Overview
ISO 2380-2:2004 - "Assembly tools for screws and nuts - Screwdrivers for slotted-head screws - Part 2" defines the general requirements, blade lengths and marking for hand-operated screwdrivers used with slotted-head screws (the blade tips themselves are defined in ISO 2380-1). This ISO standard ensures dimensional compatibility, safety and clear identification of screwdrivers used in industrial assembly, maintenance and manufacturing.
Key topics and technical requirements
- Scope: Applies to hand-operated screwdrivers for slotted-head screws, referencing tip dimensions in ISO 2380-1 and tolerance/product grades in ISO 4759-1.
- General requirements: Handle material, shape and finish must be suitable for normal use; handles and blades must be free from roughness or faults that could cause accidents. Torque requirements reference ISO 2380-1.
- Blade lengths: Blade lengths (l) are specified in Table 1 and organized into four series (A, B, C, D) to match tip dimensions. The standard provides a mapped set of nominal blade lengths for each tip size.
- Hexagonal drive allowance: For tips of nominal dimensions 1.0 mm × 5.5 mm and larger, a hexagonal drive near the handle is permitted; the width across flats and tolerances must follow ISO 272 and ISO 4759-1. The dimension h (height of hex drive) has a minimum relationship to the flat width (h_min = 0.5 · s_min).
- Marking: Dimensions a and b (tip dimensions) and the trademark must be legible and indelible under normal use. Indicating blade length is optional; if present it must match the nominal table value.
- Designation: Prescribes a standardized naming format (example: “Screwdriver ISO 2380-2 A 1.2 × 8” or append “H” for hex drive).
Applications and who uses it
ISO 2380-2 is primarily useful for:
- Tool manufacturers designing and producing hand screwdrivers to ensure dimensional compatibility and safety.
- Procurement and specification engineers who need precise tool specifications for purchasing and parts lists.
- OEMs and assemblers ensuring tools match slotted-head fastener dimensions for reliable assembly.
- Quality assurance and testing teams verifying marking, blade lengths and ergonomic safety of hand tools.
- Maintenance departments standardizing tool sets for consistent performance and reduced fastener damage.
Using ISO 2380-2 helps improve interchangeability, reduce wear and fastener damage, and supports workplace safety and traceability (via marking).
Related standards
- ISO 2380-1: Tips for hand- and machine-operated screwdrivers (blade tip forms and dimensions).
- ISO 4759-1: Tolerances for fasteners - ties product grades and tolerances to screwdriver/faster compatibility.
- ISO 272: Hexagon products - widths across flats (used for hex drives near handles).
Keywords: ISO 2380-2:2004, screwdrivers for slotted-head screws, blade lengths, marking, hand-operated screwdrivers, assembly tools, ISO 2380-1, ISO 4759-1, ISO 272.