GB/T 93-2025 Fasteners — Single coil spring lock washers — Normal type
1 Scope
This document specifies the type dimensions, technical requirements, marking, labeling and designation for single coil spring lock washers, normal type.
This document is applicable to single coil spring lock washers, normal type, with a specification ranging from 1.6 mm to 48 mm (hereinafter referred to as "washers").
Note: When the single coil spring lock washers specified in this document are used in conjunction with grades 10.9 and 12.9 bolts and screws, it is necessary to pay attention to the expansion phenomenon of single coil spring lock washers.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 90.1 Fasteners - Acceptance inspection
GB/T 90.2 Fasteners - Marking and packaging
GB/T 94.1 Specification for spring washers - Single coil spring lock washers
GB/T 1220 Stainless steel bar
GB/T 1222 Spring steels
GB/T 1237 Designation system for fasteners
GB/T 3099.4 Terminology of fasteners - Control, inspection, delivery, acceptance and quality
GB/T 3114 Copper and copper alloy rectangular wire
GB/T 4240 Stainless steel wires
GB/T 4354 Hot-rolled quality carbon steel wire rods
GB/T 4357 Cold-drawn unalloyed steel wire for springs
GB/T 5267.1 Fasteners - Electroplated coatings
GB/T 5267.2 Fasteners - Non-electrolytically applied zinc flake coatings
GB/T 5276 Fasteners - Bolts, screws, studs and nuts - Symbols and descriptions of dimensions
YB/T 5319 Trapezed steel wire for spring washer
3 Terms and definitions
No terms and definitions are listed in this document.
4 Type and dimension
Contents
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Type and dimension
5 Technical requirements
6 Marking and labeling
7 Designation
Bibliography
