GB/T 3750.3-1983
Replaced
T/HEBQIA 439-2025
Active
Group standards
T/HEBQIA 439-2025 Fastener, grounding bolts
T/HEBQIA 439-2025 Fastener, grounding bolts
Price:
$ 20.00
Basic Information
Standard Code:
T/HEBQIA 439-2025
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
Bolts, screws, and studs
Publish Date:
2025-09-18
Implement Date:
2025-09-18
Scope
This document is applicable to ground screws used for connecting transmission line towers, electrical fittings, and other steel fasteners. This document specifies the size codes and markings, types, performance grades, technical requirements, test methods, acceptance inspections, markings, packaging, transportation, storage, and quality certificates of fastener ground screws.
Development Information
Related Standards
GB/T 5277-1985
Active
GB/T 5277-1985 Fasteners—Clearance holes for bolts and screws
GB/T 6560-1986
Replaced
GB/T 6560-1986 Cross recessed pan head thread forming screws
GB/T 6561-1986
Replaced
GB/T 6561-1986 Cross recessed countersunk head thread forming screws
GB/T 6562-1986
Replaced
GB/T 6562-1986 Cross recessed raised countersunk head thread forming screws
GB/T 6563-1986
Replaced