ASTM A193 B7 A194 2H Blue PTFE Stud Bolt Assembly Shipped to Venezuela Pipeline Project
Proper flange bolting is essential to maintain leak-free connections on oil and gas piping systems, and matching stud bolt and heavy hex nut assemblies are critical for Venezuela’s energy site construction. Haihao Group has completed inspection and shipment of ASTM A193 B7 A194 2H Blue PTFE stud bolt assembly for the Venezuelan client, fully threaded stud bolts paired with two heavy-weight hex nuts and finished with blue PTFE coating.
ASTM A193 B7 A194 Gr2H stud bolt assembly, blue PTFE coating, UNC Class2A thread, multiple sizes shipped to Venezuela pipeline project
Product Specification Table
| Parameter | Specification |
| Product | Fully Threaded Stud Bolt + 2 Heavy Hex Nuts |
| Stud Bolt Standard & Thread | ASME B1.1, UNC Class 2A |
| Nut Standard | ASME B18.2.2 |
| Material | Stud: ASTM A193 B7; Nut: ASTM A194 Gr 2H |
| Surface Finish | Blued base with Blue PTFE coating |
| Sizes | 5/8″×3-3/4″, 3/4″×4-3/4″,7/8″×5-3/4″,1-1/8″×6-1/2″,1-1/4″×7-3/4″ |
This ASTM A193 B7 A194 2H Blue PTFE stud bolt assembly batch includes five different size combinations. Stud bolts follow ASME B1.1 with UNC Class 2A threads. The sizes cover 5/8″, 3/4″,7/8″,1-1/8″, and 1-1/4″, with corresponding lengths ranging from 3-3/4″ up to 7-3/4″. Each set is supplied complete with two heavy hex nuts manufactured per ASME B18.2.2, with different threads per inch to match each stud bolt size.
The material for each ASTM A193 B7 A194 2H Blue PTFE stud bolt assembly is carefully controlled. Stud bolts are ASTM A193 B7 alloy steel, while heavy hex nuts adopt ASTM A194 Gr 2H carbon steel. The blued base surface plus blue PTFE coating provides good anti-galling and corrosion resistance, which helps technicians achieve consistent torque values during flange tightening in field environments. Our QC team checks thread profile, coating integrity and dimensional tolerances on every assembly.
Material test reports and coating inspection records accompany each bundle of ASTM A193 B7 A194 2H Blue PTFE stud bolt assembly. Permanent marking on each stud and nut confirms grade and specification for easy identification on-site. The hardware is packed to avoid thread damage during sea transit. We can produce other grades, coatings and custom lengths of stud bolt assemblies for different pressure class flanges.
Haihao Group supplies flange bolting sets for South American oil and gas projects. We manufacture ASTM A193 B7 A194 2H Blue PTFE stud bolt assembly in a wide range of UNC thread sizes and lengths. Share your bolting schedule and service requirements with our engineering team to get your quotation.