IS 1364:2018 Part 3 is the Indian Standard (BIS) for hexagon nuts, style 1 (sizes m1.6 to m64) of product grade a and b. This standard specifies the characteristics, dimensions, and tolerances of hexagon nuts, style 1, with metric coarse and fine pitch threads from M1.6 to M64, in product grades A and B. It is technically identical to ISO 4032.
Specifies characteristics for hexagon nuts, style 1, with threads from M1.6 up to M64 and product grade A and B.
Overview
- Status
- Current
- Usage level
- Frequently Used
- Domain
- General — Fasteners, Bolts and Anchors
- Type
- Specification
Also on InfraLens for IS 1364
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! Style 1 nuts are the standard regular height nuts. Do not confuse with Style 2 (high nuts) or Style 0 (thin nuts).
! Product Grade A has tighter tolerances and is limited to sizes up to M16. Above M16, Grade B tolerances apply.
! For technical delivery conditions including mechanical properties and testing, always refer to the IS 1367 series.
Frequently referenced clauses
Cl. 3Dimensions
Cl. 4Requirements and Reference Standards
Cl. 5Designation
steelcarbon steelalloy steelstainless steel
International Equivalents
🌐
International Comparison — Coming Soon
We're adding equivalent international standards for this code.
Key Values4
Quick Reference Values
size rangeM1.6 to M64
product grade A applicabilityd ≤ 16 mm
product grade B applicabilityd > 16 mm
property classes steel5, 6, 8, 10, 12
Tables & Referenced Sections
Key Tables
Table 1 - Preferred threads dimensions
Table 2 - Non-preferred threads dimensions
Frequently Asked Questions4
What sizes are covered under IS 1364 Part 3?+
It covers metric sizes from M1.6 up to and including M64.
What is the difference between Product Grade A and B?+
Product Grade A has tighter dimensional tolerances and is used for nominal diameters d ≤ 16 mm, while Grade B is used for d > 16 mm.
Is this standard aligned with international standards?+
Yes, it is identical to ISO 4032.
Where are the mechanical properties for these nuts specified?+
Mechanical properties are specified in IS 1367 (Part 6) for steel nuts.
QA/QC Inspection Templates
📋
QA/QC templates coming soon for this code.