Technical resources
Washer Knowledge
Technical explanations of standards, dimensions, hardness, finishes and purchasing confirmation, linked directly to the relevant products.
Technical articles with FAQ and product links.
Quality & Inspection
Check Every Product Detail
Dimensions, appearance, hardness and batch documentation: clear inspection requirements support clear acceptance.
- Dimensions & profile
- Edges & surface finish
- Hardness & test records
GB/T 93-2025 Normal-Type Spring Lock Washer
The current edition, size range, key dimensional fields, technical requirements and treatment of legacy GB/T 93-1987 purchase documents.
Specifying Washer Finishes: Eight Processes and Purchasing Requirements
How appearance, coating system, corrosion target, dimensional effect and hydrogen embrittlement affect finish selection.
GB/T 96 vs GB/T 97: What Is the Difference?
A practical comparison of product structure, outside-diameter series, nominal ranges and available hardness levels.
What Do 140HV, 200HV and 300HV Mean?
How hardness levels support washer identification, selection and purchasing communication.
Parameters to Confirm When Selecting a Plain Washer
A field-by-field checklist for purchasing and technical confirmation of plain washers.
GB/T 852 Square Taper Washers for I-Sections
Current status, M6–M36 range, dimensional fields and purchasing requirements for GB/T 852-1988.
GB/T 853 Square Taper Washers for Channels
Current status, M6–M36 range, dimensional fields and purchasing requirements for GB/T 853-1988.
GB/T 852 vs GB/T 853: What Is the Difference?
How application, geometry and dimensional fields distinguish the two square taper washer standards.
Why Washer Hardness Matters
Why hardness must be explicit in product identification, selection and lot communication.
How to Decode a Washer Purchase Description
Turn an informal request into verifiable standard, hardness/material, nominal size and delivery fields.
How to Read Common Plain-Washer Dimensions
A guide to d, dc, h and tolerance limits in GB/T 96.1 and GB/T 97.1 dimension tables.
What Should an Industrial Washer Purchase List Contain?
A practical field structure covering product, delivery and contact information for a washer purchase list.
Downloads
Washer Specification Reference
RINGRHINO Product Catalogue
Product range, inspection guidance, drawings and dimension tables in the original Chinese catalogue.
Product Drawing Library
Choose a product family to view its drawing, dimension table and original drawing download.
Washer Dimension Reference
GB/T 93, GB/T 96.1, GB/T 97.1, GB/T 852 and GB/T 853 tables, finish notes and DIN/ISO comparison references.
Surface Finish Guide
Eight finish options, including Dacromet, mechanical zinc, zinc-nickel and Teflon, including dimensions, corrosion and hydrogen-embrittlement cautions.
Reference note: use the workbook alongside the applicable standard, drawing and order specification when confirming a purchase.