Engineering Reference & Knowledge Base
Comprehensive technical guides, material references, and industrial compliance data. All information is based on the latest ASTM, SAE, ASME, and AISC publications.
Core Engineering Guides
Material & Grade Reference
Compare material grades, tensile strengths, and corrosion resistance across carbon steel, stainless, and alloys.
Fastener Head Markings
Identify bolt grades (SAE, Metric, ASTM) and understand their tensile strength and proper applications.
Thread Profiles & Types
Compare Metric, UNC, UNF, NPT, and BSPT threads. Understand the difference between coarse and fine pitches.
Coatings & Finishes
Understand the impact of Hot-Dip Galvanizing, Zinc Plating, and PTFE on thread fit and corrosion resistance.
Galvanic Corrosion Index
Anodic index chart for preventing galvanic corrosion when dissimilar metals are in contact.
Piping Schedules
Technical reference for nominal pipe sizes (NPS) and schedules (Sch 40, Sch 80, Sch 160) wall thickness.
Flange Bolt Patterns
ANSI B16.5 pipe flange reference for bolt circle diameters (BCD) and required number of bolts per class.
Hardness Conversion
Convert between Rockwell C, Rockwell B, Brinell, and Vickers hardness scales with approx. tensile limits.
Welding Symbols (AWS)
Quick guide to reading AWS structural welding symbols, including fillet, V-groove, and field weld flags.
Surface Roughness (Ra/Rz)
Industrial surface finish guide. Compare Ra, Rz, and RMS values with equivalent machining processes.
Sheet Metal Gauges
Convert sheet metal gauges (AWG/MSG) to decimal inches and mm for steel, aluminum, and galvanized.
IP Ratings Chart (EN 60529)
Understand Ingress Protection codes (IP65, IP67, IP68) for industrial electrical enclosures and mechanical housings.
Hydraulic Fittings Guide
Identify JIC, NPT, ORFS, and DIN hydraulic fittings. Technical reference for threads and flare angles.
Bearing Lubrication
Master industrial bearing maintenance, relubrication intervals, and grease compatibility requirements.
Steam Saturation Tables
Pressure vs Temperature relationships for saturated steam. Essential for process heating and boilers.
Pump Selection & Laws
Understand centrifugal pump curves, NPSH requirements, and the Affinity Laws for performance scaling.
Chain & Sprocket Guide
Identify ANSI roller chain sizes, pitch measurements, and sprocket compatibility for power transmission.
Engineering Glossary
Master the definitions of industrial properties like Yield Strength, Passivation, and Galvanic Corrosion.
Common Industrial Standards
High Strength Structural Bolts
The standard for heavy hex structural bolts, heat treated, steel, 120 ksi minimum tensile strength. Used primarily in structural steel joints in heavy construction and industrial buildings.
View Compliant Products →Ultra-High Strength Structural Bolts
Standard for heat treated alloy steel structural bolts, 150 ksi minimum tensile strength. Required for specialized high-load applications where A325 bolts are insufficient.
View Compliant Products →Mechanical Requirements for Fasteners
Covers the mechanical and material requirements for inch-series steel bolts, screws, and studs. Defines Grade 2, Grade 5, and Grade 8 fastener properties commonly used in automotive and machinery.
View Compliant Products →Pipe Flanges and Flanged Fittings
Covers pressure-temperature ratings, materials, dimensions, and tolerances for pipe flanges. The critical standard for ensuring pressure vessel and piping system integrity.
View Compliant Products →High-Temperature Bolting
Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service. The go-to standard for fasteners used in pressure vessels, valves, and flanges in the petrochemical industry (e.g., B7, B8, B8M grades).
View Compliant Products →High-Temperature Nuts
Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service. Always paired with A193 bolts. Defines the infamous Grade 2H heavy hex nuts used globally in refineries.
View Compliant Products →Metric Fastener Mechanical Properties
Mechanical properties of fasteners made of carbon steel and alloy steel. The global ISO standard defining metric property classes like 8.8, 10.9, and 12.9 for bolts and screws.
View Compliant Products →Inch Series Hex Bolts & Screws
Dimensional standard for Square, Hex, Heavy Hex, and Askew Head Bolts. Dictates the physical dimensions (head width, thread length, tolerances) for standard inch fasteners in North America.
View Compliant Products →Hexagon Head Bolts (Metric)
German (Deutsches Institut für Normung) standards for hex bolts with partial (931) and full (933) threads. Still the most commonly referenced dimensional standard for metric hex bolts worldwide, though being officially replaced by ISO 4014/4017.
View Compliant Products →Hexagon Socket Head Cap Screws
Dimensional standards for Allen/socket head cap screws. Extremely common in machine building, die casting, and tight-space applications where external wrenches cannot be used.
View Compliant Products →High Strength Structural Bolts
Consolidated specification covering A325, A490, F1852, and F2280 structural bolts. This modern umbrella standard replaces the individual A325/A490 specs for steel-to-steel structural connections in the USA.
View Compliant Products →Welded and Seamless Steel Pipe
Standard specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated. The most standard carbon steel pipe specification in the USA, used for low/medium pressure systems like water, steam, and air lines.
View Compliant Products →Hexagon Regular Nuts
Dimensional and mechanical specification for standard metric hex nuts. The global standard for metric nuts, defining wrench sizes and thread compatibility (replaces DIN 934).
View Compliant Products →Scientific Integrity & Verification
All technical data provided in our knowledge base is cross-referenced with the latest publications from ASTM International, the American Society of Mechanical Engineers (ASME), and the American Institute of Steel Construction (AISC). Our mission is to prevent industrial failure through precise engineering data.