Shipment of ASTM A193 B7 Stud Bolts with A194 2H Nuts for Malaysia Client
Haihao Group has finished inspection and arranged shipment of a batch of ASTM A193 B7 stud bolts matched with ASTM A194 2H heavy hex nuts for our Malaysia partner. This set of fasteners adopts Xylar plus Xylan composite coating, prepared for flange joint connections on local oil and gas piping projects.

ASTM A193 B7 stud bolt with A194 2H nut Xylar Xylan coating, Haihao Group fastener shipment to Malaysia
Product Specification Summary
| Description | Size | Length | Material & Coating |
| Stud bolt + 2 nuts H=D | 1 1/4″ | 254 mm | ASTM A193-B7, A194-2H, Xylar + Xylan |
| Stud bolt + 2 nuts H=D | 7/8″ | 245 mm | ASTM A193-B7, A194-2H, Xylar + Xylan |
| Stud bolt + 2 nuts H=D | 3/4″ | 175 mm | ASTM A193-B7, A194-2H, Xylar + Xylan |
| Stud bolt + 2 nuts H=D | 5/8″ | 90 mm | ASTM A193-B7, A194-2H, Xylar + Xylan |
The ASTM A193 B7 stud bolt is widely selected for high-pressure, moderate-temperature flange assemblies. Our client requested full sets supplied with two nuts per stud, following H=D thread engagement rule. We prepared four common sizes covering 1 1/4″, 7/8″, 3/4″ and 5/8″, with custom lengths of 254 mm, 245 mm, 175 mm and 90 mm respectively. Every piece went through dimensional check, material verification and coating inspection before packing, to meet the tight quality control standard of the Malaysian energy site.
What makes this ASTM A193 B7 stud bolt package stand out is the dual Xylar + Xylan finish. This fluoropolymer coating delivers stable anti-galling performance, avoiding thread seizure after long service. It also adds reliable corrosion resistance for tropical humid working conditions in Malaysia, which helps site teams complete future disassembly and maintenance smoothly without thread damage. Many local EPC contractors prefer this coating combination when ordering flange bolting for offshore and onshore process lines.
At Haihao Group, we keep stock and custom production available for ASTM A193 B7 stud bolt sets. Whether customers need standard dimensions or non-standard lengths, we can supply matching A194 2H nuts and provide full material test reports. All fastener batches follow traceable quality procedures, suitable for oil, gas and petrochemical projects across Southeast Asia. If you are sourcing reliable flange bolting for your upcoming project, send your specs to our team for a formal quotation.

