 0.07 Inches

## Images

![Steel Flat Washer, Black Oxide Finish, ASME B18.22.1, 5/16" Screw Size, 11/32" ID, 11/16" OD, 0.065" Thick (Pack of 100) - Image 1](https://m.media-amazon.com/images/I/81hBoi5QsRL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Small Parts 31WSAEBPK Steel Flat Washer, Black Oxide Finish, ASME B18.22.1, 5/16" Screw Size, 11/32" ID, 11/16" OD, 0.065" Thick (Pack of 100)
- cSeao 10pcs Black 5/16-18 x 4" Socket Cap Screws Allen Head Bolts with One Hex Key
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**Shop now:** [https://www.desertcart.lk/products/492093461-steel-flat-washer-black-oxide-finish-asme-b18-22-1](https://www.desertcart.lk/products/492093461-steel-flat-washer-black-oxide-finish-asme-b18-22-1)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-19*