English
Leading the Structural Metal Fabrication Industry with Superior Fastening Solutions for Extreme Pressure and Temperature Environments.
We specialize in the fabrication of high-performance b7 bolt solutions, ensuring structural integrity in the most demanding industrial environments through advanced metallurgy and precision machining.
Full compliance with international standards for chromium-molybdenum steel, providing exceptional tensile strength and hardness.
Optimized heat treatment processes that enable the bolt to maintain structural integrity under intense temperature fluctuations.
Advanced surface treatments including zinc plating and fluoropolymer coatings to prevent oxidation in saline environments.
Engineered for heavy-duty load bearing, ensuring your metal structures remain stable under maximum stress.
CNC-machined threading ensures perfect fit and seamless assembly, reducing installation time and labor costs.
Quick turnaround for bespoke dimensions and specific grade requirements to fit your unique project needs.
| Product Name | Diameter (in) | Tensile Strength | Yield Strength | Hardness (Bhn) | Coating |
|---|---|---|---|---|---|
| B7 Bolt Standard 1/2" | 0.500 | 125 kPa | 105 kPa | 350 | Plain Oil |
| B7 Bolt Heavy Duty 5/8" | 0.625 | 125 kPa | 105 kPa | 350 | Hot Dip Galv |
| B7 Bolt Industrial 3/4" | 0.750 | 125 kPa | 105 kPa | 350 | Zinc Plated |
| B7 Bolt Precision 7/8" | 0.875 | 125 kPa | 105 kPa | 350 | PTFE |
| B7 Bolt Structural 1" | 1.000 | 125 kPa | 105 kPa | 350 | Plain Oil |
| B7 Bolt Heavy Duty 1-1/8" | 1.125 | 125 kPa | 105 kPa | 350 | Hot Dip Galv |
| B7 Bolt Industrial 1-1/4" | 1.250 | 125 kPa | 105 kPa | 350 | Zinc Plated |
| B7 Bolt Precision 1-1/2" | 1.500 | 125 kPa | 105 kPa | 350 | PTFE |
Deployed 50,000+ B7 bolts for high-pressure steam pipelines, reducing leakage rates by 15%.
Provided corrosion-resistant B7 fastening systems for tower structures in salt-heavy air.
Supplied PTFE coated B7 bolts to withstand corrosive acid vapors in reactor seals.
Implemented high-strength B7 structural bolts for vibration-resistant joints.
Used heat-treated B7 bolts for flange connections in high-temperature boiler zones.
Provided heavy-duty B7 bolts for crushers and conveyor structural frames.
Critical for flange connections in high-pressure piping systems where leaks are catastrophic.
Securing turbines and heat exchangers that operate under extreme thermal cycles.
Providing the necessary clamp strength for drill-string assemblies and well-heads.
Used in the construction of excavators and cranes for high-load structural joints.
Essential for ship-building and port cranes where strength and salt-resistance are key.
Utilized in hangar structures and support gantries for heavy aircraft maintenance.
Rigorous quality management systems ensuring every bolt meets strict dimensional and material tolerances.
All Grade B7 bolts are tested for tensile strength and yield point according to ASTM specifications.
Complete mill certificates provide full chemical and mechanical history for every batch of steel used.
It is a high-strength fastener made from chromium-molybdenum steel, heat-treated to ASTM A193 Grade B7 standards for high pressure and temperature services.
We offer a variety of coatings including Plain Oil, Hot-Dip Galvanized, Zinc Plating, and Xylan/PTFE for maximum chemical resistance.
Our bolts undergo quenching and tempering to achieve the precise hardness and tensile strength required for ASTM Grade B7.
Yes, all orders include MTRs (Material Test Reports) detailing the chemical composition and physical properties of the batch.
Depending on the complexity and quantity, our standard sample lead time is 7 days, with bulk orders following a strict production schedule.
While B7 is excellent for high temperatures, for cryogenic or extremely low-temperature services, we recommend specific alloys or B8/B8M options.
Partner with the industry leader in structural metal fabrication for fasteners that never compromise on strength or safety.